"Why do I use the Airmaster? No oil leaks, easy operation, full feathering at any speed
and the comfort that in the event of a controller failure, I am not stuck out. The Airmaster can be operated in manual (a
variable pitch only mode). Should the brushes fail, or complete electrical failure, I can continue my flight in manual control,
land and and with a screw driver, open the prop motor cover and use a 9 volt battery to drive the blades to a fixed pitch
setting to get me home. The comfort of a prop that is perfectly tuned to my 914 Rotax, with no chance of an oil leak or other
problems to stick me out on a cross country adventure."
Bud Yerly, N12AY Europa Classic with