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An aircraft is cruising with cruise speed of 250m/s. All of the sudden aircraft experiences in a gust with velocity of 10m/s. determine the change in angle of attack due to this upward gust.

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An aircraft is cruising with cruise speed of 250m/s. All of the sudden aircraft experiences in a gust with velocity of 10m/s. determine the change in angle of attack due to this upward gust.

(a) ∼2.3°

(b) ∼6°

(c) ∼5.6°

(d) 9°

This question was addressed to me by my school teacher while I was bunking the class.

The query is from Air Loads topic in chapter Structures and Loads of Aircraft Design

1 Answer

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Right choice is (a) ∼2.3°

Best explanation: Change in AOA = arctan (gust velocity / cruise speed)

= arctan (10/250)

= arctan 0.04 = 2.29 ∼ 2.3 deg.

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