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The first paragraph describes an aircraft designed by the Douglas bureau in the 1930s, which was cancelled. Specifications for powerplant are given, but no type designation. In para two, we have the tantalising line "developed the Model 7B, with a similar layout to the 7A". Would the first design (abandoned after the SCW data filtered through) be the "7A"? 2A00:23C7:3131:FE01:3D5F:A5BF:8D40:D647 ( talk) 23:19, 12 December 2023 (UTC) reply