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The propeller blade section angle varies from the hub to the tip so that there isQuestion 6Select one:a.An increase in the angle from hub to tipb.A decrease in the angle from hub to tip

Question

The propeller blade section angle varies from the hub to the tip so that there isQuestion 6Select one:a.An increase in the angle from hub to tipb.A decrease in the angle from hub to tip

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Solution

The propeller blade section angle typically decreases from the hub to the tip. This is due to the variation in relative airspeed along the length of the blade. The speed of the blade section increases from the hub to the tip, so to maintain an optimal angle of attack, the blade angle is decreased. So, the correct answer is b. A decrease in the angle from hub to tip.

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