The Liquid Propulsion Systems Centre (LPSC) of ISRO has successfully completed the integration of the Crew Module’s liquid propulsion system and has sent it off for the first uncrewed mission of Gaganyaan (G1), the space agency announced on Wednesday.
Crew module for Gaganyaan's uncrewed mission | ISRO
Gaganyaan represents ISRO's first venture into developing human spaceflight capabilities. Before sending astronauts into space, the agency plans to launch an uncrewed mission as part of the Gaganyaan project.
On January 21, 2025, LPSC delivered the Crew Module to the Satish Dhawan Space Centre in Sriharikota after successfully integrating its propulsion system, according to ISRO.
The Crew Module Propulsion System (CMPS) uses a bi-propellant-based Reaction Control System (RCS) that ensures precise control of the crew module across three axes: Pitch, Yaw, and Roll. This control will be activated after the service module separates during the descent and re-entry phases and will continue until the parachute-based deceleration system is deployed.
“This system employs 12 100N thrusters, pressurisation system with high pressure gas bottles and the propellant feed system along with the associated fluid control components,” ISRO explained.
The 100 N thrusters, which are compact rocket engines used for spacecraft propulsion, were highlighted by ISRO officials.
Additionally, the Crew Module Uprighting System (CMUS), developed by the Vikram Sarabhai Space Centre (VSSC), was integrated into the module at LPSC. ISRO mentioned that the Crew Module will undergo further integration steps, including the assembly of the avionics package, electrical harnessing, and testing at VSSC before being transferred to the U R Rao Satellite Centre in Bengaluru for the final integration of the Orbital Module.
In other developments, the Union Cabinet, led by Prime Minister Shri Narendra Modi, has given its approval for the construction of a new launch pad at the Satish Dhawan Space Centre in Sriharikota, Andhra Pradesh. This new facility is intended to support future rocket launches by the Indian Space Research Organisation (ISRO) and act as a backup to an existing launch pad at the same location. This initiative is part of ongoing efforts to bolster India's capabilities in space exploration and satellite deployment.
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