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Wing aspect ratio is defined as _____

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Wing aspect ratio is defined as _____

(a) span square divided by reference area

(b) span square multiplied by reference area

(c) span square plus reference area

(d) span square

The question was asked during an interview.

This key question is from Wing Geometry-1 topic in chapter Airfoil and Geometry Selection of Aircraft Design

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The correct choice is (a) span square divided by reference area

The explanation: Aspect ratio of wing gives relation between span of wing and wing reference area. It is defined as the ratio of span square to the reference or planform area. Higher aspect ratio wings will be long with less area.

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