Negative blade angle allows for what kind of thrust?

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Multiple Choice

Negative blade angle allows for what kind of thrust?

Explanation:
Negative blade angle changes the direction the blades push air. With a negative pitch, the blades deflect air toward the front, so the engine’s reaction pushes the airplane backward relative to its motion. That backward thrust resists forward motion and helps slow the aircraft down on landing—this is reverse thrust. Forward thrust would come from a positive pitch that deflects air rearward, no thrust would be from zero pitch, and variable thrust isn’t the specific outcome of simply having a negative angle.

Negative blade angle changes the direction the blades push air. With a negative pitch, the blades deflect air toward the front, so the engine’s reaction pushes the airplane backward relative to its motion. That backward thrust resists forward motion and helps slow the aircraft down on landing—this is reverse thrust. Forward thrust would come from a positive pitch that deflects air rearward, no thrust would be from zero pitch, and variable thrust isn’t the specific outcome of simply having a negative angle.

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