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If aerodynamic efficiency of the glider is 20 then, found the value of corresponding glide angle.

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If aerodynamic efficiency of the glider is 20 then, found the value of corresponding glide angle.

(a) 2.86 unit

(b) 3.8

(c) 5.6

(d) 12.12

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I would like to ask this question from Flight Mechanics in division Performance and Flight Mechanics of Aircraft Design

1 Answer

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Correct choice is (a) 2.86 unit

Explanation: Glide angle = arctan (1/Aerodynamic efficiency) = arctan (1/20) = 2.86 unit.

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