Ernest,
just really busy now, but there is a good website with a builder who did a
lot of modificacion to the NACA to make it work - I'll find it and forward,
also on the quote from the NACA-inventors.

Thomas

----- Original Message -----
From: "Ernest Christley" <echristley@nc.rr.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Wednesday, October 19, 2005 9:05 AM
Subject: [FlyRotary] Re: NACA scoops


> rijakits wrote:
>
> >
> >     Remember the inventors of the NACA-duct did recommend to NOT use
> >     it as a pressure-recovery intake (what we need for our our car
> >     style radiators)
> >
> I've heard this repeated so many times, and yet I've never been able to
> find the report that said it.  I believe it is well on its way to
> becoming an old-wives-tale.  I've looked for a while in vain to find the
> exact quote this morning, but the closest I've been able to find was
> more along the lines of "we didn't test that, so we don't recommend it."
>
> "We don't recommend it, because we haven't tested it" is NOT the same
> as, "we don't recommend it because we found it doesn't work."
>
> All of the reports are online at naca.larc.nasa.gov.  That address
> starts you at the search page.  'submerged inlet' brings up the reports
> on NACA scoops, with the most germaine for our purposes being located
> at  http://naca.larc.nasa.gov/reports/1951/naca-tn-2323/ .  I'll keep
> looking for the quote I'm referring to above, but I would really
> appreciate a pointer to the report that says, "We found submerged inlets
> to be deficient for use with radiators."
>
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