Advertisement
6
Pre-Flight Checks
Before every flight the following has to be controlled:
- Check engine / Gearbox bearings for excessive play.
- All blades are fixed
- Check bolts for tightness and security of wire locking
- No play of propellertip
- Blades are not damaged and have no cracks
Slight resin-flakings by debris can be accepted, but should be repaired shortly. The repair
can be done with economical application of special resin. If the check is not satisfactorily
the handling has to be stopped and the propeller repaired.
Warning:
A propeller failure has more serious consequences than an engine failure! As
consequence of a damaged propeller serious vibrations are possible. This unbalanced
mass can tear the engine out of the engine bracket and lead to serious balance point
shiftment with serious consequences to stay in a save flight attitude!!!
7
Maintenance
The propeller should be cleaned at the end of each day's operation.
This prevents the built up of dried grass and insects etc. on the blades. Cleaning of the
blades should be carried out with a soft sponge using a weak detergent solution.
Annually, the propeller should be polished professionally. It is recommended that this is
carried out by a respected coachbuilder or similar facility.
Manual H25F
Ausgabe 13.11.2018
page 9 / 10
Advertisement
