A pad abort test checks whether a crew capsule can escape safely if a rocket fails on the launch pad.

ISRO ran one on July 5, 2018. The Crew Escape System lifted a 12.6-tonne simulated crew module at 7:00 am IST from Sriharikota. The module rose to 2.7 km, then floated back under parachutes to the Bay of Bengal, 2.9 km away.

The flight lasted 259 seconds and was tracked by nearly 300 sensors. Recovery boats picked up the crew module.

In October 2023, the TV-D1 test flight validated the escape system in flight, making India the fourth country to test this life-saving technology.

The system uses quick-acting solid rocket motors to pull the module away from the launch vehicle in seconds. It is a mandatory safety feature for crewed missions.

It matters for Gaganyaan, India’s first human spaceflight program, which now targets a crewed launch in 2027 after uncrewed test flights. Modern versions are quick-acting solid rocket motors with parachute recovery. Similar escape systems are standard on NASA and SpaceX crewed vehicles.