Accession Number : AD0486543

Title :   A SYSTEMS DESCRIPTION OF THE DODCO RE-ENTRY CONTROL AND DISPLAY LOGIC AS UTILIZED ON THE AFFDL AEROSPACE SIMULATOR.

Descriptive Note : Final rept.,

Corporate Author : DODCO INC BLAWENBURG NJ

Personal Author(s) : Dommasch, O. ; laudeman, Charles W.

Report Date : MAY 1966

Pagination or Media Count : 145

Abstract : The results obtained and conclusions reached as a result of research efforts originating in 1959 on lifting re-entry systems have been collected and summarized in a form suited for man-machine simulation study. A new, closed form method for predicting re-entry range footprint capability is described, and complete equation sets and flow charts combining this Ground Area Attainable (GAA) predictor with the DODCO target seeking, override type re-entry control logic are presented. Interface data required to implement these equations on the AFFDL aerospace simulator are included, together with conversion-scaling factors for all parameters involved. Two software system packages for the C-820 system, one a symbolic assembler-interpreter-simulator and the other the DESC (DODCO Executive Simulator Compiler System) are described. These programming tools may be used for any programming task within the capabilities of the C-820 computer. The DESC system permits use of a FORTRAN type source language for programming the C-820 computer, and permits an IBM 7094 computer to write and 'debug' programs for the C-820 system. A list of selected references covering various phases of re-entry dynamics is included.

Descriptors :   *COMPUTER PROGRAMMING), (*BOOST GLIDE VEHICLES, (*ADAPTIVE CONTROL SYSTEMS, BOOST GLIDE VEHICLES), (*FLIGHT SIMULATORS, FLIGHT CONTROL SYSTEMS), MANNED SPACECRAFT, TERMINAL GUIDANCE, TERMINAL BALLISTICS, COCKPITS, CONTROL SYSTEMS, CODING, FLOW CHARTING, TRAINING DEVICES, MAN MACHINE SYSTEMS, SIMULATION, DISPLAY SYSTEMS, ANALOG COMPUTERS, DIGITAL COMPUTERS, INPUT OUTPUT DEVICES, TRANSCENDENTAL FUNCTIONS, MATHEMATICAL PREDICTION, PITCH(MOTION), YAW.

Subject Categories : Test Facilities, Equipment and Methods
      Spacecraft Trajectories and Reentry
      Manned Spacecraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE