The two biplanes used by the cartographers were original 1930s aircraft designs, the yellow one an American Stearman Model 75, and the silver one a British De Havilland DH82 Tiger Moth. Of the two, the Stearman is unlikely to have been in the possession of a (British) civilian during the 1930s - nearly all were built for the U.S. military as primary trainers. There were a few hundred civilian-operated Tiger Moths, however, and it is quite likely that a cartographer in the employ of the R.G.S. would have access to one. Both types were heavily used before and during World War II and many military surplus versions were operated by civilians postwar.
Scritto da il 05-03-2025 alle ore 09:38

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