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.
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 H30F as 2-, 3- and 4-Blade-Version in clockwise and anti-clockwise rotation are for diameters from <1,00m to 1,55m.
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 H30F page 7 / 10 Ausgabe 13.11.2015...
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Further, the propeller front plate (pressure disc) with a minimum thickness of 5mm needs to be adjusted with the bolts at the root part area. Figure 12: 3-blade Propeller ex. H30F Figure 13: 4-blade Propeller ex. H40F Finally, the propeller is to be mounted onto the propeller flange of the engine.
Annually, the propeller should be polished professionally. It is recommended that this is carried out by a respected coachbuilder or similar facility. Manual H30F page 9 / 10 Ausgabe 13.11.2015...
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.