Accession Number : AD0761685

Title :   Long-Range Energy-State Maneuvers for Minimum Time to Specified Terminal Conditions,

Corporate Author : AEROSPACE SYSTEMS INC BURLINGTON MA

Personal Author(s) : Parsons, M. G. ; Bryson, A. E., Jr. ; Hoffman, W. C.

Report Date : 1973

Pagination or Media Count : 8

Abstract : Some three-dimensional minimum-time paths to a specified final line (or point), heading and energy are presented for an example supersonic aircraft. The optimum maneuvers have been determined using the calculus of variations and the energy-state approximation. These are compared with suboptimal solutions obtained with the additional assumption that only three discrete values of bank angle are available. Constraints on thrust, Mach number, angle-of-attack, dynamic pressure and load factor are included. For ranges long enough that maximum velocity is attained en route, the initial and final arcs can be determined separately, which greatly simplifies the solutions. (Author)

Descriptors :   *FLIGHT PATHS, *SUPERSONIC AIRCRAFT, OPTIMIZATION, FLIGHT PATHS, SUPERSONIC FLIGHT, AERODYNAMIC LOADING, ANGLE OF ATTACK, TURNING FLIGHT, NUMERICAL ANALYSIS.

Subject Categories : Aerodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE