EMPIRE CENTRAL FLYING SCHOOL : AIR UNIVERSITY OF THEALLIED NATIONS. - (Picture issued 1943) For story see Officers at the studying how air flows past an aircraft in flight. A wind tunnel mounted on the bench provides an air stream over the model aircraft, which can be tilted to various flight altitudes. The flow over the wings is demonstrated by the behaviour of the tufts of wool on their upper surfaces. The wing-tip air-vortices are shown by the spinning of the small windmill held by the Australian wing commander. Photographic negative , Royal Air Force

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Size: 2265px × 2207px
Photo credit: © piemags/ww2archive / Alamy / Afripics
License: Licensed
Model Released: No

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