The new Semi-cryogenic Integrated Engine and Stage Test facility (SIET) at the ISRO Propulsion Complex (IPRC) in Mahendragiri, Tamil Nadu, is a major boost to the Indian Space Research Organisation’s (ISRO) plans for a reliable, home-grown semi-cryogenic engine for its launch vehicles.
Prime Minister Narendra Modi is scheduled to dedicate the facility to the nation during a visit to the Vikram Sarabhai Space Centre (VSSC) in Thiruvananthapuram on February 27 (Tuesday).
ISRO has been working on semi-cryogenic capabilities for some years now. The Semi-Cryogenic Propulsion System project envisions the design and development of a 2,000 kN semi-cryogenic engine (SCE-2000) which will power the SC-120 rocket stage. In July 2023, the first hot test on an intermediate configuration of the semi-cryo engine was held at Mehendragiri.