REFLECTOR: "V Channel"

Dave Philipsen velocity at davebiz.com
Sun May 11 20:46:52 CDT 2008


Al,

If you have any photos of your underside canard scoops I would love to 
see them.  I am currently investigating ideas to provide more cooling 
air to the cabin.  Also, does your 'flow switch' have some sort of flap 
inside or what? 

Al Gietzen wrote:
> Al where is the "V channel" for your overhead vent?
> -----------------------------
> Don't have one, John.  I have vents in the panel with small scoops on each
> side under the canard.  I also have a small squirrel cage blower that
> provides air when on the ground so I don't have to taxi with the door open.
> That required designing and fabricating an automatic 'flow switch'.  It is
> actuated by air pressure.  When air is coming in the scoop it automatically
> closes off the port to the blower, and vice versa.
>
> Rear seat air comes from small ports on the leading edge of the strake just
> out-board of the door cut, (look closely at second photo) ducted to eye-ball
> vents at the front of the strake cutout inside. Fairly high pressure there
> at the stagnation point, so the flow is good and there is no drag.  Amazing
> thing is it all works.
>
> Al
> ------------------------------------------------------------------------
>
>   

-- 
Dave Philipsen
Velocity STD-FG
N83DP



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