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Which of the following is an example of longitudinal mode?

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in Aircraft Design by (701k points)
Which of the following is an example of longitudinal mode?

(a) Phugoid

(b) Dutch

(c) Lateral

(d) Aileron

The question was posed to me in a job interview.

This question is from Dynamic Stability topic in portion Stability, Control, and Handling Qualities of Aircraft Design

1 Answer

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The correct option is (a) Phugoid

To explain I would say: Phugoid mode is an example of longitudinal mode. Dutch and lateral mode are not example of longitudinal mode. Aileron is known as primary control surface. Aileron is used to control the aircraft rolling moment.

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