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840 Propellor

Dive into the intricacies of propeller control systems with a focus on pilot valves and flyweights. This presentation covers essential elements like the ON-Speed, OVER-Speed, and UNDER-Speed pilot valve functions, and their effects on oil flow in the gearbox. Learn how different components interact, including the Beta Tube, low-pitch stop, and the feathering mechanism. For tailored training on Commander courses, reach out via email for more details.

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840 Propellor

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Presentation Transcript

  1. 840 Propellor

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

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

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

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

  6. Basic Prop Control Low-Pitch Stop Beta Light

  7. Prop Feather

  8. NTS Not Active Negative-Torque Port

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

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