Isro completes key propulsion system growth for Gaganyaan

BENGALURU: Isro has efficiently accomplished the event of the Service Module Propulsion System (SMPS) for the Gaganyaan human spaceflight mission, marking a milestone within the programme’s progress. The qualification take a look at programme concluded with a full-duration scorching take a look at of the SMPS that lasted 350 seconds. “The take a look at, carried out on July 11, validated the propulsion system’s built-in efficiency for an off-nominal mission profile involving a service module-based mission abort. The system carried out usually, as predicted,” Isro stated.The service module of Gaganyaan is a regulated bi-propellant propulsion system. It permits orbit circularisation, on-orbit management, de-boost manoeuvres, and gives abort functionality throughout ascent. “The principle propulsive power comes from the Liquid Apogee Motor (LAM) engines, whereas Response Management System (RCS) thrusters guarantee correct perspective management,” Isro stated.To assist testing, Isro developed a System Demonstration Mannequin (SDM) replicating the fluid circuit of the SMPS, together with propellant feed, helium pressurisation, flight-qualified thrusters, and management elements. This testbed underwent 25 checks underneath each regular and off-nominal situations, totalling 14,331 seconds, to satisfy varied mission and human-rating necessities.The SMPS was developed by the Liquid Propulsion Programs Centre (LPSC), and all checks have been carried out on the Isro Propulsion Advanced in Mahendragiri.