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Re: Unknown Cylinder Head Recovered from Freeman Field
I am out of town now and can check when I returned to NASM later this week concerning the numeric stampings. I know that BMW began building radials under license using the P&W Hornet.
I do not know of any other foreign license builds of radials.
One thing I noticed about the large radials the US produced, R-2800, R-3350, and the R-4360, is the asymmetrical cooling fins with the exhaust side larger than the intake. It seems earlier radial cylinders for the most part were symmetrical. I also do not see that in any German or Japanese engines.
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