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King Air E90 Propeller

King Air E90 Propeller. Blade Angle vs. RPM. High Angle – Low RPM. Low Angle – High RPM. Constant Speed Principles. Prop Governor adjusts blade angles to maintain RPM. On Speed – Blade Angle OK. Blade Angle vs. RPM. High Angle – Low RPM. Low Angle – High RPM. Constant Speed Principles.

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King Air E90 Propeller

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  1. King Air E90 Propeller

  2. Blade Angle vs. RPM High Angle – Low RPM Low Angle – High RPM Constant Speed Principles Prop Governor adjusts blade angles to maintain RPM On Speed – Blade Angle OK

  3. Blade Angle vs. RPM High Angle – Low RPM Low Angle – High RPM Constant Speed Principles Prop Governor adjusts blade angles to maintain RPM Over Speed – Blade Angle increases On Speed – Blade Angle OK

  4. Blade Angle vs. RPM High Angle – Low RPM Low Angle – High RPM Constant Speed Principles Prop Governor adjusts blade angles to maintain RPM Over Speed – Blade Angle increases On Speed – Blade Angle OK Under Speed – Blade Angle decreases

  5. Fly-Weights Speeder Spring Pilot Valve Beta Valve Beta Ring Low PitchStop Nut Propeller Governor

  6. Propeller Governor RPMSetting ActualRPM On-Speed 2000 2000

  7. Propeller Governor Power Lever Pr op C on t ro l RPMSetting ActualRPM Over-Speed 2000 2005

  8. Propeller Governor Power Lever Pr op C on t ro l RPMSetting ActualRPM Under-Speed 2000 1995

  9. Propeller Governor Low Pitch Stop RPMSetting ActualRPM 2000 1990

  10. Low Pitch Stop NutPulls Beta Ring Forward Propeller Governor Low Pitch Stop RPMSetting ActualRPM Under-Speed 2000 1990 Beta Valve Closes

  11. Over-Speed Governor Pre-set: 2288 RPM

  12. Prop Gov. Failed Over-Speed Governor

  13. Prop Gov. Failed At 2288 RPMOverspeed Governor Assumes Control Over-Speed Governor

  14. 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 King Air course tailored to your training needs.

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