<p>Other interesting data found at Braunschweig was a wind-tunnel test series to determine the optimum location for a jet engine nacelle. The Germans built a wind-tunnel model of a wing that could mount a nacelle at various locations above and below the wing, and at different fore and aft locations Noted at the time, and distributed by the group, those results later provided valuable input to the Boeing designers.
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<p>The sweepback data found its first tangible expression in the North American XF-86, which was redesigned with a swept wing in November 1945, and first flew on 1 October 1947. Both sweepback data and nacelle position information were useful in the design of the Boeing XB-47, which first flew on 17 December 1947. Both aircraft set the style for fighters and bombers that followed.
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<p>In August 1945, von Karman's group submitted a secret report entitled "Where We Stand" comparing German and American wartime aeronautical science and technology. Since the original mission was to develop a long-range research plan, von Karman's team prepared a second report entitled "Toward New Horizons" which became, with a companion volume called "Science: The Key to Air Supremacy" the major impetus for basic scientific research in the USAF.
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<p>Von Karman's report underscored his belief that the Air Force was the pre-eminent defense arm and that to maintain that position required a continuing input of science and technology. It was a most important document, and it served as a guiding outline for many years afterward.
