Technology & Science
ISRO Qualifies Drogue Parachutes for Gaganyaan Crew Module After High-Speed Sled Tests
On 18–19 Dec 2025, ISRO and DRDO fired a rocket-propelled sled at Chandigarh’s RTRS track, cleanly deploying and reefing two 5.8 m drogue parachutes, officially qualifying this critical deceleration stage for India’s first crewed flight.
Focusing Facts
- Both qualification runs at the Rail Track Rocket Sled facility met 100 % of test objectives on 18 & 19 Dec 2025, validating drogue chute reliability across varied flight envelopes.
- Gaganyaan’s crew-module deceleration stack uses 10 parachutes (4 types) in a fixed sequence: 2 apex-cover, 2 drogue, 3 pilot, 3 main.
- During testing, the sled reached roughly 600 km/h, simulating supersonic trans-sonic conditions expected during atmospheric re-entry.
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