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Experimental Low-Drag Test Panel on Douglas B-18

Description (1941) In the spring of 1941 Langley installed an experimental low-drag test panel on the wing of a Douglas B-18 airplane. The panel was fitted with suction slots and pressure tubes for a free flight investigation of the transition from laminar to turbulent flow in the boundary layer. The pressure at each tube was measured by liquid manometers installed in the fuselage.

 

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Credit: NASA

Image Number: L-25332

Date: June 11, 1941

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Uploaded on June 11, 2024
Taken on June 11, 1941