Airmaster Propeller System
The AP431CTF-WWR66U is a three blade propeller for use on the UL350iS series of engines. Its configuration is clockwise/tractor with the addition of a feathering facility.
This is the perfect propeller for aircraft using the UL350iS in a cross-country application. It gives exceptionally smoother operation, with a balanced profile to perform well in all flight phases.
(For STOL applications use AP521CTF-SNR70U, for high-speed applications (140kts +) use AP521CTF-WWR68A).
- Designed for UL350iS series engines
- High strength AP431 CS hub with steel retention components
- Fast response from high precision Maxon servo drive
- Wide operating speed range from Whirlwind U series profile blades
- Hard wearing composite blade construction with inlaid Nickel leading edge protection
- Easy to use AC200F electronic governor/controller
- Easy installation with a wide range of pre-made installation kits