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Old January 30th 07, 01:38 AM posted to rec.aviation.misc
Capt. Geoffrey Thorpe
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Default What angle creates MAXIMUM air deflection?

wrote in message
ps.com...


On Jan 27, 9:52 pm, Brian Whatcott wrote:
On 27 Jan 2007 18:22:44 -0800, wrote:

...
OK, don't make fun of me here!!! Lift also requires convex curvature
on the top, doesn't it?


No. It doesn't.

That's not the case here. This is just a flat
piece of Lexan, nothing else.


That will work fine to generate lift - the problem is your "maximum
deflection" would be maximum lift and would involve flow on both sides.

Also the deflection isn't vertical,
it's horizontal. You're looking DOWN on it in the graphic above. That
"surface AB" in the graphic is looking down on the plastic "edgewise."
I just want to know what angle to set it to maximally deflect the air.


I assume you want to "shield"? Which will be different than maximum
deflection.

Can you tell me, or not?


Likely not.

You want a flat plate with no turbulance behind? I ain't got a clue.

--
Geoff
The Sea Hawk at Wow Way d0t Com
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