Describe the relationship of lift to resultant relative wind.

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Multiple Choice

Describe the relationship of lift to resultant relative wind.

Explanation:
Lift is perpendicular to the resultant relative wind. The relative wind is the actual air velocity seen by the blade or wing—it's the combination of the blade’s motion through the air and any induced flow. Lift arises from deflecting that airflow downward, creating a pressure difference between the surfaces, so the reaction force points normal to the incoming air. In other words, the lift vector is at a right angle to the relative wind, while drag would align with the relative wind.

Lift is perpendicular to the resultant relative wind. The relative wind is the actual air velocity seen by the blade or wing—it's the combination of the blade’s motion through the air and any induced flow. Lift arises from deflecting that airflow downward, creating a pressure difference between the surfaces, so the reaction force points normal to the incoming air. In other words, the lift vector is at a right angle to the relative wind, while drag would align with the relative wind.

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