Post War in The United States
Like many German scientists, Lippisch was taken to the United States after the war under Operation Paperclip. Advances in jet engine design were making Lippisch's ideas more practical, and Convair became interested in a hybrid (mixed power) jet/rocket design which they proposed as the F-92. In order to gain experience with the delta wing handling at high speeds, they first built a test aircraft, the 7002, which became the first jet-powered delta-wing aircraft to fly on June 9, 1948. Although the U.S. Air Force lost interest in the F-92, the next test model 7003 was designated the XF-92A. This led Convair to proposing delta wing for most of their projects through the 1950s and into the 1960s, including the F-102 Delta Dagger, F-106 Delta Dart and B-58 Hustler.
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