ISRO conducts hot test of Gaganyaan service module propulsion system


ISRO said it has successfully conducted the first hot test of the Gaganyaan Service Module Propulsion System (SDM) System Demonstration Model (SDM) for a period of 450 seconds at the Propulsion Complex Test Facility ( IPRC), Mahendragiri, Tamil Nadu, Saturday.

System performance met test targets and there was a close match with pre-test predictions, the Bengaluru-headquartered space agency said in a statement.

In addition, a series of hot tests are planned to simulate various mission conditions as well as non-nominal conditions, he said.

The service module (SM) is part of the Gaganyaan Orbital module and is located under the crew module and remains connected there until re-entry, explained the ISRO (Indian Space Research Organization).

The SM propulsion system consists of a unified biergol system consisting of five numbers of 440 N thrust motors and 16 numbers of 100 N Reaction Control System (RCS) thrusters with MON-3 and MMH respectively as oxidant and fuel.

“The SDM, consisting of five 440 N engine numbers and eight 100 N thruster numbers, was produced to qualify the performance of the ground propulsion system. A new test facility is established at IPRC, Mahendragiri for test the SDM, ”the statement added. .

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