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.

By Priya Castellano

Focusing Facts

  1. 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.
  2. Gaganyaan’s crew-module deceleration stack uses 10 parachutes (4 types) in a fixed sequence: 2 apex-cover, 2 drogue, 3 pilot, 3 main.
  3. During testing, the sled reached roughly 600 km/h, simulating supersonic trans-sonic conditions expected during atmospheric re-entry.

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