REFLECTOR: Engine cooling NACA scoops
Brian Michalk
michalk at awpi.com
Wed Jul 16 21:43:15 CDT 2008
The Guru, otherwise known as Andy Millin uploaded a nifty Excel
spreadsheet that calculates NACA dimensions.
http://www.tvbf.org/docs/NACA%20Submerged%20Inlets.xls
Dave Philipsen wrote:
> I have been struggling with marginal cooling on my STD FG equipped with
> armpit scoops. The only way I can keep cool enough during cruise is to
> fly above 6000 feet and run LOP. I have been somewhat successful at
> bringing the temps down by repairing/reworking the baffling and seals as
> well as doing a little rework on the scoops themselves but I'm still not
> happy with it. I'm seriously thinking about retrofitting it with the
> overhead NACA vents and downdraft cooling. My question is: Does
> anyone have templates that I could borrow/acquire so I don't have to
> guess about the size and positioning? Also, should I expect to see a
> small improvement in cruise speed with the NACAs after removing the
> armpit scoops?
>
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