>I have been doing a bit of research on wing tip shape, and it would appear
that a smoothly rounded tip produces the most induced drag, because of the
ease with which higher pressure air can on the bottom of the wing can
*escape* around to the top of the wing.
>
>I am considering a Hoerner wing tip >snip<
snap. Interestingly, the fastest Europa in the west (Kim Prout's example)
seems to feature these...
I talked to an aerodynamacist about this, and he said pretty much the same
thing. His advice was a reasonable radius from the LE into the end, and fly
it straight back to the trailing edge. -also the top to bottom surface
radius appears to be important -I plan to start with the LE radius and
reduce that gradually to about 1/4dia near the TE. The bottom surface will
just follow the shape produced by more or less straight lining between the
"tip rib" and the tip plan form.
Looks good too.
Miles
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