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When Jack Northrop set up the Northrop Corporation as a joint venture with the Douglas Aircraft Company in 1932, he set out to design two closely related single-engined aircraft as the new company's first products, a mailplane/record breaking aircraft, which was designated the Gamma and a passenger transport, the Delta.
In December 1932, it ordered the XF7B from Boeing, and based on the impressive performance of Northrop's Gamma and Delta, both stressed skin monoplanes, placed an order with Northrop on May 8, 1933 for a single prototype fighter, designated XFT-1.