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Re: REFLECTOR: Need advice on air scoop
From: "Al Gietzen" <email@example.com>
> Sounds like an interesting installation. I had pondered also whether using
> heater core and fan would sufficiently augment cooling to handle the taxiway
What might be better is a GM AC evaporator. They're aluminum, light and
very efficient. Lots of people use them as their _radiators_ in aircraft
> I'm sure you know that this is no simple problem, and has a lot more
> variables than you've given.
Amen! Cooling system design isn't easy.
> As I understand inlet design, a NACA is most effective in converting dynamic
> pressure to static pressure under variable flow, whereas a ram scoop will
> give better max flow for the same inlet area, but less pressure off its
> design point as it spills air. If you will have flow through this scoop at
> all times, you may wish to use a ram scoop.
Just as long as the scoop is well faired, like the P-51's. Air spilling out of a
too big scoop and/or too restrictive core isn't quite as bad as it sounds in
terms of drag, but a bigger scoop still adds to the flat plate drag of the
> Good luck.
> Al Gietzen