REFLECTOR: Air intake

[Mike Dawson]

N44FV, a XLFG with a 260hp Lycoming, has been said to do about 180. This by Scott Swing who flew it as seen in a you tube video. Whether this was MPH or KTS really doesn't matter, Here is why.  I own a XLFG with a 350hp Chevy V8. Other than downhill I have only seen 174KTS flat out!
Now granted it is still in rough primer but I don't believe paint will make up for the airscoop I have hanging below the belly for the radiator.

Our sleek airframes don't like stuff hanging off of them.

N427VA a SERG 427 V8 useing NACA scoops to cool however, hauls ass. Bill and Brett did it right IMHO!

Mike
N104DD



On Monday, March 3, 2014 9:29 AM, Jack Prock <jackprock at wavecable.com> wrote:
 
Hi,
 
I would like to know if anyone has any thoughts on air intakes. I am getting down to the last
few items on my list before flight and one thing I was thinking about was to put in an air intake
scoop under the engine cowling. Something along these lines:
 
 
Now my question, is for the people that have put an external air intake on the plane.
Do you get a boost at higher altitude because of the ram air effect? Does the drag of
the scoop outweigh any positive effect from the boost? 
 
I have already started designing the scoop, but now have second thoughts and wanted
to see if I was going down the wrong path.
 
Any thoughts?
 
Jack Prock
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