NASA Technical Paper


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NASA Technical Paper


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Ground Vortex Workshop


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Lift and Pitching Moment Induced on Jet STOVL Aircraft Hovering in Ground Effect


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The data obtained during an investigation of the effects of crossflow on the suckdown and fountain effects induced by various arrangements of vertically impinging jets are presented in this report. The jet arrangements included circular and rectangular jets in various single, dual and triple jet configurations. The tests were conducted in the 14 by 22 foot tunnel at the NASA Langley Research Center. Tests covered a range of heights above the ground, nozzle pressure ratios, and forward velocities.













NASA SP.


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