Aviation Dictionary
نسبت منظری بال، نسبت طول بالهای هواپیما به طول وتر (chord ) و یا نسبت مربع طول بال به سطح کل آن.
Aspect ratio = Span² / Area
The ratio of the length, or span, of an airfoil to its width, or chord. For a nonrectangular airfoil, the aspect ratio is found by dividing the square of the span by the area.
Aspect ratio = Span² / Area