POWERPLANT - PROPELLER Flashcards
What is the primary purpose of an aircraft propeller?
To convert engine power into thrust
Which material is commonly used for modern aircraft propellers?
Composite materials
Which type of propeller has blades with a fixed angle?
Fixed-pitch propeller
What is the function of the governor in a constant-speed propeller system?
Maintain a set RPM
Which type of propeller blade pitch is used for takeoff?
Fine pitch
What does the term ‘feathering’ refer to in a propeller system?
Adjusting blade pitch to reduce drag
Which type of propeller is designed to operate at a constant RPM regardless of airspeed or power setting?
Constant-speed propeller
Which type of propeller can be adjusted to different pitch settings while in flight?
Constant-speed propeller
Which type of propeller pitch setting is used for cruise flight?
Coarse pitch
What is the primary purpose of a propeller governor?
Control propeller blade pitch
Which component is responsible for changing the pitch of a variable-pitch propeller?
The pitch change mechanism
In a twin-engine aircraft, what is the purpose of synchronizing the propellers?
To reduce vibration and noise
What happens when a propeller is ‘over-speeding’?
It rotates at a higher RPM than safe limits
How is the blade angle measured on a propeller?
Degrees from the plane of rotation
What is the function of the propeller hub?
To house the pitch change mechanism
