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Several aircraft manufacturers used corrugation around that time period (1920's through 1930's)...Ford tri-motor would be a good example, so would the Tupolev ANT-9.Corrugations say Junkers but I may be wrong.
Several aircraft manufacturers used corrugation around that time period (1920's through 1930's)...Ford tri-motor would be a good example, so would the Tupolev ANT-9.
Yeah, and they were "whizzing up a rope" because it was one of those emerging technologies that all the manufacturers were using.Junkers sued Ford over that two.