Aspect ratio (aeronautics)
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In aeronautics, the aspect ratio of a wing is a measure of its length relative to its width. Mathematically, it is defined as the square of the wingspan divided by the wing area. For wings of constant
An ASH 31 glider with very high aspect ratio (AR=33.5) and lift-to-drag ratio (L/D=56)
Extremely high aspect ratio wing (AR=51.33) of the Eta motor glider providing a L/D ratio of 70
High aspect ratio wing (AR=12.8) of the Bombardier Dash 8 Q400
Moderate aspect ratio wing (AR=5.6) of a Piper PA-28 Cherokee
Wing configuration
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The wing configuration or planform of a fixed-wing aircraft is its arrangement of lifting and related surfaces.
Aspect ratio (aeronautics)
…to chord. Thus, a long, narrow wing has a high aspect ratio, whereas a short, wide wing has a low aspect ratio. Aspect ratio and other features of the planform are often used to predict the aerodynamic efficiency of a wing because the lift-to-drag ratio increases with aspect ratio, improving the fuel economy…
The Spitfire wing may be classified as: "a conventional low-wing cantilever monoplane with unswept elliptical wings of moderate aspect ratio and slight dihedral".
A forward-swept-wing Sukhoi Su-47 alongside the more conventional swept-back Su-27 and Su-30MK2.