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D.1.3) Downwash

Gobsmacked at the price quoted by a university to perform a study into the flow behind a four-engined propeller-driven aircraft I decided to do it myself, using VB6 to do so.

Using a Shrenke approximation of spanwise lift distribution and calculations based upon horsehoe vortices across the wing (that, when combined, resulted in the spanwise lift distribution) the flow field could be calculated in the xy plane.

This cost about £80 for my time.