Accession Number : AD0284499

Title :   A MASS POINT TRAJECTORY PROGRAM FOR THE CDC 1604 COMPUTER ROTATING OBLATE EARTH AND 1959 MODEL ATMOSPHERE

Corporate Author : AIR FORCE SPECIAL WEAPONS CENTER KIRTLAND AFB N MEX

Personal Author(s) : PARKER,LOUIS T. JR.

Report Date : AUG 1962

Pagination or Media Count : 1

Abstract : A general-purpose trajectory program for a point mass moving in three degrees of freedom relative to a rotating oblate earth is described. Motion is expressed in terms of the earth coordinates latitude, longitude, and altitude. Outputs include time, range, velocity vector magnitude and orientation, g loading, dynamic pressure, and Mach number. The basic inputs are altitude, latitude, longitude, velocity (relative wind), flight path angle, heading, drag, lift, bank angle of lift, and thrust ( IN LIFT AND RAG IRECTIONS). Table inputs may be used for drag, lift, thrust, and mass, and also for the input parameter print in erval. Other options include inertial velocity input geodetic input/output, nonrotating earth, and Runge-Kutta integration (Adams-Moulton is standard). The program is written in the CODAP language, and is designed to be compatible with the CO-OP monitor. A subroutine ( AVAILABLE SEPARATELY) is used for the 1959 model atmosphere. A de cription is included of program operation equations used, CODAP listing, and sampl cases. (Author)

Descriptors :   *COMPUTERS, *GUIDED MISSILE TRAJECTORIES, ATMOSPHERE MODELS, DRAG, EARTH MODELS, EQUATIONS, ERRORS, FLIGHT PATHS, LIFT, PRESSURE, RANGES (DISTANCE), ROTATION, THRUST, TIME, VELOCITY

Distribution Statement : APPROVED FOR PUBLIC RELEASE