A Six Degrees of Freedom Trajectory Program for Rigid Multi-Stage Rocket Propelled Vehicles Including a Special Abridgement to Compute Bomblet Trajectories

摘要

This note describes a program to compute trajectories of a missile having up to three stages. The vehicle is considered to be a rigid body with any number of fins and possessing six degrees of freedom in space. The program includes the effects of certain launcher constraints, pulse rockets, jet damping, thrust misalignment, aerodynamic and mass asymmetries, and the rotation of the earth. Provision is made for the inclusion of Magnus moments in addition to yaw induced forces and moments tabulated as functions of Mach number, roll orientation and incidence. The program is written in FORTRAN II for an IBM 7090 computer. A listing of the program is presented. In addition, a shortened version of the program, particularly suited to the simulation of bomblet trajectories, is outlined, and variations of this abridged version from the main program are noted. (Author)