carbon propellers helices e-props ng
Contents
1. 2 blades and 1 hub easy to assemble and disassemble interesting for storage and transport simple replacement of one blade GROUND ADJUSTABLE PITCH Pitch adjusted in worshop for each engine reducer couple by keyways with possibility for the customer to change the pitch if necessary NG D PROPELLER S ASSEMBLY 1 Check the engine First verify in engine and paramotor manuals the appropriate instructions for propeller s implementation Then check the good state and the cleanliness of the threadings receiving screws in flange s engine Screws have to screw completely by hand 2 Assembly of the blades a Get both blades both parts of the hub and screws together The material of the hub is very dense and does not require any plate Medium washers are included in the kit to put under the screws heads b Locate the keyways in the blades feet and in the hub c Put the blades in the hub d Close the hub and torque the screws a b WARNING Propeller is a vital part of the aircraft A problem with the propeller can force to an emergency landing and may possibly cause vibrations such as the such as the aircraft or its engine could be damaged The propeller has to be assembled and correctly maintained according to the instructions of the present document d ng H el eS N G gi D H lices E PROPS a st A department of the ELECTRAVIA company A rodrome de Sisteron 04200 Vaumeilh France 33 4 92 34 00 OO Email inf2. HELICES E PROPS NG D RANGE ASSEMBLY amp OPERATING INSTRUCTIONS ref 2013 02 10E H l ices N G CARBON PROPELLERS CG fia i HELICES E PROPS RANGE NG D light carbon propellers disassembled ground adjustable Blades in carbon carbon braid with continue fibers between upper and lower surfaces of the blade epoxy resin honeycomb core with internal spar blade s foot with stainless steel ring RTM Resin Transfer Molding manufacturing Hub in beech wood veneers impregnated with special resins round or rectangular shape depending on drill hole pattern manufacturing of the hub on 3 axis machining center Specific E PROPS design Propeller s pitch is adjusted at workshop for each engine Pilot can also adjust the pitch himself Traceability ref serial on each blade ref on each hub Advantages of a NG D propeller VERY LIGHT about 750 gr for a 125 cm diameter more resistant propeller gt faster acceleration and deceleration of the engine the propeller is more reactive it stops much more fast that is 2 x fewer risks of break in case of shock in the propeller 2 x less stored kinetic energy thus 2 x fewer damages in case of impact Comfort increased for the pilot gt 2 x less mass propeller on the back 2 x fewer gyroscopic efforts less couple Better functioning of the engine gt 2 x fewer constraints on the reducer fewer vibrations due to the functioning propeller DISASSEMBLED in 3 parts
3. ine is stopped Be always extremely careful as soon as an engine equipped with a propeller may turn Warning before turning the propeller with the hand always verifying attentively that the driving ignition is off NG D propellers gt max 3000 RPM Max power 35 hp on engines with a reduction gear The cleaning of a carbon propeller is made with a sponge with some water with soap or with a product for windows cleaning Maintenance before each flight visual inspection of the propeller and check of the screws Periodic maintenance check of the tightening every 25 hours of flight or every 3 months If an incident or a shock require an important repair this one must be realized by H lices E PROPS in its workshops or by a specialist after discussions with the team E PROPS Blades have a ref and a serial hub has a ref Blades Hub ref These references are important for determining with the team E PROPS the modifications or the possible replacements of elements They also are indicated on the invoice The final checks of the propeller and in particular balancing are made by H lices E PROPS before the delivery Any modification of the propeller can damage the balancing and generate vibrations which could damage the engine In case of incident please contact H lices E PROPS as soon as possible Good fights with your NG D propeller
4. os e props fr www e props fr 3 Implementation on the engine Put the hub against the flange of the engine and make sure that both faces are flat The arrow on the side of the hub is pointed towards the engine When positioned behind the paramotor the pilot must see the lower surface of the blades with the E PROPS stickers Warning the propeller must be mounted directly against the flange NEVER INSERT a rubber ring or metallic plate between the propeller and the flange the screws could break 4 Screws tightening locking torque Tightening of the screws as follow 1 3 2 4 TORQUE gt Screws 6 mm 1 4 daN m Screws 8 mm 2 daN m The nominal torque of tightening of screws will be applied in three successive operations and in a progressive way The torque of tightening of every operation will be equal in 1 3 of the nominal value During the tightening a light collapse of the material is normal on the flange and on the hub The torque of tightening must be necessarily controlled after the first hour of flight and afterward as often as necessity and at least every 25 hours Warning if the screws are not supplied by H lices E PROPS they have to be of quality 8 8 A superior quality is not good OPERATION MAINTENANCE REPAIR Any running propeller can present a potential danger for the pilot the passenger and or the spectators Never let the children touch propellers even when the eng
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