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An unstable A/C configuration is a typical wing-aft tail body. IF MAC is 4m then, what would be the approximated location of the CG?

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An unstable A/C configuration is a typical wing-aft tail body. IF MAC is 4m then, what would be the approximated location of the CG?

(a) 2m

(b) 5m

(c) 6m

(d) 7m

The question was asked in final exam.

This intriguing question comes from Configuration Layout in chapter Configuration Layout and Loft of Aircraft Design

1 Answer

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Right answer is (a) 2m

Explanation: Typical location Cg for an unstable wing = 50% of MAC = 50% of 4 = 0.5*4 = 2m.

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