Accession Number : AD0782490

Title :   A Study of Techniques for Real-Time, On-Line Optimum Flight Path Control. Three-Dimensional Minimum-Time Flight Paths with Two State Variables.

Descriptive Note : Interim rept. Dec 72-Nov 73,

Corporate Author : AEROSPACE SYSTEMS INC BURLINGTON MA

Personal Author(s) : Bryson, Arthur E., Jr. ; Hoffman, William C. ; Hsin, Chen-Chung

Report Date : JAN 1974

Pagination or Media Count : 37

Abstract : A study of three-dimensional, minimum-time turning maneuvers for supersonic fighter aircraft is described. For turns which do not specify the end-point position, the optimum maneuvers comprise a one-parameter family of flight paths. All the optimum turns, and their associated control variables can be presented in simple graphical form for a specified aircraft configuration. A feedback control diagram can be easily constructed for all minimum-time turns to a specified final energy level. This feedback chart could be implemented in the airborne computer to provide real-time, on-line optimal flight path control. Numerical results for an early model of the F4 fighter illustrate the control technique. (Author)

Descriptors :   *JET FIGHTERS, *TURNING FLIGHT, *SUPERSONIC FLIGHT, *MANEUVERABILITY, FLIGHT CONTROL SYSTEMS, TIME, OPTIMIZATION, FLIGHT PATHS, MATHEMATICAL MODELS, COMPUTER APPLICATIONS, ENERGY LEVELS, THREE DIMENSIONAL.

Subject Categories : Aerodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE