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Réf : S04258
Thème :
Aviation - Avions NASA-Prototypes (1538 images)
Titre : KC-135A in flight - winglet study
Description : (La description de cette image n'existe qu'en anglais)
The KC-135 with the winglets in flight over the San Gabriel mountains, south of Edwards AFB. While wind tunnel tests suggested that winglets - developed by NASA Langley's Richard Whitcomb - would significantly reduce drag, flight research proved their usefulness. Winglets were installed on an Air Force KC-135 and research flights were made in 1979 and 1980. These showed drag in flight was reduced by as much as 7 percent. Winglets soon appeared on production aircraft, although these were smaller than those mounted on the KC-135.
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