8. Assessment of Validity of Hypothesis of Constancy of Specific Vacuum Thrust Pulse during SRM Designing and Testing

Annotation: In the phase of designing and developmental testing of short-range missiles with main solid rocket motors, the necessity arises of quick evaluation of propulsion system power characteristics, in particular, determination of specific thrust pulse value and scatter. The use of hypothesis of specific thrust constancy (weak dependence of vacuum thrust pulse on pressure and temperature) allows to considerably simplify the procedure of SRM specific thrust pulse evaluation, thus increasing the efficiency of SRM design calculations and the speed of test results processing, and in some cases, even to considerably reduce the test scope.