Crew Escape System (CES)

Source: TH

Context: The Indian Space Research Organisation (ISRO) has highlighted the working of the Crew Escape System (CES) — a critical safety mechanism of the Gaganyaan Mission.

About Crew Escape System (CES):

• What it is? The Crew Escape System is a rapid-acting safety mechanism developed to eject the crew module carrying astronauts away from a malfunctioning launch vehicle during an emergency.

• The Crew Escape System is a rapid-acting safety mechanism developed to eject the crew module carrying astronauts away from a malfunctioning launch vehicle during an emergency.

• Developed by: It has been designed and developed by ISRO as part of the Gaganyaan human spaceflight programme.

• Aim: Its objective is to ensure astronaut survival during critical launch phases by separating the crew module to a safe distance within seconds, even before a catastrophic failure.

• How it works?

• Positioned at the forward end of the LVM3 rocket, CES uses multiple high-burn solid motors that generate greater acceleration than the rocket. In case of a detected anomaly, the Integrated Vehicle Health Management (IVHM) system triggers the CES. The crew module is then pulled away rapidly, followed by multi-stage parachute deployment to ensure a controlled sea splashdown.

• Positioned at the forward end of the LVM3 rocket, CES uses multiple high-burn solid motors that generate greater acceleration than the rocket.

• In case of a detected anomaly, the Integrated Vehicle Health Management (IVHM) system triggers the CES.

• The crew module is then pulled away rapidly, followed by multi-stage parachute deployment to ensure a controlled sea splashdown.

• Types:

• Puller Type (used by ISRO): CES pulls the crew module away using solid motors — adopted in Gaganyaan, Soyuz, and Saturn V missions. Pusher Type: Uses liquid-fuel engines to push the module away — employed in SpaceX Falcon 9.

• Puller Type (used by ISRO): CES pulls the crew module away using solid motors — adopted in Gaganyaan, Soyuz, and Saturn V missions.

• Pusher Type: Uses liquid-fuel engines to push the module away — employed in SpaceX Falcon 9.

• Significance:

• Ensures crew survival even before lift-off or during early ascent, the riskiest flight phase. Demonstrates India’s human-rated launch capability and adherence to international astronaut safety norms.

• Ensures crew survival even before lift-off or during early ascent, the riskiest flight phase.

• Demonstrates India’s human-rated launch capability and adherence to international astronaut safety norms.