ISRO successfully conducts hot test on Gaganyaan's service module propulsion system
The Indian Space Research Organisation recently conducted a hot test on its Gaganyaan Service Module (SM) Propulsion System on 28 August. This was the first hot test of the System Demonstration Model (SDM) of the Gaganyaan SM Propulsion System which differs from the hot test the agency conducted on the Vikas engine. The test was conducted in the ISRO Propulsion Complex (IPRC), Mahendragiri, Tamil Nadu for a duration of 450 seconds. According to an ISRO statement, the system performance met the test objectives and was a close match with pre-test predictions. A series of hot tests will be conducted to simulate various mission conditions as well as off-nominal conditions. The Service Module is part of the Gaganyaan Orbital module and is located below the crew module and remains connected to it until re-entry. On August 28, 2021, ISRO successfully conducted the first hot test of the System Demonstration Model (SDM) of the Gaganyaan Service Module Propulsion System at the test facil
