Science TechnologySunday, 12 July 2026·The Hindu - National
ISRO Gaganyaan crew module tests: uprighting, separation and apex cover validation
ISRO on July 12, 2026 said it completed three major Gaganyaan crew module system tests, including uprighting after splashdown and separation checks.
Key highlights
Direct fact
In July 2026, ISRO said it successfully completed three major tests of the Gaganyaan crew module systems, including splashdown uprighting, CSU-2 separation and apex cover separation validation.
Key specifics
- The crew module uprighting system (CMUS) was tested with a stored cold-gas-based system after sea splashdown.
- ISRO conducted inflation tests using a high-pressure gas bottle and control valves in the CMUS setup.
- The umbilical mechanism has two parts: CSU-1 on the crew module side and CSU-2 on the service module side.
- During re-entry, the service module separates first after CSU-1 disconnects, and CSU-2 is separated just before re-entry.
- The apex cover protects parachutes and associated subsystems and is separated before parachute deployment.
Exam lens
Science & technology MCQ focus: Gaganyaan, CMUS, CSU-1/CSU-2, apex cover, splashdown safety. TNPSC may ask which system keeps the crew module upright after sea landing.