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Calculate how much power will require to maintain cruise speed of 120 m/s if thrust required is 1KN. Consider steady level flight.

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Calculate how much power will require to maintain cruise speed of 120 m/s if thrust required is 1KN. Consider steady level flight.

(a) 120KW

(b) 110N

(c) 120N

(d) 129W

The question was posed to me during an online interview.

My doubt stems from Flight Mechanics topic in section Performance and Flight Mechanics of Aircraft Design

1 Answer

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Best answer
Correct answer is (a) 120KW

The explanation is: Power = thrust*velocity = 120*1 = 120KNm/s = 120KW.

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