Abstract
A modeling technique is described for predicting the relative locations of paratroops and trailing vortices for a formation of transport aircraft. The wake behind each vehicle is treated as a fully rolled up vortex pair with empirical relations used for the vortex decay. The technique is applied to two and six aircraft formations, with the objective being to maximize the distance between the vortices and paratroops, subject to numerous operational constraints. Nineteen sorties were flown using the formations developed. A total of 286 mannequins and 299 live troops were dropped with no paratroop/wake vortex interactions observed. (Author)
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