Overview
- ISRO conducted a hot test of the SE2000 powerhead at its Mahendragiri Propulsion Complex on June 24, running the Power Head Test Article to 175 tonnes, about 88% of the engine's rated 200‑tonne thrust.
- The PHTA configuration used in the test excludes the thrust chamber but includes turbopumps, pre‑burner and feed systems; the main turbopumps delivered outlet pressures of roughly 400 and 500 bar during the run.
- ISRO said the result provides sufficient confidence to attempt a full 200‑tonne powerhead demonstration next, after which engineers plan full‑engine, long‑duration firings required for flight certification.
- The SE2000 will power the SC120 stage designed to replace the L110 core on LVM3, using liquid oxygen and ISRO's refined kerosene (isrosene) to raise payload capacity and reduce toxic propellant handling risks.
- Program managers emphasize more testing and human‑rating work before crewed flights, note a flight‑ready semi‑cryogenic stage is still likely years away, and ISRO is also discussing near‑term procurement of Russian engines to speed capability gains.