Now, Two Propellers to choose from.  The AP 332 three blade we all know and the AP420 two blade with Sensenich Blades.  An all new AP430 three blade is in the works so watch for updates.  Each prop gives you: Quicker take-off and improved climb performance Improved fuel efficency and range Higher top speed Steeper descent and shorter landing roll Quieter operation with lower prop speed Safer flying Longer engine life Simple operation Easy maintenance Each propeller carries our exclusive Money Back Guarantee

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"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 perfectly tuned to my 914 Rotax, with no chance of an oil leak sold me to stick me out." Bud Yerly, Europa