Design and In-Orbit Performance of the Heat Shield Insulation for Liquid Apogee Motor of INSAT-2A and INSAT-2B

A super insulated (multi layer insulation) heat shield has been designed and implemented for the 440 N Liquid Apogee Motor (LAM) of INSAT-2A and INSAT-2B satellites. The design had been arrived at its final configuration after a series of test and detailed analysis of the test data. An effective conductivity and emissivity for the shield insulation assembly was estimated and used for predicting the flight performance.