840 Propellor

Basic Prop Control ON-Speed Flyweights Pilot-Valve Speeder Spring

Ports Prop to Gear-case Basic Prop Control OVER-Speed Pilot Valve Blocks Oil, Ports Prop to Gear-case

Basic Prop Control UNDER-Speed Pilot Valve Blocks Oil Dump, Ports Oil to Prop Note Port in Beta Tube

Basic Prop Control Low-Pitch Stop Propeller Piston & Beta-Tube Move Forward Beta-Tube Port Blocked

Basic Prop Control Low-Pitch Stop Beta Light

Prop Feather

NTS Not Active Negative-Torque Port

Do you like what you’ve see so far? Do you want to see the rest of this system presentation? Send me an Email at larry@larryyorkaviation.com for information on how to schedule a Commander course tailored to your training needs.