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.
Credit: NASA
Image Number: L-25332
Date: June 11, 1941
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.
Credit: NASA
Image Number: L-25332
Date: June 11, 1941