ISRO achieved an important milestone in the Gaganyaan project by successfully test-firing the Low Altitude Escape Motor of Crew Escape System (CES)
It was test-fired from Sriharikota, Andhra Pradesh
The Crew Escape System (CES) takes away the Crew module of the Gaganyaan mission in case of any eventuality and rescues the astronauts
The LEM is a distinctive special purpose solid rocket motor with four reverse flow nozzles
It generates a maximum sea level thrust of 842 kN (nominal) with a burn time of 5.98 seconds (nominal)
The nozzle end of LEM is mounted at the fore end of the launch vehicle to avoid exhaust plume impingement on the crew module
This necessitates the use of a reverse flow multiple nozzle in this solid rocket motor
The reverse flow nozzle implies the reversal of the exhaust gas flow direction in the nozzle region
CES takes away the Crew module in case of eventuality & rescues the astronauts