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Home > Exam Questions > ATPL - Airline Transport Pilot Licence > Aircraft General Knowledge - Airframe, Systems, Powerplant > A single-engine aeroplane has a non-feathering constant-speed propeller in which governor oil pressure increases blade pitch and centrifugal twisting and/or spring force decreases pitch. If governor oil pressure is completely lost, the blades tend to:

467 - ATPL Question Bank in English - A single-engine aeroplane has a non-feathering constant-speed propeller in which governor oil pressure increases blade pitch and centrifugal twisting and/or spring force decreases pitch. If governor oil pressure is completely lost, the blades tend to:

Question 467 - Aircraft General Knowledge - Airframe, Systems, Powerplant - ATPL - Airline Transport Pilot Licence

Move in low pitch position by oil pressure created by the windmilling propeller.

Move in the lowest pitch position by the centrifugal force and/or the spring force.

Move in the highest pitch position by the aerodynamic force.

Move in a certain pitch position depending on windmilling RPM.

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