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**IteseFrusty** · 04-08-2009, 09:37 PM

Vapor-like trails seen in recent rain races were more a channeling of spray into the wing induced vortices, than the creation of condensation within the vortices due to the induced low pressure of the wing surface (what we saw last weekend). The low aspect ratio wings (shorter) with significantly increased angles of attack are generating these vapor trails (and more drag).

04-08-2009, 09:37 PM	#13
IteseFrusty Join Date Oct 2005 Posts 399 Senior Member	Vapor-like trails seen in recent rain races were more a channeling of spray into the wing induced vortices, than the creation of condensation within the vortices due to the induced low pressure of the wing surface (what we saw last weekend). The low aspect ratio wings (shorter) with significantly increased angles of attack are generating these vapor trails (and more drag).
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