Could anyone be kind enough to identify this engine part (i.e. Manufacturer and Type). What limited information I have is that it was found during the war (or end) at or near to Neuberg airfield, Germany where the Luftwaffe had a operational training school, one type of aircraft operated out of the airfield was the Junkers W34, no doubt other aircraft operated from there. Looking at Wikedia the Junkers W34 had fittedvarious engines including a Jupiter, could it be a Jupiter or something else? Many thanks in advance for any help or suggestions.
By: FLY.BUY - 20th March 2018 at 21:29
Thanks for your comments and thoughts Anon, taking into account what you said this evening I looked at the Pratt and Whitney R-1340 which appears to have very similar cylinders. Then I came across the BMW 132 engine which was built by the German’s under licence from Pratt and Whitney, this engine appears to have the wire clips fitted for the rocker covers. A quick check on Wikipedia shows that the BMW 132 engine was fitted to the Junkers W34hi and this version was mostly used by the Luftwaffe to train pilots and radio operators which fits nicely with the use of this airfield. At the time of of acquiring this item it did come with some other W34 items but there was no provenance to the engine cylinder other than the airfield it came from.
By: Arabella-Cox - 20th March 2018 at 17:42
It’s not Jupiter, FLY.BUY. It’s later than that, made using the US-patented finned head, with enclosed rocker gear, screwed and shrunk onto the cylinder barrel.
It looks very American but also has the Armstrong Siddeley method of wire clips for holding down the rocker covers, which either Pratt and Whitney or Wright never used. However, I know little more than that regarding its identity.
It occurred to me it might well be Bramo Fafnir or BM801, though I think the latter’s rocker covers were, like the US stuff, fitted using studs and nuts.
It is certainly second generation air-cooled radial, with all the modern features which persist to this day, so that makes it late 1930’s onwards.
Anon.
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March 20, 2018 at 4:25 pm