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An aircraft is cruising with lift coefficient of 2.5 and thrust loading of 0.6. Find drag coefficient of the aircraft.

An aircraft is cruising with lift coefficient of 2.5 and thrust loading of 0.6. Find drag coefficient of the aircraft. Correct Answer 1.5

Given, lift coefficient CL = 2.5, thrust loading T/W = 0.6. Now, thrust loading at cruise is given by, T/W = CD / CL 0.6 = CD / 2.5 CD = 0.6*2.5 = 1.5.

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