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WIND TUNNEL STUDIES OF THE PRESSURE DISTRIBUTION AND THE FLOW FIELD IN THE WAKE OF THE LOCKHEED C-141A STARLIFTER JET TRANSPORT AIRCRAFT.
Final rept. Aug 66-Jun 67,
MINNESOTA UNIV MINNEAPOLIS DEPT OF AERONAUTICS AND ENGINEERING MECHANICS
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Wind tunnel studies of a 156 scale non-powered model of the C-141A jet transport indicate the following characteristics of the flow field which affect the deployment of paratroops and cargo from the side doors and from the rear cargo ramp downwash occurs across the side doors when the petal doors are closed, the flow beneath the side doors is inclined toward the centerline and upwash occurs between and behind the petal doors when the doors are open 65 degrees. An analytic approximation of the effect of engine exhaust on the wake shows that the performance of a single parachute may not be significantly affected, but that of clustered extraction parachutes would be influenced by the engine slipstream. Author
APPROVED FOR PUBLIC RELEASE