ISRO has successfully conducted 3 major tests of the Gaganyaan crew module systems, marking another important milestone in India’s human spaceflight mission. The space agency announced the successful completion of the tests on Sunday, July 12, 2026.
The first test focused on one of the most critical crew safety requirements—ensuring the crew module remains upright after splashdown in the sea. To achieve this, ISRO developed and tested a stored cold-gas-based Crew Module Uprighting System (CMUS).
“A system-level qualification test setup consisting of all the elements of CMUS (crew module uprighting system) was realised and successful inflation tests were conducted for the primary inflation module wherein stored gas in the high-pressure gas bottle was made to inflate the flotation by operating the control valves,” the space agency said.
The second test evaluated the separation of the umbilical mechanism that connects the crew module, where astronauts live, with the service module, which provides power and propulsion. The mechanism consists of 2 components—CSU-1 on the crew module side and CSU-2 on the service module side.
During Earth re-entry, the service module separates from the crew module after CSU-1 disconnects. Just before re-entry, CSU-2 is also detached. “Separation test of CSU-2 from the simulated crew module was carried out. The test demonstrated the clean separation of CSU-2 as well as the structural stability of the crew module panel and their interfaces,” ISRO said.
The third test verified the structural integrity of the crew module during the apex cover separation event. The apex cover protects the parachutes and related subsystems throughout the mission and is detached before the parachutes are deployed to slow down the crew module during its descent.
Also read: Viksit Workforce for a Viksit Bharat
Do Follow: The Mainstream LinkedIn | The Mainstream Facebook | The Mainstream Youtube | The Mainstream Twitter
About us:
The Mainstream is a premier platform delivering the latest updates and informed perspectives across the technology business and cyber landscape. Built on research-driven, thought leadership and original intellectual property, The Mainstream also curates summits & conferences that convene decision makers to explore how technology reshapes industries and leadership. With a growing presence in India and globally across the Middle East, Africa, ASEAN, the USA, the UK and Australia, The Mainstream carries a vision to bring the latest happenings and insights to 8.2 billion people and to place technology at the centre of conversation for leaders navigating the future.