Adaptations to two existing rocket motor performance computer programs were made. MICROPEP, a FORTRAN program developed by the Naval Air Warfare Center Weapons Division, China Lake, California to evaluate theoretical performance of various propellants in rocket motors, was modified to allow calculation of the effects of non-ideal expansion and mixed shifting equilibrium-frozen composition nozzle flow on performance. In addition, the ability to handle vitiated air heaters, to calculate combustion chamber Mach number and to calculate stagnation pressure for airbreathing engines was incorporated. ROCKET, an internal ballistics program written by the Lockheed Corporation and modified by the Naval Air Warfare Center Weapons Division, was updated to purge the program of unused code and allow input of performance losses in both the combustor and nozzle flows.http://archive.org/details/adaptationstomic1094539810Lieutenant, United States NavyApproved for public release; distribution is unlimited
