ISRO successfully conducts hot tests of Gaganyaan propulsion system

ISRO on Wednesday said it has successfully conducted two hot tests of the Gaganyaan Service Module Propulsion System (SMPS), a key advancement for the Gaganyaan human spaceflight mission.

The hot tests were carried out on July 3 at the ISRO Propulsion Complex (IPRC) in Mahendragiri in Tamil Nadu’s Tirunelveli District. “Two short-duration hot tests were conducted for the



30s and 100s to validate the test article configuration. The overall performance of the propulsion system during these hot tests was normal as per pre-test predictions,” ISRO said.

“During the 100s test, simultaneous operation of all RCS thrusters in different modes (steady state; pulsed) along with all LAM engines was also successfully demonstrated,” the agency added.