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If KCD0 is 0.014 then, find lift to drag ratio for minimum sink.

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in Aircraft Design by (701k points)
If KCD0 is 0.014 then, find lift to drag ratio for minimum sink.

(a) 3.66

(b) 36.6

(c) 1.4

(d) 24

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

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

1 Answer

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Correct answer is (a) 3.66

Explanation: Lift to drag ratio of minimum sink (0.1875/KCD0)^0.5

= (0.1875/0.014)^0.5

= 3.66.

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