Propellers Flashcards
What angle is the flight idle prop blade set at?
12.7 degrees
If the primary governor fails in flight, to what setting will the RPM revert back to?
1802 RPM
If the primary prop governor fails during take-off, what RPM will the prop govern at?
1802 RPM
What is the operating range of the B1900D propeller?
1200 - 1700 RPM
What does the Beta valve control?
Both the ground and flight idle low pitch stops
The fuel-topping governor is set to what % of the primary governor when the power levers are in reverse?
96%
Which propeller does the prop sync system reference the other to?
The prop sync system will always adjust the lower rpm prop to the higher one.
To what pressure does the prop governor pump raise the pressure to for use by the prop governing system?
750 PSI
During the primary over-speed governor test the hydraulic over-speed governor is reset to what RPM?
1565 RPM
Having the propeller fully forward, as per checklist, is required during?
- Normal landing
- Max reverse thrust landing
- Short field landing
What is the function of the fuel topping governor?
To protect against propeller and power turbine over speed.
What is the maximum allowable propeller RPM?
1870 RPM
How can the propeller be feathered?
By bringing the propeller lever to the feather position.
The primary governor modulates…….pressure in the propeller dome in order to change the blade angle and maintain constant propeller speed.
Engine oil
What happens to the prop pitch and prop RPM if oil pressure is increased in the propeller dome?
Pitch decreases (finer) RPM increases
