Vortex wakes of two transports measured in 80 by 120 foot wind tunnel

Abstract

Measurements are reported on the characteristics of the vortex wakes that trail from 0.03-scale models of a B-747 and a DC-10. Included are the downwash distributions obtained with a hot-film anemometer probe for the standard landing configurations, and the rolling moments induced on various following wings by the vortex wakes of several configurations of both wake-generating models. Both sets of data are presented for downstream distances of 81 and 162 ft, i.e., scale distances of 0.5 and 1.0 mile.