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Not sure of all the wood types used, but it bears mentioning that the spruce and ash used was not just ordinary spruce and ash. The woods had to be extremely fine quality and properly aged to be of use. Stores of aged woods began to be used up quickly once war production got well under way; and mechanical aging processes were not good enough at the time as I understand it. My memory says the wood had to be aged several (5?) years, so you can imagine the concern as you got down to a couple of year's supply! The Allies had supplies of fine sitka spruce from the U.S.; the blockade of the Germans really hurt their war production. Although I don't think Fokker developed steel tube fuselage construction because of it, I'd bet its use appealed to the Germans when selecting aircraft for mass production late in the war. I wonder if the development of plywood fuselages such as the Roland, Pfalz and Albatros enabled them to use more readily available woods, since the laminated ply construction provided much extra strength? Anybody know?
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