Mike
My history may be way off base here, but I thought that NACA was the early
version of NASA. That the testing on these ducts was late 1940's. And yes
aviation was trying to crack the sound barrier at that time. Have noticed on
747's and the like, which are sub-sonic, that they do use the NACA duct on
the fuselage. But as you mention all this doesn't mean that they will work
correctly.
JB
----- Original Message -----
From: <Flowbench@aol.com>
To: <saltracer@servusa.com>; <piggy@accessatc.net>;
<land-speed@autox.team.net>
Sent: Sunday, February 15, 2004 11:56 PM
Subject: Re: NACA duct
> John, I might point out that a NACA duct was a design used mainly for
super
> sonic aircraft. So very we funded factory race teams in the not so distant
past
> tried to use them for radiator, intake openings, etc. Far from successful.
> Take care if you follow this path, you may want to use pressure
differential
> "magnalithic" gauges.
> Mike
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