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Gaganyaan Crew Safety: Escape Systems and Protocols

15 April 20251 min read
SCIENCE & TECHNOLOGYGaganyaan CrewSafety: EscapeSystems andProtocols15 April 2025safalsetu.com

Why in the news

ISRO detailed how crew safety is planned for India’s first human spaceflight across its riskiest stages.

Key facts

  • Launchpad: Sriharikota pad has ziplines and a fireproof bubble lift, a lesson from Apollo-1 (1967).
  • CES: tractor-type solid-fuel tower on the human-rated LVM3 pulls the crew module away; SpaceX uses a pusher type.
  • Escape motors: LEM (low altitude) and HEM (high altitude).

Capsule

ModuleRole
Crew ModuleLiving quarters
Service ModuleEngines, fuel, propulsion; detaches after mission
  • Thrusters manage a controlled reentry if evacuation is needed; parachutes help the descent.
  • Crew train for emergency docking and refuge zones, though Gaganyaan will not dock.

Exam angle

  • Tractor versus pusher escape system; LEM and HEM.

Test yourself

1. Which type of Crew Escape System will the human-rated LVM3 for Gaganyaan use?

A tractor-type CES sits atop the crew module.

2. The launchpad safety features for Gaganyaan were inspired by which past accident?

The notes cite the Apollo-1 tragedy of 1967.

3. In Gaganyaan's capsule, which module holds the engines, fuel and propulsion?

The Service Module carries engines, fuel and control.