Maintenance Operating Limitations and 25.09.2012 Minimum thrust generation Safety Advice 13.05.2014 Installation New pictures blade position 21.01.2015 3 Specification of the propeller types Revision 16.01.2015 7 Maintenance Specific time between overhaul Manual H50F Seite 3 / 11 Ausgabe 15.01.2016...
Description HELIX propellers have been built since 1990 using composite materials such as carbon fiber, epoxy-resin, epoxy resin foam and aluminum. This unique combination of materials provides: - High Thrust - Low Noise - Durability Figure 1: 2-, 3- and 4-blade propeller of type H50F The propeller blades are made from several layers of woven glass and carbon fibre, reinforced with different sorts of glass and carbon fibre tapes.
TS = Straight Shape with small profile-depth and very small -thickness LS = Straight Shape, speed range optimized shape Fixpitch in [°] Number of Blades Customer Specific Modifications Table 1: Specification of the Propeller Type, Structure of the Helix Propeller Name Manual H50F Seite 5 / 11 Ausgabe 15.01.2016...
HELIX propellers are constructed for giving thrust to aircrafts with an engine output of between 20 and 85 kW using 2-stroke, 4-stroke, rotary- or electric engines. The operating limitations for the here described propeller types of H50F as 2-, 3- and 4-blade-Version in clockwise and anti-clockwise rotation are for diameters from 1,45m to 2,20m.
The blades have to be laid on a big table. Positioning of the blades has to be done in the way, that the milling marks of blade complements conform (figure 3). Figure 3: Blade positioning by milling marks. Manual H50F Seite 7 / 11 Ausgabe 15.01.2016...
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– backside aligned. (Sketches 1 and 2) correct wrong propeller propeller rotating axis rotating axis Sketch 1: Correct position of the propeller blades Sketch 2: Wrong position of the propeller blades Manual H50F Seite 8 / 11 Ausgabe 15.01.2016...
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- for propeller flanges with through holes self locking nuts can be used - if both alternatives are not possible e.g. Loctite 243 can be used instead - With engine flanges with through-hole threads no additional nut may be mounted at the screw end. Manual H50F Seite 9 / 11 Ausgabe 15.01.2016...
If the position numbers on the blades do not exist anymore, a guide for precise positioning of the individual blades may be obtained from info@helix-propeller.de. A specific time between overhaul for our ultralight propeller is not required from our side. To continue the operation with no limitation with a positive result at annual inspection.
600 operating hours with the manufacturer. The maximum term amounts to 900 operating hours. Warranty HELIX Carbon GmbH provides a warranty for two years from the date of purchase (according to European law). This warranty covers material defects but does not cover subsequent losses.
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