Description HELIX propellers have been built since 1990 using composite materials such as carbon fibre, epoxy-resin, epoxy resin foam and aluminium. This combination of materials provides: - High Thrust - Low Noise - Durability Figure 1 and 2: 2-blade and 3-blade propeller of type H30F The propeller blades are made from several layers of woven carbon fibre, reinforced with different sorts of carbon fibre tapes.
S = Straight shape with small profile-depth and -thickness Fixpitch in [°] (degree) Number of Blades Customer Specific Modifications Table 1: Specification of the Propeller Type Structure of the Helix Propeller Name Manual H25F page 5 / 10 Ausgabe 13.11.2018...
HELIX Propellers are constructed for giving thrust to aircrafts with an engine output of between 1 and 100 kW using 2-stroke, 4-stroke, rotary- or electric engine. The operating limitations for the here described propeller types of H25F as 2-, 3- and 4-Blade-Version in clockwise and anti-clockwise rotation are for diameters from <1,00m to 1,40m.
Blades have to be opposite! Warning: At this point it has to be checked that the tailing edge of all Blades is in right position in turning direction – backside aligned. Manual H25F page 7 / 10 Ausgabe 13.11.2018...
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- for propeller flanges with through holes self locking nuts can be used - if the first alternatives are not possible loctite 243 can be used instead After 3 working hours the mounting of the propeller has to be checked and the screws retightened. Manual H25F page 8 / 10 Ausgabe 13.11.2018...
Annually, the propeller should be polished professionally. It is recommended that this is carried out by a respected coachbuilder or similar facility. Manual H25F page 9 / 10 Ausgabe 13.11.2018...
Warranty HELIX Carbon GmbH warrants the propeller for two years from the date of purchase (according to European law). The guarantee covers material defects but does not cover subsequent losses. The operator flying with this propeller does so at his/her own risk.
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