An empirical method has been developed to predict the propulsive-induced forces on a V/STOL aircraft hovering in proximity of the ground. This method is applicable to configurations employing two, three, or four circular exhausts. Planform contour, nozzle pressure ratio, and lift improvement devices are considered. Accuracies on the order of one percent of propulsive thrust are demonstrated. (Author)
V/STOL Propulsion-Induced Aerodynamics Hover Calculation Method
1980
132 pages
Report
No indication
English
Aircraft , Aerodynamics , Vertical takeoff aircraft , Short takeoff aircraft , Flow fields , Mathematical prediction , Hovering , Aerodynamic loading , Exhaust gases , Ground effect , Jet flow , Jet engine inlets , Air , Entrainment , Aerodynamic characteristics , Mathematical models , AV-8A aircraft , VAK-191B aircraft