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Which of the following is correct for steady level flight?

Which of the following is correct for steady level flight?

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asked Aug 17, 2021 in Aircraft Design by Ananya (701k points)

Which of the following is correct for steady level flight?

(a) T=D

(b) T>D

(c) D<T

(d) L>W

I have been asked this question in examination.

The doubt is from Flight Mechanics topic in division Performance and Flight Mechanics of Aircraft Design

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1 Answer

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answered Aug 17, 2021 by Dominic (1.6m points)
selected Sep 14, 2021 by Ananya

Best answer

Correct choice is (a) T=D

The best explanation: In steady level flight, flight path angle or climb angle is zero. Hence, conventional equation of motion reduces to the thrust T = Drag D. Steady level flight is unaccelerated and hence all the forces should give sum in respective direction as zero.

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