The new downwash measurements behind a tapered wing with parallel center section described in the present report can be brought into good agreement with theoretical calculations if made on the basis of not-rolled-up vortex sheet and allowance is made for the lowering of the sheet. The test values are about 1 degree higher than the "upper limit" established for it, as against approximately 0.5 degrees in the earlier tests behind a rectangular and elliptical wing. The measurements on lateral axes, especially if lying below the wing on a level with the vortex train, disclosed in accord with the lift distribution, a marked change in angle over the span of the tail in contrast to the rectangular and elliptical wing.
Investigations on the downwash behind a tapered wing with fuselage and propeller
01.09.1938
Sonstige
Keine Angabe
Englisch
Calculation of downwash behind wing
Engineering Index Backfile | 1938
|Downwash behind two-dimensional wing oscillating in plunging motion
Engineering Index Backfile | 1952
|Prediction of downwash behind swept-wing airplanes at subsonic speed
Engineering Index Backfile | 1955
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