Aspect Ratio
The aspect ratio
of a wing is defined as the square of the span divided by the wing area.
Itis a measure of how long and slender a wing is from tip to tip. For
a rectangular wing, this reduces to the ratio of the wingspan to the chord
length. High aspect ratio wings have long spans (like high performance
gliders), while low aspect ratio wings have either short spans or thick
chords (like the Space Shuttle). Gliders have a high aspect ratio because
the drag of the aircraft depends on this parameter. A higher aspect ratio
gives a lower drag and a better glide angle. The Space Shuttle has a low
aspect ratio because of high-speed effects.
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