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The aircraft is a rigid body.

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in Avionics by (87.0k points)
The aircraft is a rigid body.

(a) True

(b) False

This question was posed to me during an online exam.

Question is from Control Laws in FBW in chapter Fly by Wire Flight Control of Avionics

1 Answer

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Right answer is (b) False

To explain: The aircraft structure is flexible and has a variety of flexural and torsional modes. The frequency of this structural mode is typically between 8 and 15 Hz for a fighter/strike aircraft and 2 to 4 Hz for a large transport aircraft.

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