Answer :

Final answer:

The blade angle of attack decreases as the forward speed increases on a fixed-blade propeller.

Explanation:

In the case of a fixed-blade propeller, the blade angle of attack refers to the angle between the chord line of the blade and the relative wind. As forward speed increases, the angle of attack decreases. This is because the increased airspeed causes the relative wind to approach the propeller at a smaller angle, resulting in a smaller angle of attack.

For example, let's say a fixed-blade propeller has a blade angle of attack of 10 degrees at a low forward speed. As the forward speed increases, the angle of attack may decrease to 5 degrees.

So, the blade angle of attack decreases as the forward speed on a fixed-blade propeller increases.

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