Home

FLIGHT MANAGEMENT COMPUTER

1. USER S MANUAL 8 1 FLIGHT MANAGEMENT COMPUTER TABLE OF CONTENTS SUBJECT PAGE FLIGHT MANAGEMENT COMPUTER CONVENTIONS AND USAGE 8 3 FMC DISPLAY PAGES ACCESSED WITH MODE 8 7 FLIGHT MANAGEMENT SYSTEM INTERNAL FUNCTIONS 8 12 PRE FLIGHT INITIALIZATION PROCESS e 8 14 ARRIVAL DEPARTURE PROCEDURES 222 2 8 24 REVIEWING THE ROUTE OF ELIGE E Fee 8 27 FIXES AND CUSTOM WAYPOINTS IN THE 8 30 FMC FLIGHT PLAN MODBIEIGATION io p RP pe 8 33 FMC TAKEOFF PROCEDURES eset meds 8 36 FMC CLIMB OPERATIONS eere ences edere nnd rk rennes 8 40 FMC CRUISE OPERATIONS kb ien eto eiieeii 8 42 FMC DESCENT OPERATIONS lt ines 8 44 FMC tet ot beta oda edes 8 47 FMC FLIGHT REFERENCE AND CREW 8 48 PMDG 737NG AOM DO NOT DUPLICATE Revision 1 2 15NOV03 8 2 FMC USER S MANUAL INTENTIONALLY BLANK Revision 1 2 15NOV03 DO NOT DUPLICATE PMDG 737NG AOM USER S MANUAL 8 3 FLIGHT MANAGEMENT COMPUTER CONVENTIONS AND USAGE Overview The Next Generation 737 uses a fully inte
2. Occasionally it is possible to trigger the low fuel warning during initial climb out when a combination of factors such as current fuel burn length of flight fuel on board and reserve fuel desired create only a small margin of extra fuel on the airplane for current conditions Once the aircraft is stable at cruise flight and current fuel burn is reduced to cruise levels the warning will normally cease Continued INSUFFICIENT FUEL warnings should not be ignored however as they may be an indication of an impending problem PMDG 737NG AOM DO NOT DUPLICATE Cost Index The cost index number is a scale value from 0 to 1000 that helps to determine a level of economy for aircraft performance calculation Cost index is calculated as the aircraft operating cost divided by fuel cost hour aircraft operating cost Fuel Cost in Cents Pound A cost index of 00 will result in the maximum cost economy with slow climb rates maximum range cruise and slow descent speeds predicted by the FMC in order to minimize fuel burn A high cost index will result in higher climb rates cruise and descent speeds The cost index is designed to provide a relative index of the cost of aircraft operation vs time en route Note Cost index is not currently functional in this version but a basic model has completed development A fully functioning cost index model will be added to the FMC CDU at a future update TRIP CRZ ALT
3. Overview The FMC CDU is a highly sophisticated navigation tool that can be used to navigate the airplane to almost any point in three dimensional space The database contains tens of thousands of pre defined navigation fixes that describe the location of airports approach fixes or reference points in the database As a tool the FMC would be slightly limited if it were not possible for crewmembers to define their own navigation waypoints from within the database when needed The FMC is capable of navigating the aircraft to any point in space that can be defined using geographic reference or reference to a fix already included in the FMS database This provides endless opportunity for crews to define points in space that can be used for navigation For example when given ATC instructions to cross 15 miles west of XYZ at and maintain seven thousand a fix can be described in the FMC CDU in order to facilitate compliance with the instructions Additionally the crew can define waypoints simply for their convenience or for improved accuracy of navigation along extended routes FMC Database Waypoints Waypoints are entered into the left side of the RTE LEGS page individually via the scratchpad Navigation identifiers Fixes can be represent the following Airport Waypoint NDB VOR VOR DME VORTAC DME TACAN Runway Final approach fixes Revision 1 2 15NOV03 DO NOT DUPLICATE Navigation fixes can be en
4. targeted This will cause the information to be copied from the scratch pad to the desired line in the display LINE PAIR GR DO NOT DUPLICATE FMC USER S MANUAL 8 5 Obviously some information cannot be down up selected Most lines that require information input from the crew will accept down up selection of information however Scratchpad The last line of the display is a scratchpad which allows for alpha numeric input by the crew or down selection of FMC data from other lines Data Lines Six pairs of lines that contain data and information Lines may also contain prompts for data input by the crew The upper line in each line pair is called the Title Line small font while the lower line is called the Data Line large font Lines and line pairs are referenced by the associated LSK on either side of the display Hence 1L 2L 3L or 1R 2R 3R etc PAGE TITL LINE L1 TITLE LINE 1L DATA LINE L2 TITLE Display Norms and Prompts The FMC CDU has certain norms that if recognized make the unit easier to use Revision 1 2 15 Revision 1 2 15NOV03 8 6 FMC USER S MANUAL Required Entry Boxes In order to operate the FMC requires certain information to be entered Gross Weight Fuel Reserves and Cruising Altitude are examples of information that the FMC needs in order to operate correctly Boxes in any FMC CDU display line indicate that information is required by the FM
5. will get from the end of the ROUTE OF FLIGHT to the landing runway It is important to recognize that not all SID STARs serve every runway at any specific airport In fact it is common to find a PMDG 737NG AOM specific SID or STAR that only serves a portion of the runways at any given airport and thus it is not unusual to find that selecting certain runways will eliminate some SID STAR procedures from availability Note The assignment of a SID STAR and TRANSITION procedure is normally always handled by ATC as the procedures are designed to assist ATC traffic flow processes Crews almost never select and load a SID STAR without it having been assigned by ATC but for the purpose of MSFS the use of these procedures is entirely at crew discretion DEP ARR INDEX Page The DEP ARR INDEX page allows for selection of the published arrival and departure procedures at the origin and destination airports The DEP ARR INDEX page is accessed by pressing the DEP ARR key on the FMC CDU keypad DEP ARR INDEX KIAD EIFE The 1L 3L and 6L keys allow for selection of SID procedures stored in the FMC SID database Keys 1R through 4R and 6R allow for selection of STAR procedures stored in the FMC STAR database The center of the display shows the crew entered or COMPANY ROUTE entered arrival and departure ICAO airport codes USER S MANUAL 8 25 return to the DEP ARR INDEX page to select the desired STAR procedure Depar
6. H38 565 4 wO 7 2y 6 REF AIRPORT y GMT MON DY 1849 22 11 5 The fields displayed on the POS INIT page are as follows LAST POS This reference position is the last recorded position of the aircraft at the time the aircraft was powered down or at the time the brakes were last set If determined to be applicable this information can be down selected via the scratchpad to satisfy the position initialization requirements of line Crews are advised to use caution when down selecting the LAST POS reference position as it may contain accumulated IRS drift inaccuracy from the previous flight In addition if the aircraft has been towed to a new gate or moved while the IRS was not aligned the reference position will be inaccurate REF AIRPORT Entry of a reference airport ICAO code International Civil Aviation Organization will cause a reference position to become available in 2R This reference position can be down selected via the scratchpad to satisfy the position needs of 4R if desired GATE The gate position reference is not currently modeled in the AIRAC database but is used to provide exact gate position Revision 1 2 15 8 16 FMC USER S MANUAL reference to the IRS during position initialization SET IRS POS The prompt boxes at 4R indicate that current aircraft position has not be initialized or that any of the IRS modules is in the align mode If neither of these conditions
7. Level entered at the 1L LSK WIND ALT DIR SPD Wind altitude speed and direction entries are made by the crew based upon reported conditions observed conditions use the wind indication on the Nav Dissplay or forcast conditions in order to assist the FMC in computing the descent profile as defined in the flight plan Helpful Hint This functionality is operating in the PMDG FMC and is very important for accurate descent planning purposes If you find that you are continually receiving a DRAG REQUIRED message during descent it could be that you have not entered wind conditions into the forecast page when a tailwind condition exists DO NOT DUPLICATE Revision 1 2 15 8 46 FMC USER S MANUAL Conversely if you find that the descent appears to be shallow or power is needed to maintain the descent path a headwind could exist along the descent path that was not entered into the Forecast page Altitude bands for the winds are entered at the discretion of the crew Descent Profile Logic The default descent profile logic is to effect an economy descent form cruise altitude to the transition altitude After passing through the transition altitude 240 knot descent is commanded The crew may manually override the default descent profile through the use of speed and or altitude constraints entered into the RTE LEGS page The descent profile can also be modified using the MCP speed and or al
8. STAR The PMDG FMC is designed to maximize the realism of user experience by including access to many of the SID STAR procedures used throughout the world Note We have included a sample of procedures that covers approximately 1300 airports worldwide with runways greater than 5000 feet in length This procedure database realistically represents approximately 1 3 of all the SID STAR airports worldwide and in some cases may not contain all the procedures for any given airport Additionally because the procedures change continually you may find them to be out of date with currently published procedures We have developed a comprehensive and easy to use programming lexicon to that will allow even novice users to program their own SID STAR procedures see later in this guide PMDG regularly updates the SID STAR database for the PMDG FMC and the most current versions of this database will always be available at the PMDG 737 Operators Information Center at www precisionmanuals com Using SID STARS Loading a SID STAR procedures can at first appear complicated to users who do not understand how SID STAR procedures and TRANSITIONS are used to manage aircraft traffic flow The design theory behind SID STAR procedures is really quite simple Guide aircraft into and out of the airport terminal space using predicted flight paths in order to Revision 1 2 15NOVO3 DO NOT DUPLICATE keep arrival and departure traffic from conf
9. The approach page provides the crew with information directly related to the final approach to landing process A sample APPROACH REF page is shown below GROSS WT APPROACH REF i 124 7 15 30 13iKT EIGA 34 nem El FLOOFT 2168M 40 129KT FLAP Sep 409 129KT WIKD COKE f 5 gt CRS 110 30 341 The following information is provided on the APPROACH REF page GROSS WT Line 1L provides the current airplane gross weight in thousands of pounds unless the figure has been manually adjusted by the crew Manual adjustment of the GROSS WT figure is accomplished by up selecting a manually entered figure from the scratchpad Valid entries are three digits with an optional decimal point Crew entered GROSS WT values are used for predictive purposes only and do not affect aircraft computation of actual gross weight Runway Length Line 3L contains runway reference information to assist the crew in planning the touchdown and stopping phase of flight The header line in 3L will display PMDG 737NG AOM the ICAO airport identifier followed by the runway number and L C R designator Runway length reference information is provided in large font in 3L and is displayed in both feet and meters Helpful Note This information is only displayed after an approach the the destination has been selected in the DEP ARR menu DO NOT DUPLICATE ILS FREQ
10. Thrust Modes When airborne the N1 LIMIT page will not display takeoff or climb thrust modes These modes will be replaced by the in flight thrust limit modes These modes will be displayed in lines 1L through 3L of the THRUST LIM page and are as follows GO AROUND Go around thrust limit e CONTINUOUS Continuous maximum allowable thrust limit e CLIMB Full Climb Thrust e CRUISE Cruise limit thrust Ni LIMIT 1 1 ALTO To 95 4 965 4X E 94 9 94 9X 90 1 90 1X REDUCED lt SEL gt To select of the various thrust limits available simply press the associated LSK and the FMC CDU will update the FMS to adjust the available thrust limit Likewise the CLB 1 and CLB 2 derated climb thrusts can be selected by pressing the associated LSKs near the bottom of the display Go around thrust is a limit mode provided for go around conditions where high engine thrust settings are required for a short period of time Continuous thrust limit mode provides the highest thrust output possible from the engines in continuous operation This mode Revision 1 2 15NOV03 DO NOT DUPLICATE is useful in situations involving engine failure while the aircraft is at high gross weights or at a high cruise altitude This thrust limit mode will provide the highest thrust output possible without damaging engines Cruise thrust limit mode is the normal operating thrust limit mode for
11. V214 from WOOLY to SWANN The BAL VOR is located between WOOLY and SWANN but is not on a direct path between the two so the route of flight turns slightly at BAL Revision 1 2 15NOV03 DO NOT DUPLICATE On longer routings a flight path may turn in many places or cross upwards of 40 navigation fixes before reaching desired fix so the FMC CDU allows crewmembers to define the route to follow in the VIA column of the RTE page 2 2 in order to prevent the typing of every fix name along a route of flight In our example we wish to follow V214 between WOOLY and SWANN This we upload SWANN as the fix following WOOLY but then take the additional step of adding V214 to the VIA column describing how we should reach SWANN WIA DIRECT Examining the RTE page 2 2 now shows that our programmed flight is DIRECT WOOLY then V214 to SWANN When the entire route of flight is entered the RTE 2 2 page will look something like this Note KIAD KJFK is a very short route of flight On longer routes it is possible to have 5 or 6 pages of navigation information added Simply use the NEXT PAGE key to reach those pages of information Saving a Flight Plan Once the desired route of flight has been entered it is always a PMDG 737NG AOM good idea to save the route of flight for future use To save a flight plan return to the RTE page 1 and notice that the lt SAVE prompt is now active at the 5L LSK You may ne
12. climb speed mach number for the climb phase of flight This is the target climb speed to which the airplane will accelerate if operated under VNAV once the airplane is clear of other more restrictive speed constraints for flaps or regulated airspace Revision 1 2 15NOVO3 DO NOT DUPLICATE SPD REST The SPD REST field at 3L is a dynamic information field that will change during the course of the climb to show the MOST RESTRICTIVE speed that can be allowed for the climb For example when a FLAPS10 takeoff is planned 161 FLAPS will be displayed at 3L as the speed and reason for the restrictive speed limitation As the flaps are retracted the 161 FLAPS will change to 171 FLAPS etc indicating that as the aircraft is cleaned up for high speed flight it is possible to increase the speed constraint for the climb When the aircraft is clean and able to accelerate for climb the 3L LSK prompt will display the speed restriction as defined below the local transition altitude For example in the US if an 10 000 foot transition altitude is used the 3L LSK will display 250 10000 Once clear of all restrictions the restrictions at 3L will be deleted and the aircraft will accelerate to TGT SPD if operated under VNAV When not operated under VNAV the crew may use this page to determine the current restrictive speed or planned climb speed Maximum Climb Rate The speed and climb gradient that will yield the maximum cl
13. decisions PROGRESS Pages The progress display occupies two display pages and can be called up by pressing the PROG key on the FMC CDU The first progress display page is shown below PR PROGRESS dgs 18472 DTS ETA B2 L9OUQz 139 1907s 418 20012 0 ro To SEHE 331 Be FROM ALT ATA FUEL The first line of the PROGRESS page display contains information related to the last flight plan fix that was over flown From left to right the information displayed includes e The name of the fix e Aircraft altitude at time of fix crossing in thousands e Actual Time of Arrival at last fix e Fuel on board at the time of fix crossing NEXT DEG FUEL The second line of the PROGRESS page display contains information describing the fix that is currently the active fix in the flight plan From left to right the information displayed includes DO NOT DUPLICATE Direct Ground Track from previous fix to current fix in the flight plan Distance to go to current fix e Estimated Time of Arrival at current fix Predicted fuel remaining at the current fix The same information for the next fix in the flight plan is contained in line three of the PROGRESS display The fourth line in the PROGRESS display includes the destination distance to go ETA at destination and estimated fuel remaining at destination This line can be used to estimate arrival time at the gate and fuel on b
14. event of an engine failure in flight selecting the ENG OUT gt prompt at 5R will instruct the FMC to provide engine out speed schedules performance predictions and flight guidance In the event that the aircraft is above the maximum engine out altitude at the time of the engine failure the cruise altitude will automatically be lowered to the engine out maximum altitude PMDG 737NG AOM DO NOT DUPLICATE Revision 1 2 1 8 44 USER S MANUAL FMC DESCENT OPERATIONS Overview The FMC descent capabilities provide for descent planning and execution A planned descent can only exist when a lateral route containing at least one descent constraint is active in the RTE LEGS page The descent planning features of the FMC allow the crew to set speed transitions descent path restrictions and waypoint dependent speed and altitude constraints DES Page The descent page provides the crew with access to descent planning and information The DES page is selected by pressing the DES key on the FMC MCDU keypad The NEXT PAGE PREV PAGE keys may need to be used if the aircraft is still at cruise altitude A sample DES page is displayed below CO A ECON PATH DES 192 spo To OQ 771 284 1958z 407 E SPD REST MPTZALT 240 10000 E D ALT FORECAST The following information is provided on the DES page E D ALT The End of Descent Alti
15. first be entered into the scratch pad PMDG 737NG AOM PMDG 737NG PAGE TITLE LINE LEVEL ITITLED LIME iL DATA LINE PAIR 1R LINE LZ TITLES LINE 2L DATA LINE PAIR 2R LINE PAIR LEVELS TITLE LINE 3L DATA LINE PAIR 4R P LINE PAIR 5R 8 T LHELZ TITLEI LINE 4L DATA LIERLSI TITLE LINE 5L DATA LEAVE LG TITLE LINE DATA SCRATCHPAD LINE Title Line Top line of the display Shows title of Current page display You can use this line to tell immediately what page of the FMC you have displayed Line Select Keys The FMC CDU has six LSKs on each side of the screen in order to facilitate data input and manipulation The keys are identified by their position relative to the display and their sequence from top to bottom e g The LSKs are identified as either Left or Right and are numbered from 1 to 6 starting at the top The LSKs are used for the following functions e Down selection of data from a particular line to the scratchpad if the scratchpad is empty e Data Entry from scratchpad into selected line Access to data or function identified by LSK To down select information into the scratch pad simply press the LSK next to the data you desire to copy This will cause the information to be copied to the scratch pad line To up select information from the scratch pad to a line in the display simply press the LSK for the line to which the information is
16. next LSK pressed will cause deletion of that associated flight plan navigation fix The desired fix can then be deleted by pressing the associated LSK This will cause the FMC produce a modification to the active route that eliminates that fix from the flight plan When deleting fixes from a flight plan the FMC will display a ROUTE DISCONTINUITY that needs to be connected using the same technique described above Revision 1 2 15NOVO3 8 36 FMC USER S MANUAL FMC TAKEOFF PROCEDURES Overview The FMC provides a number of functions to assist with the takeoff planning process Specifically the FMC is capable of taking desired performance input from the crew and calculating engine thrust limits engine takeoff thrust derates and autothrottle management These features are used as part of the normal pre takeoff process and are described below The FMC CDU carries a tremendous amount of data regarding engine performance under greatly varied conditions This data combined with sensor input from the Air Data Computers and the crew is used to automatically manage the engines in such a manner that engine limitations are never exceeded Put another way the FMS will allow the crew to operate the engines to the peak of power or efficiency without undue concern for engine damage by over temperature conditions 1 LIM Page The N1 LIMIT page provides the crew with the ability to manually select the thrust modes to be used by
17. normal cruise flight operations TAKEOFF REF Page The TAKEOFF REF page provides information pertaining to takeoff performance and settings This information includes such settings as flap acceleration height engine out acceleration height thrust reduction height runway slope and wind condition information runway condition takeoff speeds trim and runway position shift information TAKEOFF REF Ir 3 E 9 Flap Setting The planned setting can be entered at line 1L If an invalid takeoff flap setting is entered manually at 1L an error message will be generated The takeoff flap setting must be correct in order for the FMC to generate the correct takeoff speeds Planned Thrust The thrust selected in the 1 LIMIT page is displayed at line 2L Additionally the maximum available N1 speed is displayed in large font CG Trim Information not usable within MSFS at this time Takeoff Speeds V1 VR and V2 reference speeds are displayed in lines 1R through 3R The speeds are not automatically populated to the display but can be brought up by pressing in the 1R 2R and 3R LSKs PMDG 737NG AOM USER S MANUAL 8 39 respectively once the preflight is completed and a flaps setting is entered at the 1L LSK The crew is responsible for validating the accuracy of these computed takeoff speeds by manually checking them against the manufacturer specified takeoff speeds Takeoff speeds can be overridden
18. or manually entered by the flight crew if desired Valid entries are any three digit number from 100 to 300 If any changes are made to the takeoff performance initialization the takeoff speeds will be removed and must be reconfirmed PMDG 737NG AOM DO NOT DUPLICATE Revision 1 2 1 8 40 USER S MANUAL FMC CLIMB OPERATIONS Overview The FMC provides a number of methods to assist the crew in planning managing and effecting a precise and economical climb regime of flight The FMC accepts climb performance demands from crew member entries and adjust aircraft performance via the FMS and autothrottle servos CLB Page The climb page allows crew access to current and upcoming climb conditions and climb profile information The active climb speed mode is always displayed in the CLB page The CLB page is accessed by pressing the CLB key on the FMC CDU A typical CLB page is shown below ECON CLE 1 1 CRZ ALT 19712 136 wm P RATE ANGLE CRZ ALT The cruise altitude that has been planned for the flight is displayed at 1L The current cruise altitude is displayed if one has been selected and CLB is the active mode If the current altitude is not displayed 1L will contain prompt boxes which can be replaced by up selecting the desired cruise altitude from the scratchpad TGT SPD The Airspeed Mach number displayed at 2L represents that target
19. which LSK you pressed In the case of WOOLY there are more than one intersections that bear this name Geographically they are very far apart but the FMC CDU will always present them to you for validation before using one in a flight plan As such you will be presented with a screen the looks similar to this SELEY 57 if E ECT DESIRED WAYF INI 1 1 Woe 92 2 WOLY El52 17 9 The FMC CDU will always sort the fixes so that the fix closest to your position will be listed FIRST in the list This makes 8 17 Revision 1 2 15 8 18 FMC USER S MANUAL selection easy but crewmembers are still responsible for verifying fix locations prior to using them for flight To select the desired fix press the LSK adjacent to the name of the fix you wish to use In this case 1L LSK The FMC will then populate the fix name to the RTE page 2 2 as follows WOOLY is now displayed under the TO column on the RTE page 2 2 You will note that DIRECT is displayed under the VIA column as the the FMC CDU assumes that it should fly DIRECT to any fix entered into the RTE page The next fix described in the flight plan is SWANN When SWANN is entered into the RTE page the FMC CDU also assumes that DIRECT is the desired method to reach SWANN after passing WOOLY YIR DIRECT DIRECT This would not be a correct according to our clearance as the cleared route of flight was to follow
20. yet established active communications with that sub system In this case because ACARS functionality is not currently available in the PMDG FMC INIT REF Key When pressed the INIT REF key will provide access to one of the following pages IDENT POS PERF THRUST LIM TAKEOFF APPROACH The FMC will automatically display the page which is most appropriate for the current phase of flight During the preflight phase for example the FMC will begin by displaying the IDENT or POS pages so as to allow the crew to begin initializing the FMC During the approach phase of flight the FMC will automatically choose the APPROACH page etc If the page displayed is not the page desired by the crew pressing the LSK which has the lt INDEX prompt usually 6L will return the MCDU to the following screen The INIT REF INDEX page allows crew access to the following initialization and reference pages IDENT Aircraft identification and nav database verification page POS Position Initialization on ground or Position Reference page in flight PERF Located on page 2 2 of PERF page Performance initialization page Gross weight Fuel Loading Cost Index etc Revision 1 2 15NOVO3 8 8 FMC USER S MANUAL TAKEOFF Takeoff parameter reference and initialization page APPROACH Approach reference and initialization page NAVDATA Display and list navdata information and saved flight plans Other func
21. C Examples include Gross Weight Startup Position etc GW CRZ PERF gr 000 D 28 7 pu P ZR i quas RESERMES OAT 1 0 Dx cost INDEX LSK Prompts At any time lt gt carat is used adjacent to a line select key this indicates that an additional or related menu can be accesd by pressing the associated LSK For example the lt INDEX prompt above indicates that pressing the 6L LSK will take you to the INDEX page Crew Data Entry Selection Lines Dashed lines allow for crew entry of specific data which is unique to each individual flight such as departure airport destination airport speed altitude restrictions flap acceleration heights etc POS INIT 1 3 gt Last Fos 35952 5 078948 1 REF AIRPORT DO NOT DUPLICATE Page Numbers Many pages of information contain more information that the FMC CDU screen is able to show at one time In these cases the FMC CDU will display a page counter at the upper right corner of the screen In this case 1 3 indicates that the display is currently showing screen one of three total screens for POS IDENT Using the CLR key Pressing the CLR key a single time is similar to pressing the backspace key on a conventional keyboard In order to facilitate erasing the scratch pad we have added the ability to press and hold the CLR key to delete the entire contents of the scratch pad To rem
22. EP MAT sree 4 az 8 BI f 0 751 2 405 TURE Hi FUEL AT kBGE 15 4 ENG OUT gt Information contained in the CRZ page includes CRZ ALT Line 1L shows the currently selected cruise altitude This information will always be displayed unless a descent mode is activated Prompt boxes in the CRZ ALT line indicate that crew entry of cruise altitude is required The displayed cruise altitude is the altitude that was entered into the flightplan as described earlier The selected cruise altitude can be modified either by direct entry into the CRZ page or Revision 1 2 15NOVO3 DO NOT DUPLICATE by selecting a new altitude using the MCP altitude knob If the MCP altitude is set to an altitude that is higher than the current cruise altitude the cruise altitude will be updated to the new altitude If the MCP altitude is set to an altitude that is lower than the current cruise altitude and the aircraft is more than 50 miles from the top of descent the cruise altitude will be updated to the new altitude and a descent commenced If the MCP altitude is set to an altitude that is lower than the current cruise altitude and the aircraft is within 50 miles of the top of descent an early descent will be initiated at a rate of 1000 fpm until the normal descent path is intercepted TGT SPD The target speed displayed at the 2L LSK becomes active when the aircraft levels off at c
23. Planned cruise altitude for the flight can be entered in the CRZ ALT section Note Do not exceed the TRIP altitude described here or you will be planning a cruise altitude that is not economically acceptable for current aircraft conditions and configuration TANS ALT This entry allows for manual adjustment of the transition altitude for the area of flight The completed PERF INIT page follows ACT PERF INET UTI FL3 Ay FL280 E ERZ WIND RESERVES Tc or B 10 0 E aC Revision 1 2 15 8 22 USER S MANUAL Upon completion of the PERF INIT page the N1 LIMIT gt prompt will be displayed at the 6R LSK N1 Limit Page The N1 Limit page is used to select the thrust performance desired during takeoff and climb Nl LIMIT eis iud 1 24K 22K DERATE zn TIO 1 gt ZIE DERRATE Available takeoff power derates are listed on the left side of the display while the climb power derates are available on the right side of the display Thrust derates are normally used when the aircraft is lighter than maximum gross weight and serve to normalize acceleration forces takeoff roll and climb rates provided that runway length and climb clearance are not a factor For example if very few passengers are boarded a full thrust takeoff will result in excessive acceleration during takeoff roll and high deck angles due to the over abundance of thrust based on the lig
24. R S MANUAL 8 11 wrap around feature is included so that if 1 5 will be displayed next This feature the NEXT PAGE key is pressed again when also works for the PREV PAGE key the current page is the last in the display e g 5 5 then the first page of the display PMDG 737NG AOM DO NOT DUPLICATE Revision 1 2 1 Revision 1 2 15NOV03 8 12 USER S MANUAL FLIGHT MANAGEMENT SYSTEM INTERNAL FUNCTIONS Performance Management The FMS is capable of managing nearly all aspects of aircraft performance so as to optimize precision and economy of flight The FMS is only capable of providing such information if the gross weight cost index target altitude and a route have been entered into the FMC CDU by the crew Vertical Navigation can only be accomplished if the performance initialization page is complete The performance model uses input from fuel flow engine data altitude gross weight of the aircraft flaps airspeed Mach temperature vertical speed acceleration and location within a programmed flight plan to determine the optimum performance for the aircraft at any given moment The performance management modeling used by the FMS attempts to provide a least cost performance solution for all phases of flight including climb cruise and descent The default cruise performance management setting is ECON or economy cruise The airplane and engine data models are used to provide an optimum vertica
25. UENCY COURSE To further assist the crew with rapid information management the instrument approach frequency and final approach course are provided at the 4L LSK after an instrument approach is selected to the destination airport FLAPS VREF The Vref reference speeds for the FLAPS15 FLAPS30 and FLAPS40 landing flaps settings are provided in lines 1R 2R and 3R respectively These Vref values are directly reported from the aircraft performance database and will change as the GROSS WT figure in 1L changes FLAPS SPEED After reviewing the information contained in the APPROACH REF page the crew can select the desired landing flap setting by down selecting from either 1R 2R or 3R This will cause the selected landing flap setting to be automatically populated to the 4R LSK under the FLAP SPD title This line serves as a quick reference for the currently selected landing flap setting and approach reference speed Additionally if the crew desires to update the landing flap speed to adjust for windshear or gusts the flap setting speed can be upselected from the scratch pad using the format FF SSS Revision 1 2 15 Revision 1 2 15NOVO3 8 48 FMC USER S MANUAL FMC FLIGHT REFERENCE AND CREW SUPPORT Overview The FMC is capable of providing the crew with information regarding the performance of the aircraft during flight as well as supporting information which can help the crew to make informed and accurate
26. aints can be in feet or flight level e g 18000 or FL180 AT constraints are simply entered into the scratchpad and up selected to the desired navigation fix LSK Note The following text describes AT OR ABOVE and AT OR BELOW constraints that are not currently modeled in this version of the FMC These types of constraints are being developed for the PMDG FMC and will be made available in a future update to the airplane and FMC They are described here for completeness AT OR ABOVE constraints are used to indicate that the airplane should cross the associated fix at a specific altitude but may also cross at a higher altitude if the FMS calculates that it is more efficient to do so given the current flight disposition The AT OR ABOVE altitude constraint can be entered in feet or flight level e g 18000 or FL180 AT OR ABOVE constraints are entered into the scratchpad in the format XXXXXA or FLXXXA and up selected to the desired navigation fix LSK AT OR BELOW constraints are used to indicate that the airplane should cross the associated fix at a specific altitude but my also cross at a lower altitude if the FMS Revision 1 2 15NOV03 calculates that it is more efficient to do so given the current flight disposition The AT OR BELOW altitude constraint can be entered in feet or flight level e g 18000 or FL180 AT OR BELOW constraints are entered into the scratchpad in the format XXXXXB or FLXXXB and up selected to the des
27. ame for saved flight plans flight number and planned departure runway can be added ORIGIN 0000 gt CO ROUTE The RTE page is accessed either by pressing the RTE key on the FMC CDU or Revision 1 2 15NOV03 Helpful Hint Saving and loading flight plans is covered in greater detail on page DO NOT DUPLICATE FLT NO Airline code and flight number Valid entries are any alpha numeric combination not including or The flight number will automatically be displayed on the PROGRESS page as well and may be changed but not deleted REVERSE not always displayed the REVERSE cue allows you to load a saved flightplan between to points and to reverse the plan in order to effect a return flight for example ACTIVATE Once a valid origin destination have been added to the RTE page and a flight plan has been entered the FMC CDU will display the ACTIVATE prompt at the 6L LSK Note Once the ACTIVATE prompt is selected the FMC will activate the flight plan to make it usable This will also trigger the EXEC key on the FMC CDU to illuminate indicating that the EXEC key should be pressed in order to confirm the action PMDG 737NG AOM PMDG 737NG Programming the Route of Flight Once the ORIGIN DEST and FTL NO have been entered into the RTE page it will look similar to this des FLT MO PHDG OOT DRIGIM CO ROUTE Notice that the page indication
28. associated LSK When a mode is selected the lt gt indicator will move to the associated line to indicate which mode is currently selected In addition the takeoff thrust limit mode will be displayed in 1R Selecting either 24KN1 22KN1 or 20Kn1 and will override any assumed air temperature figure entered into 1L by the crew Climb Thrust and Climb Thrust Derates Lines 2R through 4R show the available climb thrust limit modes which may be selected by the crew In order they are e Climb is the normal climb thrust mode e CLB 1 Climb 1 gives 3 lower 1 and 8 lower climb thrust e 2 Climb 2 gives 6 lower 1 and 16 lower climb thrust PMDG 737NG AOM FMC USER S MANUAL 8 37 The desired climb thrust limit mode is armed by pressing the associated LSK When a mode is selected the SEL indicator will move to the associated line to indicate which mode is currently armed If a derated takeoff thrust limit was selected the FMC will automatically suggest an optimal climb thrust derate given current temperature or assumed temperature entries This mode can be changed by simply selecting a different climb thrust mode Notes Regarding Reduced Thrust In the interest of reduced wear on the engines reduced thrust should be used whenever practical Climb thrust derates are designed to lower the climb angle and are particularly beneficial in the following ways e Reduce climb angle increases
29. cal track error VTK ERROR in nautical miles and feet XTK ERROR is displayed in nautical miles with a L and R designator to indicate that the aircraft has drifted left or right of course respectively Distance values are displayed up to 99 9 nautical miles VTK ERROR is displayed in feet with a and sign to indicate deviation above and below planned flight track Vertical track PMDG 737NG AOM DO NOT DUPLICATE Revision 1 2 1
30. cation of your FS installation 4 Download the SID STAR database from our 737 Operators Information Center 5 Place all the SID STAR files into the FS PMDG SIDSTARS directory Now you will have access to the full range of navdata and sid star information for the FMC CDU OP PROGRAM The operational program identifier is displayed in line 4L This number is the part number of the FMC operational software program If this number is not matched identically by both FMCs then the system will remain locked at the IDENT page Call Maintenance You cannot fix this from the airplane Toward the bottom of the screen Line 6 contains two prompts INDEX on the left and POS INIT on the right Pressing the 6L LSK adjacent to the INDEX prompt will display the INIT REF INDEX page Pressing the 6R LSK adjacent to the POS INIT prompt will display the Position Initialization page of the FMC POS INIT Page The POS INIT page allows for position initialization of the Inertial Reference System IRS In the current version of the PMDG the IRS is not PMDG 737NG AOM DO NOT DUPLICATE FMC USER S MANUAL 8 15 currently modeled however the information is provided below in anticipation of the IRS position update capability being added at a later date The POS INIT page is selected by pressing LSK at the POS INIT prompt or by selecting POS INIT from the INIT REF INDEX page POS INIT i LAST
31. d steering commands are provided to the AFDS Flight Control Computers in order to correct the cross track error The FMS is capable of providing a great circle Direct To track to any point programmed into the FMC CDU displayed flight path The VNAV guidance function controls the aircraft along the vertical flight path as defined by the FMC CDU entered flight path and the aircraft s performance limitations PMDG 737NG AOM DO NOT DUPLICATE USER S MANUAL 8 13 VNAV takes position data from the navigation system and compares it to the vertical profile as defined in the FMC CDU entered flight plan The vertical navigation function then provides pitch and thrust commands to the AFDS in order to intercept and maintain the defined vertical profile for the current phase of flight For vertical performance modes where vertical speed is unconstrained most climbs the VNAV system will provide pitch and thrust commands to the AFDS so as to maintain the most efficient climb based on the current thrust mode selected This results in the most economically beneficial climb gradient not necessarily the most rapid climb gradient VNAV uses essentially two basic pitch control modes to manage the vertical flight profile speed or rate of climb descent When speed the controlled factor the AFDS autothrottle will be given a target thrust setting by the vertical navigation function and the elevator will be used to control speed resu
32. ds to make up the route PMDG 737NG AOM DO NOT DUPLICATE FMC USER S MANUAL 8 9 The LEGS page is used frequently during the course of flight to manage altitude and speed constraints Additionally the legs page is used to modify individual fixes along the route of flight or to enter customer waypoints into the flight plan LEGS A FLZED 0 781 FLz50 0 781 FLZEO n 81 0 781 FL250 gt HNKO30 25 DEP ARR Key The DEP ARR key accesses the DEPARTURES and ARRIVALS pages and the DEP ARR INDEX page These pages are used to select published departure procedures Standard Instrument Departures or SIDs and published terminal arrival procedures Standard Terminal Arrivals or STARS DEP ARR INDEX The DEP ARR INDEX page allows the crew to select using the appropriate LSKs either the appropriate DEP procedure or an ARR procedure for either of the two possible routes stored in the FMC HOLD The hold key provides control pages through which the crew can establsih and control the addition of holding procedures to the active flight plan Revision 1 2 15NOVO3 8 10 FMC USER S MANUAL RTE HOL SPD TGT ALT 320 A FLz00 FIX 1930 INBD CRS DIR EFC 1 104 R TURN T LEG TIME 1 5 AIH T LEG DIST PROG Page The PROGRESS page is used to monitor the progress of flight and parameters such as time distance and fuel consu
33. e scratchpad is as follows NXXXXX EXXXXXX SXXXXXIWXXXXXX For example entry for a latitude longitude waypoint at the geographic location N33 30 9 W115 56 6 would be entered as follows 1 2 D f81 FLZED 0 781 FL250 0 781 FL250 O 781 FLZED a 4 zt The entry is then up selected to the desired line in the RTE LEGS display where it will be condensed for display in the route as shown below The expanded entry can be redisplayed on the scratchpad by pressing the associated LSK Place Bearing Place Bearing Waypoints PB PB waypoints are fixes defined by the intersection of courses from two waypoints For this reason PB PB waypoints are also described as Course Intersection Waypoints The PB PB waypoint garners it s name from the fact that the waypoint is being defined at a point which is one bearing from one place and one bearing from another For example the geographic location where a course of 010 from one navaid intersects a course of 270 from a second navaid is a PB PB waypoint Revision 1 2 15 8 32 USER S MANUAL waypoints are useful when navigation fix is defined by the intersection of two courses or when called upon to navigate a specific radial from one navaid until intercepting a specific radial of a second navaid The proper format for entering a PB PB waypoint into the scratchpad is as follows XXXXXBBB YYYYYBBB XXXXX and YYYYY represent the
34. ed with power and elevator being managed to maintain the desired speed during the descent HOB ECON SPD DES 192 19382 303 wt WPT CX EE EE gt E DESCENT FORECASTS Page The DESCENT FORCASTS page allows the crew to enter and use forecast values for wind transition level anti ice settings and descent wind direction information A sample DESCENT FORECASTS page is shown below PMDG 737NG AOM FMC USER S MANUAL 8 45 A 5 FORECAS TRANS AE DES FORECAST carr 18000 CABIN RATE ISA DEV FPH Lp ALT WI HD DIR SPEED 2709 25 2809 18 The following information is provided on the DESCENT FORECASTS page TRANS LVL The transition level for the destination airport is displayed in 1L The transition level can be modified by up selecting from the scratchpad CABIN RATE Not Modeled The rate of descent required to adjust the cabin altitude rate of descent in order to minimize the rate of change in cabin pressure TAI ON OFF Altitude at which anti ice is projected to be necessary Boeing has disabled this capability as of this writing ISA DEV QNH Destination airport temperature deviation from Standard Atmoshperic Conditions and airport QNH This information is used to plan the descent portion that will take place below the Transition
35. ed of the climb oo duce ECON CLE 1 1 F bran SPD E 93 amp 0 ier PF ELAPS TO 19212 136 5 9 9 89 9 y lt RATE ENG OUT 5 lt MAX ANGLE RTAS 5 CRZ Key The CRZ key is used to monitor and adjust the parameters that are being used to manage flight during cruise PMDG 737NG AOM Hl 3 CRZ ALT OPT ARS sree 4 FL280 a 5 0 dad To T A D 781 19592 405 1 TURE Mi FUEL AT KBGR 15 4 a ENG OUT E T RTAS The CRZ page provides information related to altitude fuel and speed that can be used by the crew to plan and manage decisions effectively DES Key The DES page provides descent speed fuel and planning information that can be used to control the descent portion of flight There are two methods used to calculate the descent phase of flight and the active method is displayed as part of the DES page title co E gt E D ALT EGONEATHSDES AT dud 192 Sep 0 771 284 7 BI 19582440 2 amp PD WPT 240 7 10000 TA ALT 192 spp lt PORECAST LEGS Page The LEGS page is similar in function to the RTE page in that it displays the loaded route of flight The LEGS page differs however in that the LEGS page will show every single fix over which the flight will cross while the RTE page only shows the major route fixes that connect the individual navigation metho
36. ed to activate your flight plan first m ORIGIN ETAD KIFE FLT PHDG OOT CO RTE REVERSE PERF INIT By pressing the SAVE prompt your flight plan will be saved in a directory as a text file The file is saved in the following location CMlightsimPMDGYFLIGHTPLANS C Mlightsim is replaced by the root directory of your MSFS installation Your flight plan save will be confirmed by the following message in the scratchpad of the FMC CDU lt SAVE REVERSE gt amp PERF INIT gt Loading a saved flight plan Loading saved flight plans is simple to do and very closely mirrors the initialization process used by flight crews around the world to initialize the FMC CDU prior to flight To load a flight plan press the MENU key to bring up the FMC CDU main menu as follows PMDG 737NG AOM DO NOT DUPLICATE FMC USER S MANUAL 8 19 INIT REF INDEX lt DATAS l lt POS BSG RECALL gt amp lt PERF ALT BEST lt ACARS gt lt AP PROACH a 8 OFFSET Select the NAV DATA gt prompt by pressing the 1R LSK This will take you to the NAV DATA screen as follows REF DATA WPT IDENT NAVATD IDENT The REF NAV DATA page is used to review information about individual navigation wapoints navaids and airports from within the naviation database Additionally you can review the names of saved flight plans from this
37. en up selected to 6R by pressing the 6R key This will instruct the FMS to intercept the desired course to the fix The FMS will compute a great circle course between the current airplane location and the closest point of intercept to the desired course and display that course on the ND as a dashed white line Pressing the EXEC key will confirm the change or pressing lt ERASE will cancel the Intercept Course selection Once the lt EXEC key has been pressed the FMS and flight plan will be updated If the crew wishes to fly a particular heading until intercept this can be accomplished by selecting that heading in the MCP heading selector window If LNAV is armed LNAV will engage and begin tracking the inbound course when the aircraft approaches the intercept course entered into 6R PMDG 737NG AOM Inserting A Navigation Fix During flight it may become necessary to insert a new navigation fix into the flight plan in order to comply with ATC procedures or instructions This task is also accomplished using the LEGS page in the FMC CDU Enter the name of the fix directly into the scratchpad The fix identifier is then up selected into the ACT RTE LEGS page at the position that is desired along the route of flight When up selecting a navigation fix to an existing flight plan the FMC will add the new fix to the line selected and move all following navigation fixes down in the sequence When inserting fixes into a f
38. existing navigation fixes which are being used to describe the PB PB waypoint BBB B represents the bearing from each existing fix The decimal point is optional in the bearing entries LEGS 1 2 i 0 781 FLZED 5 W 0 781 FLz50 FL250 Once entered into the scratchpad the PB PB waypoint can be up selected into the route by pressing desired LSK The PB PB waypoint is described in the route by the format XXXSS where XXX represents the first three letters of the first waypoint s name and SS is an FMC assigned sequence number In the example above HFD01 PB PB waypoints can be defined from any fix within the navaid database Along Track Waypoints Along track waypoints are commonly used to mark a descent or climb restriction that is issued by ATC in reference to a navigation fix that exists along the route of flight Revision 1 2 15NOV03 0 781 FLz52 u rs81 FL260 DO NOT DUPLICATE Along Track Waypoints are the simplest of the custom waypoints because they are entered exactly as issued by ATC For example if ATC were to issue the following climb restriction best rate of climb until ten miles beyond HNK the crew simply enters the restriction into the FMC as an along track fix by using the following format FFF DD Note The above should be replaced with either a sign signifies beyond the waypoint while a signifies before
39. fied fix It is always helpful to keep in mind that for purposes of the FMC it must always intercept a course TO a fix Intercept Course entries are useful for complying with SID and STAR transitions or for complying with an ATC instruction such as fly heading 090 until intercepting the 230 degree radial of BTY Fly that radial to BTY then the remainder of route as filed Any time ATC or published route procedures call for the crew to intercept a specific course or heading to from a navigation fix the Intercept Course entry can solve the navigation problem via the FMC IPUMY N36W115 050 Radial BTY An Intercept Course entry is performed on the LEGS page Enter the navigation fix that is desired into the scratch pad the upselect Revision 1 2 15NOV03 DO NOT DUPLICATE the fix to the 1L LSK This in effect tells the FMC CDU that you are planning to cross that fix as the next point along your flight path If you were to press the EXEC key at this time the FMS will provide you with a routing directly from your present position to the fix displayed at 1L This would be a Direct To entry The clearance provided requires that a specific radial be tracked toward the fix however so an additional step is required ABEAM PTS gt INTC CRS O72 gt 6R will show the current course to the desired waypoint If a different intercept course is desired it should be entered into the scratchpad th
40. g MSFS It should be noted that the PMDG FMC uses realistic algorithms to compute the effect of wind conditions and reported wind conditions on the planned descent profile Some weaknesses in the modeling of weather transitions within MSFS may cause rapid shifts in reported wind speed and direction which may have the effect of changing the predicted descent path For this reason PMDG does not recommend using this airplane with any third party weather generation software as we have found large variances in manner in which these software packages attempt to manage sudden wind shifts within MSFS thus causing unreliable descent angle and wind effect prediction DO NOT DUPLICATE Navigation Accuracy The FMS automatically selects and tunes VHR Omni Range VOR and Distance Measuring Equipment DME in order to constantly update the position and speed of the aircraft This information is used in conjunction with the Inertial Reference System IRS and Global Positioning System GPS to ensure accuracy in all phases of flight The FMS will primarily attempt to GPS position information then combine range information corrected for slant range from two separate DME locations and finally position from three Inertial Reference Units IRUs If no usable VOR DME information is available the FMS will monitor aircraft position based on IRS GPS data only until the aircraft is determined to be in a location where DME VOR information is o
41. grated Flight Management System that is comprised of the following core equipment Autopilot Flight Director System Flight Control Computers Flight Management Computer CDUs Autothrottle Inertial Reference System Navigation Equipment Together these systems provide a fully automatic full regime flight control and information display system The FMS is capable of providing flight control from takeoff to rollout There are two primary tools that crewmembers use to interface with the FMS the Flight Management Computer Control Display Units FMC CDU and the Autopilot Mode Control Panel MCP The backbone of the FMS is the Flight Management Computer Control Display Unit The FMC CDU performs the following major functions Flight Planning Navigation Computation Navigation Display Guidance Commands pitch roll and thrust e Interface to Inertial Reference System IRS e Performance Optimization e Thrust Limit Calculation e Autothrottle Control The FMC takes input and sensory information from many aircraft systems including the following Flight Control Computers FCCs Air Data Computer Fuel Quantity Indicating System Weight and Balance Computer VOR DME ILS Receivers Inertial Reference System PMDG 737NG AOM DO NOT DUPLICATE Digital Clock Mode Control Panel FMC Database FMC CDU Crew inputs Input from these systems is combined to conduct comprehensive aircraft control calculations Output fro
42. has changed from 1 1 to 1 2 this indicates that a second page is now available and can be accessed using the NEXT PAGE key on the FMC CDU Pressing the NEXT PAGE key will display RTE page 2 2 as follows A OSS h The RTE page 2 2 is where crewmembers manually enter the route of flight This is accomplished by typing fix names individually into the scratch pad then uploading them in order to the right LSKs The RTE page 2 2 should be viewed as two distinct columns based on their titles VIA and TO The TO column is where individual fixes along the route of flight are entered The VIA column describes how to get there For DO NOT DUPLICATE FMC USER S MANUAL example assume that the route of flight to be used is described as follows Depart KIAD and fly direct to WOOLY intersection then follow V214 to the SWANN intersection WOOLY is located approximately 20nm north of KIAD and V214 is a route that has two distinct turns while crossing a half dozen fixes and VORs before reaching SWANN intersection Since KIAD has already been entered as the origin airport it does not need to be entered again into the route Type the first fix name WOOLY into the scratch pad and upload the fix to the 1R LSK The FMC CDU will check the database for the intersection name that you have entered and if it is found to be unique it will populate the fix name to the appropriate place on the screen Depending upon
43. ht weight of the airplane Selecting a lower thrust rating will reduce acceleration forces deck angle during the climb and result on lower rates of wear and tear on the engines over time When the N1 LIMIT page is brought up during preflight planning an lt ACT gt cue is placed in he left center column of the display in a position to indicate that full takeoff thrust is selected Pressing either the 2L LSK or 3L LSK will move the lt ACT gt prompt down to the associated line Revision 1 2 15NOV03 DO NOT DUPLICATE When the takeoff phase of flight is active the climb thrust cue will show lt SEL gt to indicate that the thrust mode is not active but is selected to become active at the thrust rating associated on the right side of the display For example in the image shown above a TO 1 derate to 22 000lbs of thrust has been selected with a CLB 2 derated thrust performance The expected engine N1 percentages for the selected takeoff and climb given current conditions are displayed in the upper right corner of the N1 LIMIT page After takeoff and climb thrust rates have been selected the TAKEOFF gt prompt at the 6R LSK will complete the preflight process TAKEOFF REF Page The Takeoff page is where final aircraft takeoff configuration is programmed into the FMC CDU TAKEOFF REF 22EHi 91 FAL 7 RIA PR The following information is displayed by the TAKEOFF REF page FLAPS The flap sett
44. icate that it has been selected by the crew Selection of a departure runway before selection of a SID cause the FMC to display Revision 1 2 15NOVO3 8 26 FMC USER S MANUAL only those SID that are compatible with the selected runway To deselect a runway simply press the LSK second time If the DEPARTURES page displayed is for the active route or for the airport of origin selecting a SID or runway will automatically insert the appropriate fixes into the flight plan and update the runway selection on the RTE page To alert the crew that these changes have been made and to allow for verification the EXEC key will illuminate Pressing the EXEC key will confirm the selections but a route discontinuity will be inserted into the route to ensure that the route is verified by the crew prior to being flown ARRIVALS Page STAR selection is made by pressing the appropriate lt ARR prompt on the DEP ARR INDEX page Pressing the lt ARR prompt key will display an ARRIVALS page for the selected airport The ARRIVALS page allows the crew to select the STAR and associated runway to be used A sample ARRIVALS page is shown below BIGIF 1 BIGJA 1627 2 E RIGIE 5278 5 B BIGJC Standard Terminal Arrival Route The STARS are listed on the left side of the display at 1L through 5L A STAR can be selected by pressing the associated LSK Once a STAR is selected a SEL indicator will appear next t
45. imb rate given the current aircraft configuration can be attained by pressing the 5L LSK at the MAX RATE prompt Maximum Climb Angle The speed and climb gradient that will yield the maximum climb angle given the current aircraft configuration can be attained by pressing the 6L LSK at the MAX ANGLE prompt In the event of an engine failure the MAX ANGLE speed will be replaced with the engine out maximum altitude figure for the current aircraft configuration Engine Out PMDG 737NG AOM USER S MANUAL 8 41 Data Not currently modeled in the PMDG FMC In the event of an engine failure use the maximum angle of climb prompt Engine Out Climb Mode NOT MODELED Selecting the ENG OUT gt prompt at 5R will result in FMC calculation of engine out speed schedules performance predictions and guidance When selected the FMC will detect which engines are not operating and adjust performance predictions and guidance accordingly If the FMC detects that all engines are operating then performance predictions for a single outboard engine failure will be used TO T C To Top of Climb describes the estimated distance and time of crossing in UTC for the Top of Climb based upon the final cruise altitude as programmed into the FMC CDU FMC Climb Profile Logic The FMC is programmed for a default climb logic to select a 250 knots climb to 10 000 feet followed by an economy climb to cruise altitude The crew may modify thi
46. ing for takeoff should be entered into the scratch pad and upselected to the 1L LSK Thrust Setting note Displayed as 24KN1 22KN1 20 1 etc depending upon thrust setting selected for takeoff The expected N1 RPM percentage for takeoff and climb id displayed at the 2L LSK These entries cannot be modified except by changing the PMDG 737NG AOM thrust setting selected on the 1 LIMIT page CG As described earlier CG and Trim settings described within the FMC are not yet functional within the PMDG FMC Future updates are planned to bring these capabilities online in a realistic fashion V1 Vr V2 The Next Generation 737 does not automatically populate the FMC with V Speeds based on crew input to the FMC CDU V Speeds are normally entered manually into the TAKEOFF REF page to control the speed bugs on the Primary Flight Display To simplify the process of looking up takeoff performance data PMDG has automated the process for crewmembers Simply click on the 1R 2R and 3R LSKs to automatically populate the correct V1 Vb and V2 speeds to the FMC Helpful Hint The Next Generation 737 isa small yet powerful airliner It is not uncommon to find V1 and Vr speeds that are identical when operating the airplane at low takeoff weights The selected speeds for takeoff are affected by many things including the runway selected climb clearances selected takeoff thrust aircraft weight and desired flap setti
47. ion 1 2 15NOV03 DO NOT DUPLICATE places required entry boxes in all locations where information is needed f ewcre PERF INIT prp nu 28 75 700000 5 DE CRZ qr quaa RESERVES 00 0 COST INDEX Note title line on this page displays PERF INIT until the initialization is completed at which point the title changes to ACT PERF INIT to indicate that it is ACTIVE The fields displayed on the PERF INIT page are as follows GW CRZ CG Aircraft Gross Weight in thousands of pounds must be entered at the 1L LSK followed by the cruise flight CG percent of MAC Mean Aerodynamic Chord setting Note Currently functions and functions are not modeled in the PMDG FMC These figures are currently static but will eventually be updated to make them fully functional Aircraft Gross Weight must always equal the aircraft Zero Fuel Weight plus the weight of boarded fuel Normally the gross weight figure that needs to be entered into the GW CRZ CG line is reported to the crew by the airline load planner who has calculated aircraft mass based on the items loaded and passengers fuel boarded To simulate this process PMDG has allowed for manual crew entry based on crew flight planning or crewmembers may alternately press the 1L LSK to automatically populate the current aircraft gross weight to the display PMDG 737NG AOM When the Gross Weight has been c
48. ired navigation fix LSK Speed Constraints Speed constraints can be used by the crew to comply with ATC assigned speed constraints directly associated with a particular navigation fix E g Cross HFD at 250 knots Speed constraints must always be entered in association with an altitude constraint and are entered numeric format from 100 to 400 knots Calibrated Air Speed followed by the indicator which separates the speed constraint from the altitude constraint e g XXXIFL 180A ABOVE and BELOW modifiers are not possible for airspeed constraints According to the sample page shown the flight plan calls for crossing WOOLY at 250 knots at 9000 feet then accelerating to 275 knots while crossing BAL at 15000 feet Speed information entered into the RTE LEGS page will affect VNAV operation and altitude information will serve to feed the FMC with vertical planning information even though it is still the crew s responsibility to manage the altitude assignment and altitude change assignments from ATC Helpful Hint When updating the speed and or altitude constraints the following formats are usable FL180 updates altitude only 18000 updates altitude only 310 FL180 updates speed and altitude 310 18000 updates speed and altitude 310 updates speed only DO NOT DUPLICATE The RTE LEGS page and the ND Coupled with the navigation display the RTE LEGS page becomes a powerful tool that can be u
49. is true then 4R will be blank To satisfy the prompt boxes at line 4R the reference latitude longitude position can be entered directly into the scratch pad then line selected to 4R or by selection of the LAST POS or REF AIRPORT reference position via the scratch pad Helpful Hint The IRS is not currently modeled in the PMDG 737 As such it is not necessary to pass the current airplane location to the FMC via the POS INIT page of the FMC Once the PMDG 737 IRS is installed this function will become necessary by selecting the ROUTE gt prompt from the POS INIT page The fields displayed on the RTE page are as follows ORIGIN The airport of origin for the flight Valid entries include any four letter ICAO airport code Type the desired entry into the scratch pad using the FMC keyboard then upselect to the ORIGIN by pressing the 1L LSK Note that the boxes indicate that origin and destination are required entries DEST Airport of destination Valid entries include any four letter ICAO airport code CO ROUTE To load a previously saved flight plan into the FMC CDU simply type the name of the saved flight plan into the scratch pad and upload it to the 2L LSK GMT MON DAY Line 5L displays the current time in GMT according to the airplane s clock RTE Page The RTE page is used to program the route to be followed during flight On this page information such as origin destination company route n
50. l other distance indications represent the distance between the previous and next legs of the flight plan Speed Altitude Predictions or Constraints When the FMC flight plan is fully initialized the FMC will calculate a set of predicted altitude and speed values for each leg of the flight plan These predictions appear in small font in lines 1R through 5R The FMS will provide these predicted altitude and speed values for each navigation fix unless the crew manually enters constraint values into the flight plan Constraint or desired values may need to be entered by the crew in order to adhere to Revision 1 2 15 8 28 FMC USER S MANUAL published approach procedures or ATC clearances Constraint values are entered by typing them manually into the scratchpad then up selecting them to the desired flight plan leg Altitude Constraints The use of altitude constraints allows the crew to enter either ATC assigned waypoint altitude constraints or to program waypoint constraints assigned by published approach procedures Altitude constraints are entered by direct entry into the scratchpad the up selecting them to the desired line of the flight plan The available altitude constraints are as follows constraints e AT OR ABOVE constraints AT OR BELOW constraints AT constraints are used to indicate that the airplane must be at a specific altitude when crossing the associated fix Entry of AT constr
51. l approach planning phase of the flight TRANSITIONS In some airport environments it is necessary to use a TRANSITION route to move airplanes between the end if a SID and the route of flight or the end of the route of flight and the beginning of a STAR In cases where transitions are defined the DEP INDEX and ARR INDEX pages will also list the available transitions Transitions like the SID STARS RUNWAY APPROACHES will cause the FMC to display only those SIDs STARS or runways with which they are compatible at the time they are selected PMDG 737NG AOM USER S MANUAL 8 27 REVIEWING THE ROUTE OF FLIGHT Overview After a route is loaded and a departure runway SID and if desired STAR and landing runway are selected it is always convenient to review the flight plan in detail to ensure that it is accurate The Next Generation 737 includes two primary tools to review a flight plan in detail e FMC CDU LEGS pages e Navigation Display Used in conjunction with one another the 737 provides a powerful suite of tools to ensure that route entry into the FMC is accurate and matches the clearance received by the crew prior to departure RTE LEGS Page The RTE LEGS page is accessed by pressing the LEGS key on the FMC CDU The RTE LEGS page is similar to the RTE pages in that it displays the route of flight as entered into the FMC CDU The RTE LEGS pages vary however in that they do not display airway jet ro
52. l profile for the selected performance mode even if ECON has been overridden by the crew During the climb an optimum Mach speed target and a corresponding thrust target are computed by the FMS with the speed target transmitted to the vertical guidance function of the autoflight director system The AFDS will then generate commands to the elevator in order to maintain the correct pitch for the required speed Thrust setting commands are delivered to the autothrottle servos by the FMS and used in conjunction with the pitch setting commands to maintain the optimum speed and climb as directed by the FMS During cruise an optimum Mach setting is computed and thrust setting commands are delivered to the autothrottle During descent a vertical path is computed based on the flight plan entered into the FMC CDU The FMS will evaluate expected wind conditions aircraft speed altitude position relative to the planned end of descent point and any intermediate altitude or speed constraints between the aircraft and the end of descent point This information will be passed to the AFDS for pitch based speed and vertical speed control and the autothrottles for vertical speed and thrust management In ideal conditions an idle thrust optimum descent profile is flown however in many cases thrust and pitch will be varied to account for wind conditions or to ensure proper tracking of the vertical descent profile Important Note Regardin
53. licting in controlled airspace To do this SIDs are traditionally linked to specific navigation fixes across which departing aircraft fly For example a major international airport may have as many as a few dozen pre defined fixes to across which all departing traffic must cross Arriving traffic into an airport will be treated similarly with aircraft being routed along specific routes to bring them into position from where they can be inserted into the final approach corridor for specific runways By publishing these procedures air traffic control is able to quickly and efficiently assign aircraft to known routes with very little radio work or interaction with the flight crew In order to understand how the FMC CDU manages information related to SID STARs it is helpful to imagine the flight linearly The first navigation fix that the airplane will use is a runway Thus the FMC CDU will need to know which runway it the aircraft will depart from The FMC CDU will also want to know the ROUTE OF FLIGHT that is being used to reach the destination Route entry is covered earlier in this chapter At the end of the flight the FMC CDU will want to know what runway the airplane will land on A SID and sometimes a TRANSITION is used to show the FMC CDU how the airplane will get from the departure runway to the ROUTE OF FLIGHT At the other end of the flight TRANSITION sometimes and a STAR is used to show the FMC how it
54. light plan the FMC will display a set of prompt boxes in the line immediately following the new fix along with the message ROUTE DISCONTINUITY This alerts the crew that they must confirm for the FMC which navigation fix will follow the newly added fix Bon j MOD RTE LEGS 1 2 0 781 FLZED fi MM 0 781 FLED 781j FLZ DISCOHTIWUITY D z81 FL250 To confirm the continuation of the route the waypoint identifier for the next fix in the desired route sequence should be down selected to the scratchpad by pressing the PMDG 737NG AOM DO NOT DUPLICATE FMC USER S MANUAL 8 35 associated LSK This fix identifier can then be up selected to the line containing the disconnect prompt boxes The FMC will then re sort the flight plan to allow the updated routing MOD RJE LEGS 1 2 D z81 FLzEO i FLZ 0 781 FLzb50 D 51 FLzEO 0 781 FLz50 Pressing the EXEC key will confirm the change or pressing lt ERASE will cancel the Intercept Course selection Once the lt EXEC key has been pressed the FMS and flight plan will be updated Deleting a Navigation Fix Navigation fixes can be deleted from the active flight plan using similar methods From the RTE LEGS page use the NEXT PAGE PREV PAGE keys until the desired fix is displayed on the page then press the DEL key on the FMC MCDU keypad The DELETE prompt will appear in the scratchpad indicating that the
55. location by pressing the FLT PLANS prompt at LSK This will present you with a list of flightplans that are currently saved in your PMDG FLIGHTPLANS directory as follows m Pu Eu PLAN SUMMARY 1 1 1 Revision 1 2 15 8 20 FMC USER S MANUAL Saved flight plans cannot be loaded from this page as the page is for display purposes only From this page you can downselect to the scratchpad the name of the flight plan that you wish to load and activate within the FMC CDU To load and activate the flight plan you simply return to the RTE page and upselect the flight plan name to the Company Route prompt as follows i vel SR dest KIFE CO ROUTE FLT HO KTADKIFROOL PHOG OOL RUNWAY DLL REVERSE PERF INIT gt This will load the saved flight plan and trigger the ACTIVATE gt prompt so that crewmembers can confirm the route and EXEC it into active memory Note that when the route has been successfully loaded activated and executed the RTE page title changes to ACT RTE as displayed above ACT RTE indicates that the route is ACTIVE PERF INIT Page The performance initialization page allows entry of critical aircraft performance factors needed by the FMS in order to accurately predict aircraft performance It is easy to determine which items remain to be entered as the FMC Revis
56. lting in a variable rate of climb or descent based upon conditions When vertical speed is the controlled factor the AFDS will issue commands to the elevator for vertical speed control and the AFDS will adjust the autothrottle to maintain speed resulting in a fixed rate of climb descent and variable speed based upon conditions Thrust Management The FMS thrust management function is capable of performing autothrottle control law calculations based upon commands from the navigation function as well as direct crew input from the FMC manual adjustment of throttle position or AFDS autothrottle commands The autothrottle control law function provides automatic N1 equalization in all modes of flight as well as thrust limit protection and N1 thrust requirement calculations to maintain MCP or AFDS speed and thrust settings Autothrottle modes can be selected or overridden by the crew as required Revision 1 2 15NOVO3 8 14 FMC USER S MANUAL PRE FLIGHT INITIALIZATION PROCESS Overview When power is first applied to the aircraft the FMC CDU conducts a full self test and is then ready for preflight initialization The preflight portion of FMC operation prepares the flight management system with information that is needed in order to manage flight Note Tremendous effort has been placed into the development of a high fidelity FMC CDU interface AFDS MCP and predictive algorithms for flight planning and conduct A
57. m the FMC CDU is sent to the following systems e Integrated Display System PFD amp ND e Autopilot Flight Director System e Mode Control Panel e Autothrottle Servo e Electronic Engine Controls Launching the FMC CDU The Next Generation 737 cockpit has two FMC CDUs mounted at the forward end of the throttle pedestal To closely model the functionality of the 737 Next Generation cockpit the PMDG 737 is capable of displaying two FMC CDUS on the screen at one time To activate the captain s FMC CDU press the F key on the panel switch device LIFAETERESZIUBSLIE Revision 1 2 15 8 4 FMC USER S MANUAL The second FMC CDU can be activated on screen by selecting it from the VIEWS PANELS menu within Microsoft Flight Simulator A Camery ol Flight Full Screen BLTSENTER i Ar Both FMC CDUs be operated from within the Virtual Cockpit as well Each FMC CDU is linked to it s own Flight Management Computer mounted in the aircrafts electronics bay Each FMC is comprised of five processors and integrates data received from the air data sensors crew input navigation radios engine and fuel sensory systems inertial reference system and internal navigation database This information is then used to provide steering commands to the autoflight systems in both roll and pitch modes as well as to the autothrottle servos Navigation and positional data is pro
58. mption R 5 PAGO RR 265 LB47z DTG G2 1900 179 19072 418 20012 To 19312 331 2709 25 STATUS EXEC Key EXEC key is only active when the light bar contained within the key is illuminated The key is used to confirm and changes to the vertical and lateral route plan At any time the EXEC key is active an lt ERASE prompt will appear on the MCDU display in order to facilitate cancellation or deletion of a proposed action Revision 1 2 15NOV03 DO NOT DUPLICATE N1 LIM Key The N1 LIMIT page allows for the selection and control of engine performance limits during takeoff climb cruise and descent Hl LIMIT d 81 7 81 7 E CLE TE gt CLB 1 2 208 DEBATE Sa NE 159C 2 gt E 2 PERF INIT gt FIX Key The FIX page allows the crew to enter desired visual waypoints onto the Navigation display by defining them in relation to known points within the Navaid database The fixes are no required to be a part of the active flight plan and are displayed as green information on the display NEXT PAGE PREV PAGE Keys The NEXT PAGE and PREV PAGE keys are used in conjunction with MCDU displays which occupy more than one page on the MCDU display Multiple page MCDU displays are indicated by the use of page numbering in the upper right hand corner of the MCDU display PMDG 737NG AOM USE
59. n FMC is not simply a sophisticated GPS but should be viewed as a highly sophisticated scientific instrument The complexity of mathematics contained in real FMCs has been reproduced here to an extensive degree using actual engineering methods and principles In some cases we have not included certain functions within the FMC CDU as they were not deemed to be reasonably usable within the confines of MSFS As we continue development of the airplane and it s systems some new functions will of course b added Please keep your PMDG 737 up to date by ensuring you always have the most current Service Updates installed IDENT Page When first powered the FMC will display the IDENT page IUENT MODEL EMG RATING 24k f DATA e ACTIVE AIRAC 0304 Pn VF IAMA D3 M OP PROGRAM PMDG 3 MG SU CULO 4 Revision 1 2 15NOV03 The IDENT page is easily identified by the IDENT title page line at the top of the display Screen Helpful Hint Pay close attention to the information that appears in the TITLE LINE of the FMC CDU screen You will find that the pages are intuitively named and learning the name of pages with specific information will help you quickly master the sophisticated FMC CDU DO NOT DUPLICATE The data displayed on the IDENT page identifies the aircraft by type engine thrust rating navdata cycle FMC Operating Program The data appearing on this page should
60. nce again PMDG 737NG AOM available for position and velocity cross checking The FMS navigation management system will also compute and provide true and magnetic track information drift angle magnetic variation for the current aircraft location and vertical flight path information The FMC automatically determines which VOR DME combinations will yield the best result given their position relative to the aircraft Guidance Management Two dimensional flight path management is available along an FMC programmed flight path in either the vertical navigation mode or lateral navigation mode LNAV Both of these modes are selected by using the LNAV VNAV buttons on the Autopilot Mode Control Panel MCP When used in conjunction with one another the FMS is capable of providing fully integrated three dimensional flight path management along the FMC defined flight path The LNAV guidance function issues steering commands to the AFDS in order to keep the aircraft navigating correctly along the programmed route of flight Deviations from the center of the desired flight track are corrected using intercept procedures and flight track adjustments Normal lateral flight path deviation should not exceed 0 1nm in most phases of flight In all phases of an LNAV managed flight the FMS will monitor cross track error which is defined as the lateral distance separating the aircraft from it s desired path of flight Roll an
61. nd will illuminate the EXEC key on the FMC CDU to indicate that the route of flight change must be EXECUTED in order to take effect MOD LEGS 1 1 n 51 FLz70 0 781 FLZ70 240 1078 During the modification there are some important changes to notice on the LEGS page of the FMC First when the desired fix is uploaded to the 1L position the FMC recognizes that a modification has been made to the route As such the TITLE LINE of the page changes to MOD RTE LEGS to indicate that the route has been modified but is not yet active because it has not been EXECUTED Additionally the FMC will offer an ABEAM PTS gt prompt at the 5R LSK and an INTERCEPT CRS at the 6R LSK Revision 1 2 15 8 34 USER S MANUAL To intercept a specific inbound course to a fix Interecept the course 080 TO BOS for example the crewmember simply needs to enter the desired course TO the fix at the 6R LSK This will cause the FMS to calculate and fly an heading to intercept the inbound radial specified in the INTC CRS prompt Pressing the EXEC key will confirm the change or pressing lt ERASE will cancel the Direct To selection Once the lt EXEC key has been pressed the FMS will be updated to fly Direct To the desired fix Intercept Course An intercept course is similar to the Direct To operation An intercept course instructs the FMC to intercept a particular course that should be followed TO a speci
62. ngs If any of these variables are changed after the V Speeds are selected into the FMC you will receive a V SPEEDS DELETED message in the FMC CDU scratch pad and PMDG 737NG AOM DO NOT DUPLICATE FMC USER S MANUAL 8 23 the speed bugs will be removed from the primary flight display This is to prevent the crew from using the incorrect speeds after a change has been made that will affect takeoff performance When V Speeds are correctly selected the aural warning system on the airplane will automatically call out V1 and V2 speeds The Pilot Not Flying should call out the V1 speed at the appropriate time The TAKEOFF REF page is normally that last page that is used for preflight and departure If when loading this page the PREFLIGHT COMPLETE descriptor is not seen across the center of the screen then important data for the FMC CDU preflight process must still be entered Return to the INIT REF page and review all entries to ensure that the missing data is found entered and a PREFLIGHT COMPLETE message is received on the TAKEOFF REF PAGE Revision 1 2 15 8 24 USER S MANUAL ARRIVAL DEPARTURE PROCEDURES Overview Many large airports throughout the world have standardized arrival and departure procedures in order to maximize aircraft flow into and out of the airport terminal control area These procedures are know as Standard Instrument Departures SID and Standard Terminal Arrivals
63. not change on a regular basis but it is important that this preflight check be accomplished in order to protect against system faults or improper system reloads during updates and or changes to the FMS or FMC navdata information The following information is provided on the IDENT page MODEL The airplane model is displayed in line 1L ENG RATING The thrust rating of the engines current installed is displayed in line 1R DATA current navdada cycle and effective dates are displayed PMDG has selected Richard Stefan s venerable AIRAC navdata cycle database system to power the PMDG FMC This decision was made based on the wide acceptance of this navdata system within the simulation community and the dedication and accuracy of Richard Steffan s work The navdata cycle information is displayed in the NAV DATA line and the active dates for the database are displayed under the ACTIVE title on the right side of the screen PMDG 737NG AOM Helpful Hint If you see the phrase INSTALLATION REQUIRED under the NAV DATA title this means that you do not have the AIRAC navdata information properly installed and your FMC CDU will not operate correctly To install the navdata information correctly 1 Got to www navdata at 2 Download and install the 767PIC PMDG All In One installer 3 Install the navdata into the following directory FlightSimulator FMCWP NA VDATA replace FlightSimulator with the lo
64. o the associated STAR to indicate that it has been selected by the crew When a STAR is selected the FMC CDU will change the list of available approaches runways on the right side of the Revision 1 2 15NOV03 DO NOT DUPLICATE screen to reflect only those approaches runways that are compatible with the selected STAR To deselect a STAR simply press the LSK a second time Approaches The available approaches for the selected airport and STAR are listed at 1R through 5R Pressing the associated LSK will illuminate a SEL indicator on the selected approach to indicate that it has been selected by the crew When an approach runway is selected the FMC CDU will change the list of available STARS on the left side of the screen to reflect only those STARs that are compatible with the selected approach runway To deselect a STAR simply press the LSK a second time If the ARRIVALS page displayed is for the active route or for the airport of destination selecting a STAR or an approach will automatically insert the appropriate fixes into the flight plan To alert the crew that these changes have been made and to allow for verification the EXEC key will illuminate Pressing the EXEC key will confirm the selections Selection of an ARRIVALS procedure does not need to be accomplished during the pre flight process but is included here for balance and clarity Arrival procedures are normally selected during the initia
65. oard the aircraft any time a route edit has been made TO T D Line Five of the display includes planning information to display the distance and fuel quantity on board the aircraft when reaching the Top Of Decent point for the flight plan The estimated time of crossing for the TOC is also displayed WIND The current wind conditions as calculated by the FMS is displayed at the 6L LSK This information can be downlselected to be added to the descent forecast if desired PMDG 737NG AOM USER S MANUAL 8 49 second PROGESS page is reached by error is displayed when the aircraft is in the using the NEXT PAGE PREV PAGE keys descent phase of flight and is displayed below PROGRESS TAILWIND 24 ET T WHD SAT ISA DEW i j4 C OFC ERROR WERT DEV PET TAS The PROGRESS 2 2 page contains additional information on the wind temperature and navigation accuracy of the aircraft Line one contains the calculated tailwind headwind and crosswind component described in knots This information is a vector breakdown of the wind information contained on the PROGRESS 1 2 page Additional information includes WIND Line 2 displays the current wind conditions at the location and altitude as calculated by the FMS SAT ISA DEV The 2R LSK displays the current SAT and it s deviation from ISA conditions Line 3 displays both cross track error XTK ERROR and verti
66. onfirmed it is displayed in large font FUEL The FUEL indicator displays the current weight of fuel boarded in thousands of pounds Total Fuel Quantity is sensed by the Fuel Quantity Indication System FQIS and reported to the FMS If the FQIS is deactivated or inoperative prompt boxes will alert the crew to enter fuel quantity manually in line 2L ZFW The aircraft zero fuel weight is displayed in line 3L Weight is displayed in the thousands of pounds with an optional decimal point Prompt boxes alert the crew that the ZFW must be entered manually however confirmation of GR WT and FUEL fields will automatically update the ZFW field Again optionally pressing the 3L LSK will automatically populate this information to the FMC CDU RESERVES The reserve fuel weight is displayed at line 4L Prompt boxes alert the crew that a reserve fuel weight in thousands of pounds must be entered Even if no reserve fuel is to be carried the crew must enter a figure 0 or greater FMC USER S MANUAL 8 21 such as excessive headwinds higher than normal fuel consumption or an undetected fuel leak Helpful Hint The value entered for fuel reserves is used by the FMS to determine when there is no longer sufficient fuel remaining to reach the programmed destination with the desired amount of reserve fuel remaining Lowering this figure will cause the warning to cease or lowering current fuel burn rates will also cease the warning
67. op of Descent WPT ALT Not currently modeled DES NOW When the aircraft is not currently descending but the MCP altitude selector is set below the current altitude and the aircraft is within 50nm of the Top of Descent the DES NOW prompt will be displayed at GR The DES NOW prompt deletes all climb cruise constraints and commences an early descent The rate of descent will be approximately 1000 feet per minute until the aircraft intercepts the originally planned vertical descent path which would have commenced at the top of descent mark Descent Methods There are two methods that can be used to plan descents in the Next Generation 737 Speed based descents and path based descents PMDG 737NG AOM FMC prefers to calculate a path that will allow for a throttle idle descent path Based on current conditions and any wind information entered into the DES FORCAST page the FMS will calculate a descent path that will allow for the most economical power idle glide down from cruise flight This calculated descent is called a Descent Path At the top of the previous image the title line contained the title ECON PATH DES This indicates that the descent method being used bt the FMC is the descent path profile that will give it the throttles idle descent path second descent method is also available depending upon crew preference A SPEED based descent will allow the crew to plan a descent at a specific spe
68. ove all items in the scratchpad simply press and hold the CLR key for one second PMDG 737NG AOM USER S MANUAL 8 7 FMC DISPLAY PAGES ACCESSED WITH MODE KEYS Overview The PMDG 737 The Next Generation uses an FMC that has fifteen mode keys available on the FMC CDU These keys provide direct access to a number of functions within the FMC that will be used by the crew during various phases of flight CLE CRZ DES T pEP I LEGS ARR HOLD PROG EXEC n S 2 25 FIX NEXT PAGE 1 MENU Key The MENU key provides access to the FMC and other aircraft sub systems that use the FMC CDU for input or control When pressed the MENU key brings up the following display screen on the FMC CDU HEN pe SALT NC ARS xHL Lr lt DE CAL T ACARS lt LOGOFF In the current version of the PMDG FMC not all functions are active from this screen as evidenced by the grayed out items in the menu Currently only the FMC function is available by the FMC CDU but ACARS functionality is planned If pressed during flight the lt FMC prompt will bring up the last displayed FMC page When the MENU page is active a STATUS prompt will be shown adjacent to each FMC CDU function PMDG 737NG AOM DO NOT DUPLICATE lt ACT gt Indicates that the sub system is currently active and operating lt HLD gt Indicates that the pilot has selected the sub system but the FMC CDU has not
69. over the nose visibility in congested airspace e Reduced climb angle reduces the rate of pitch over if the aircraft needs to level at a low altitude initially after takeoff CLB 1 reduces N1 by approximately 396 while the aircraft is below 10 000 feet and then gradually adjusted thrust upward so that both engines are operating at full thrust by the time the aircraft reaches 15 000 feet CLB 2 reduces N1 by approximately 696 while the aircraft is below 5 000 feet and then gradually adjusts thrust upward so that both engines are operating at full thrust by the time the aircraft reaches 15000 feet Since both reduced thrust climb modes operate only below 15 000 feet the CLB page should be used to monitor engine thrust when below 15 000 when climb thrust is reduced Once over 15 000 feet use the N1 LIMIT page for monitoring engine thrust Helful Hint Use the CLB and N1 LIMIT pages to determine what power settings should be used when hand flying the aircraft or when flying the aircraft with the autothrottles selected off or deferred DO NOT DUPLICATE Revision 1 2 15 8 38 FMC USER S MANUAL When flying a departure procedure that requires the aircraft be leveled at a low altitude immediately after takeoff use of CLB 2 is generally a good technique to reduce the sensation of pitch over that is experienced by passengers when the aircraft is operated at higher power settings In Flight
70. point can be described as being on a bearing of 180 degrees and 50 miles from the XYZ VOR PMDG 737NG AOM PBD waypoints be defined from any point in the navigation database The proper format for entering a PBD waypoint into the scratchpad is as follows PPPPPBBB DDD Where is the existing navigation waypoint 1 to 5 alphanumeric characters BBB B is the bearing and DDD D is the distance The decimal place is considered to be optional for both bearing and distance 2 LEGS 1 2 rfB81 FLZED FEL y FLzB50 0 781 FLz50 81 FLZ 0 781 FL250 PBD bearing entries from 0 to 360 degrees and distance entries from 0 to 999 miles valid Once entered a PBD is displayed in the route as PPPSS where PPP represents the first three characters of the navigation fix and SS represents an FMC assigned code number In the example above the fix will be displayed as HNK01 and the FMC CDU will insert a route disconnect that needs to be resolved and EXECUTED by the crew Map LEGS 1 2 0 781 FL2e0 0 781 PL250 RHITE DISCONTIRUITY O78 FLzEO 0 751 PMDG 737NG AOM DO NOT DUPLICATE FMC USER S MANUAL 8 31 Latitude Longitude Waypoints Latitude Longitude waypoints are pilot entered waypoints defined by a specific geographic reference in a latitude longitude format The proper format for entering a Latitude Longitude waypoint into th
71. rrent aircraft location on the airfield and the temperature that is expected at the runway threshold the expected threshold temperature can be added so as to ensure that an accurate estimate of thrust ratings can be computed by the FMS DO NOT DUPLICATE Outside Air Temperature The Air Data Computer measured OAT is displayed in the center of row 1 Thrust Limit Mode The currently selected thrust limit mode is displayed in small font in the header line for 1R displays 24KN1 in this image This header will change to match the current thrust rating that has been selected for the engines In addition the PMDG 737NG AOM N1 limit for this thrust mode is displayed large font at 1R Note that if CLB 1 or CLB 2 has been selected for the climb the N1 displayed at 1R will continue to by the full thrust rating for the engines in the given conditions Following are the available thrust limit modes TO 24K TO 1 22K DERATE 2 20K DERATE GA Go Around CON Continuous CRZ Cruise CLB Climb CLB 1 3 N1 derate CLB 2 6 1 derate Takeoff thrust and Takeoff thrust Derates Lines 2L through 4L show the available takeoff thrust limit modes which may be selected by the crew In order they are e TO Takeoff is the normal full takeoff thrust mode rated at 24 000lbs e TO 1 Takeoff 1 is derated to 22 000lbs e TO 2 Takeoff 2 is derated to 20 000lbs The takeoff thrust limit mode is selected by pressing the
72. ruise altitude The target speed will then be highlighted to indicate that it is active TURB 1 Not modeled The 1 that should be used in the event of entry into turbulent air is displayed at the 3L LSK This is the thrust setting that will provide the optimal turbulent air penetration speed given the current altitude and conditions FUEL AT The 4L LSK displays the FMS calculated planned landing fuel figure at the destination The number may vary slightly during climb and initial cruise while average fuel burn figures are higher than cruise fuel burn This prompt can be highly useful when selecting a higher lower than planned cruising altitude or modifying the route to destination or the destination itself Before EXECUTING the route modification return the the CRZ page and verify the planned fuel at landing given the new route destination altitudes PMDG 737NG AOM USER S MANUAL 8 43 OPT MAX Not modeled In the center of the display the Optimum and Maximum altitudes for the current aircraft weight and flight conditions are displayed These values can be used to ensure proper altitudes are being selected during the cruise portion of flight Note To be added along with active cost index calculation and STEP TO functionality in a future PMDG update TO T D To Top of Descent describes the estimated distance and time of crossing in UTC for the Top of Descent ENG OUT Not Currently Modeled In the
73. s climb profile via the RTE LEGS page In the event that the FMC cannot comply with the next altitude restriction programmed into the RTE LEGS page either due to rate of climb or speed related concerns the prompt UNABLE NEXT ALT will be displayed Helpful Hint If you receive the UNABLE NEXT ALT warning from the FMC it is almost certainly a result of trying to reach a higher altitude than is possible given the current climb gradient Often times adjusting the speed or planned altitude to cross a specific waypoint will cause the warning to cease PMDG 737NG AOM DO NOT DUPLICATE Revision 1 2 1 8 42 USER S MANUAL FMC CRUISE OPERATIONS Overview Use of the FMC for cruise flight operations greatly reduces en route pilot workload and simplifies the process of providing the greatest level of operating economy possible with the aircraft The Cruise capabilities of the FMC include fuel management engine out operations VNAV cruise modes and altitude step climb operations CRZ Page The CRZ page provides the crew with access to current and upcoming cruise profile information Information displayed in the CRZ page includes the current commanded cruise altitude cruise speed N1 target settings step climb size next step to fix next waypoint ETA and fuel optimum and maximum cruise altitude and engine out cruise setting information A sample CRZ page is shown below co hl ERZ ALT
74. sed to review the entire route of flight that has been entered into the FMC CDU PMDG 737NG AOM USER S MANUAL 8 29 When the Navigation Display is placed PLN mode rotate the selector to PLN on the EFIS MCP a lt CTR gt cue will appear in the center column of the RTE LEGS page The lt CTR gt cue identifies the fix that is currently used to center the navigation display s Flight Plan Display The lt gt indicator can be cycled through all points of the flight plan in order to display portions which may not be visible using the standard range display settings of the ND To cycle the lt CTR gt cue forward simply press the STEP gt prompt that is displayed at the 6R LSK The fix that is currently the lt CTR gt cue in the FMC CDU will be highlighted in white on the navigation display and will be located at the center of the ND PLAN MODE display The navigation display ND PLAN MODE display is always oriented in a north is up mode and can be modified using the EFIS MCP keys to display VOR stations airports and nav fixes With each successive press of the STEP gt prompt the Navigation Display will move further along the flight plan with the center of the display being focused on the fix that is currently identified by the lt CTR gt cue in the RTE LEGS page PMDG 737NG AOM DO NOT DUPLICATE Revision 1 2 1 8 30 FMC USER S MANUAL FIXES AND CUSTOM WAYPOINTS IN THE FMC
75. tered into the RTE LEGS page in a number of formats In most cases crew embers will navigate using existing navigation fixes such as published waypoints and VORs These types of navigation fixes can be entered directly into the RTE LEGS page by name and will be called from the stored FMC navigation database FMC Custom Waypoints In some cases however it becomes necessary for crewmembers to provide unique navigation fixes or waypoints to the FMC in order to satisfy the changing ATC requirements or in order to clearly define an unusual published approach for the FMS In such cases it is possible for the crew to define navigation waypoints in the FMC using position and altitude data relative to existing waypoint entries Currently the PMDG FMC is capable of accepting custom waypoint entry in the following formats e Place Bearing Distance waypoints PBDs e Bearing Bearing waypoints BBs Along Track waypoints ATWs e Latitude Longitude Waypoints LLWs The process for entering these three types of waypoints is described below Place Bearing Distance Waypoints PBD waypoints can be entered into the left fields of the LEGS page by entering the fix description into the scratchpad and up selecting to the desired line PBD waypoints describe a geographic point that is at a specific bearing and a specific distance from a navigation fix that is already defined in the FMC navigation database For example a PBD way
76. the waypoint T RJE LEGS 1 3 0 781 FL260 0 781 FLz50 0 781 FL250 0 781 FL2eo gan f HFDUI 0 781 T HNK 410 sired PMDG 737NG AOM USER S MANUAL 8 33 FMC FLIGHT PLAN MODIFICATION Overview During the course of a flight it often becomes necessary to adjust a flight plan in the FMC in order to keep it consistent with ATC clearances shortened routings or route deviations Using the appropriate FMC function entry to modify a flight plan greatly reduces crew workload when route of flight changes are necessary Direct To Direct To flight plan entries instruct the FMC to fly a course direct to a particular fix The fix may be part of the active flight plan active modified flight path or it may be off the intended path of flight Direct To routings are often used when ATC issues a shortcut for the route of flight as shown below Direct To routings are most easily accomplished by pressing the LEGS key on the FMC CDU and using the ACT RTE LEGS pages F81 FL270 FEL y FL270 0 781 rLz70 FHL FLe70 0 781 rL270 PMDG 737NG AOM DO NOT DUPLICATE The simplest way to perform a DIRECT TO change is to downselect or type the desired fix into the scratchpad n FL270 0 751 FL270 Then simply upselect the desired fix to the 1L LSK This will cause the modified route to be displayed on the Navigation Display as a dashed white line a
77. the FMS to provide thrust limits and thrust commands to the autothrottle servos The N1 LIMIT page can be displayed by pressing the N1 LIMIT key on the FMC CDU or by selecting the appropriate LSK when the lt 1 LIMIT prompt is displayed at the INIT REF INDEX page or PERF INIT page during pre flight A sample N1 LIMIT page is shown below Revision 1 2 15NOV03 The N1 LIMIT page displays three takeoff thrust limit options at lines 2L through 4L Lines 2R through 4R display climb thrust limit options Additional information to help the crew obtain a clear picture of expected engine performance is also available from this page The N1 LIMIT page contains the following items of interest to the crew SEL OAT Selected Outside Air Temperature and sensed Outside Air Temperature are displayed at the 1L LSK Selected Outside Assumed Air Temperature 1L key provides the crew with the ability to enter an assumed air temperature SEL Valid entries are one or two digit entries from 0 to 99 This field cannot be changed once the aircraft exceeds sixty five knots or after autothrottle engagement The field will be removed once the aircraft becomes airborne The field can be removed by using the DELETE key on the FMC CDU Helpful Hint The SEL entry is used to enter a temperature that is different from that being detected by the air data computer For example if a temperature difference is expected between the cu
78. tions listed on this page are not implemented but are included here for completeness and growth of future functionality If the INIT REF INDEX is reached via the MENU key the following menu will be presented Grayed out items are not yet implemented INIT REF INDEX lt M V DATAS lt POS BSG RECALLS PERF ALT DEST gt lt TAKEOFF ACARS gt APPROACH SEL CONFIG lt OFFSET MAINT 8 RTE Key When pressed the RTE key provides access to the ROUTE page The ROUTE page will be blank if a new route has not yet been loaded or it will display ACT RTE route is activated or MOD RTE route has been modified and needs confirmation 1 ORIGIH Revision 1 2 15NOV03 DO NOT DUPLICATE The route being displayed is described by the title line of the RTE display and can be any of the following RTE or ACT RTE or MOD RTE e Route 1 was displayed Route 1 is active No route was activated Note Currently the PMDG FMC is only capable of displaying a single route entry The actual aircraft allows two The RTE page displays the waypoint fixes and the method that the FMC will use to reach each successive fix Jey Route Victor Airway Direct etc CLB Key The CLB key is used to display the FMC CDU page dedicated to climb thrust and altitude control The CLB page is used to monitor the progress and performance of the climb as well as to set the desired performance or adjust the spe
79. titude selector knobs A combination of RTE LEGS entries and MCP selections can be used to adhere to ATC instructions or to expedite the descent profile as needed During the descent the aircraft will occasionally reach the descent limit speed regime while attempting to maintain the calculated vertical profile This can occur as a result of headwinds or tailwinds or wind forecasts not being entered correctly in the DESCENT FORCASTS page The DRAG REQUIRED prompt is generally a good indication of a tail wind condition or descent overshoot while the THRUST REQUIRED prompt generally indicates headwinds or descent undershoot In cases of descent undershoot and overshoot once the aircraft reaches the limit speeds upper or lower limits the vertical guidance function of the FMC will command the aircraft to depart the planned vertical profile while maintaining a descent that most closely follows the planned descent profile Adding drag or thrust as required will normally return the aircraft to the planned descent path Revision 1 2 15NOV03 DO NOT DUPLICATE PMDG 737NG AOM USER S MANUAL 8 47 FMC APPROACH PROCEDURES Overview The FMC approach initialization pages provide the crew with quick and effective access to the landing flap and speed selection process The FMC provides the crew with approach speed calculations for weight speed data and provides reference information for the touchdown APPROACH REF Page
80. tude information displayed in 1L describes the altitude and waypoint at which the descent is planned to end When no SID TRANSITION or APPROACH fixes are entered this area will be blank AT Line 1R contains the descent constraint waypoint as defined in the RTE LEGS page of the flight plan The header line contains AT followed by the navigation fix identifier to which the descent constraint is assigned The constraint is displayed in the DES page exactly as it appears in the RTE LEGS Revision 1 2 15NOVO3 DO NOT DUPLICATE page The descent constraint cannot be updated or changed from the DES page but it may be deleted Deleting the constraint will remove it from the lateral route TGT SPD Line 2L contains the descent speed mode information The descent speed is displayed in large font in the Mach Airspeed Information on this line cann be updated manually if desired SPD REST Line 3L provides the crew with the ability to enter an altitude dependent speed restriction The line contains transition speed followed by the transition altitude in a SSS AAAAA format The altitude entry must be an altitude below the cruise altitude but above the End of Descent altitude If operating in VNAV this speed altitude constraint pair will be used in planning the deceleration prior to descent below the designated altitude TO T D To Top of Descent describes the estimated distance and time of crossing in UTC for the T
81. ture airport STAR selection will be added at a future date Helpful Note The current version of the PMDG FMC does not offer the arrival STAR procedures at the origin airport If a return to field is necessary simply change the destination airport on the RTE page 1 then PMDG 737NG AOM DO NOT DUPLICATE DEPARTURES Page SID selection is made by pressing the lt DEP prompt on the DEP ARR INDEX page Pressing the lt DEP prompt key will display a DEPARTURES page for the selected airport The DEPARTURES page allows the crew to select the SID and associated runway to be used A sample DEPARTURES page is shown below ARTUR 1 2 ds KIAD DEPARTURES RU RIA CAP SNL 016 CAP SNe 30 amp CAPSS CAPSS2 5 SIDS The SIDS are listed on the left side of the display at 1L through 5L A SID can be selected by pressing the associated LSK Once a SID is selected a lt SEL gt indicator will appear next to the associated SID to indicate that it has been selected by the crew When a SID is selected the FMC CDU will change the list of available runways on the right side of the screen to reflect only those runways that are compatible with the selected SID To deselect a SID simply press the LSK a second time Runways The available departure runways for the selected airport are listed at 1R through 5R Pressing the associated LSK will illuminate a lt SEL gt indicator on the selected runway to ind
82. ute or victor airway information and instead will display for the crew every single fix along a route of flight no matter how long or how many fixes may exist along an airway The RTE LEGS pages also provides valuable navigation information such as distance to fix distance between fixes as well as planned altitude and speed information so 5000 3 250 9000 E 275 15000 E PMDG 737NG AOM DO NOT DUPLICATE Information displayed on the RTE LEGS page includes FIX NAME The name of each fix along the route of flight is displayed in the left most column of the RTE LEGS page Entries that will be seen in this column include any VOR NDB Navaid waypoint or other geographic fix which is defined within the navdata database Additionally conditional waypoints such as altitudes or locations will be displayed here contained in parenthetics Above each fix name the Desired Track that connects each fix to the next is described in small text 250 9000 5 275 15000 5 For example after crossing WOOLY the desired track to BAL is 130 degrees This is the ground track that the airplane should fly when transiting between these two fixes Leg Distance Information The center of the RTE LEGS display provides leg distance information for each leg of the flight plan Once again the distance displayed at 1L is the distance from the current aircraft position to the first navigation fix in the flight plan Al
83. vided to the Navigation Display Each FMC is capable of receiving input independent of the other and both systems will continually compare input process results to ensure information consistency on both FMCs If inconsistencies are detected a resynchronization process is automatically initiated FMC CDU Layout The FMC CDU is comprised of a data display screen with six line select keys located on the left and right sides of the screen respectively The data Revision 1 2 15NOV03 DO NOT DUPLICATE display screen is capable of showing 14 lines of data 24 characters wide in both large and small fonts Numeric and Alphabetic keys are provided for crew input Fifteen function and mode keys are provided to assist the crew in selecting and managing FMC modes FMC CDU Display The MCDU display screen is comprised of 14 data lines capable of displaying 24 characters across in large or small font The display is broken into three distinct areas e Title Line e Text Lines 1 6 e Scratch Pad The title line is present on every page and describes the current page that is being viewed along with that page s data status ACTive MODified etc The text lines contain information that is aligned against the left and right sides of the display and can be manipulated by the Line Select Keys The Scratchpad is where crew data entry will take place All entries that are made by the crew for entry into the FMC must

FLIGHT MANAGEMENT COMPUTER

Contents

Download Pdf Manuals

Related Search

Related Contents