Discussion
A delta wing has a leading-edge sweep of \( 60 \) degrees. Its aspect ratio is nearest to
Answer: D
For a delta wing the aspect ratio is \( 4/\tan\Lambda \). With \( \tan 60^\circ = 1.732 \), that gives \( 4/1.732 = 2.31 \). The low value is characteristic: slender deltas trade the induced-drag efficiency of a long wing for low wave drag and useful internal volume.
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