Time-optimal reorientation maneuvers for a combat aircraft
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Bocvarov, Spiro↗
Engineering topics
Bocvarov, Spiro
Publications and source records attributed to Bocvarov, Spiro.
Significance of the dihedral-effect for a combat aircraft in rapid fuselage-reorientation maneuvers
In the quest for understanding problems of supermaneuverability for combat aircraft, a study is presented about the role the dihedral-effect can have in fuselage-reorientation maneuvers that involve high angles of attack. A mathematical model for attitude maneuvers is developed, which accurately represents the High Angle-of-Attack Research Vehicle, including thrust-vectoring generated propulsive moments. The fuselage-reorientation problem is posed as an unconstrained time-optimal control problem. Results for a few families of extremal trajectories are obtained, and the global role of the dihedral effect in the course of the corresponding maneuvers is discussed. In addition, a detailed case-study is presented for an extremal trajectory which utilizes the dihedral effect with considerable benefit.
Bocvarov, Spiro↗
The balance and harmony of control power for a combat aircraft in tactical maneuvering
An analysis is presented for a family of regular extremal attitude-maneuvers for the High Angle-of-Attack Research Vehicle that has thrust-vectoring capability. Different levels of dynamic coupling are identified in the combat aircraft attitude model, and the characteristic extremal-family motion is explained. It is shown why the extremal-family trajectories develop small sideslip-angles, a highly desirable feature from a practical viewpoint.
Bocvarov, Spiro↗