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The drawing in Ed Anderson's post looks like the
radiator cores used in the P51-As that the late Gerry Beck built in his
shop in Wahpeton, ND. The tubes are about 3/16" round copper, about
16" or 18" long. Spacing between the tubes is maintained by forming
the ends into a hexigon shape so the tubes nest like a
honeycomb. No fins!
Gaylen Lerohl
----- Original Message -----
Sent: Sunday, November 25, 2007 10:21
AM
Subject: [FlyRotary] Re: what are
they
I don't think you guys are actually reading the NACA paper about these
rads.
The flat plate rads in the paper have NO FINS at all and do not
have multiple layers of flat tubes, only a continuous flat tube from front to
back (as much as 20" !!! ) with NO FINS on the tubes. I have only
seen this type of rad in a museum so I'm not surprised that people are a bit
confused about this. That is why I said this study is not applicable to
our installations.
Ed K. may be correct that a similar core might be used inside water
to oil coolers.
Tracy
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