What is geometric pitch in aircraft propellers?
Aircraft Propellers

Flashcard
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Physics
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Geometric pitch refers to the angle of the propeller blades along their length, which affects the angle of attack during flight.
2.
FLASHCARD QUESTION
Front
Why is it important for a propeller blade to have variations in geometric pitch?
Back
Variations in geometric pitch allow for a relatively constant angle of attack along the blade's length during cruising flight.
3.
FLASHCARD QUESTION
Front
What is the ideal blade angle setting for a controllable-pitch propeller during takeoff?
Back
The blade angle should be set at a small angle of attack and high RPM for optimal performance during takeoff.
4.
FLASHCARD QUESTION
Front
What does a constant-speed propeller do?
Back
A constant-speed propeller adjusts the pitch angle of the blades to maintain a constant engine RPM, optimizing performance.
5.
FLASHCARD QUESTION
Front
What happens if a propeller blade is shortened due to damage?
Back
The remaining blades must be reduced to conform with the shortened blade to maintain balance and performance.
6.
FLASHCARD QUESTION
Front
What effect does ice formation have on a propeller blade?
Back
Ice formation can produce unbalance and vibration, negatively affecting the propeller's performance.
7.
FLASHCARD QUESTION
Front
Define angle of attack in the context of propellers.
Back
Angle of attack is the angle between the chord line of the propeller blade and the oncoming airflow, influencing lift and drag.
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