Lift System Induced Aerodynamics of V/STOL Aircraft In a Moving Deck Environment. Volume I. Technical Discussion.

摘要

The propulsive lift system induced aerodynamics of multi-jet V/STOL aircraft configurations were experimentally evaluated over a moving deck and at static hover conditions. Several model configurations representative of advanced subsonic and supersonic V/STOL aircraft were tested. Dynamic jet-induced force and moment data were obtained for heaving, pitching, and rolling motions of a simulated seaborne landing platform over a range of heights, amplitudes, and frequencies. Configuration effects were assessed at both static hover and deck motion conditions, including the effects of wing height, fuselage contouring, lift improvement devices, and nozzle arrangement. In addition, tests were performed to separate the effects of deck motion on the fountain impingement forces. Empirical procedures were defined to aid in predicting the dynamic jet-induced forces and moment variations with deck motion. Configuration design and model testing guidelines for V/STOL aircraft are described. Recommendations are also made for further research to provide additional information required to develop generalized prediction procedures. (Author)