Overview
- ISRO fired the SE2000 Power Head Test Article to 175 tonnes of thrust, about 88% of its 200‑tonne design, in a hot test run that the agency said behaved as predicted.
- The PHTA trial on June 24 validated the engine’s core systems without the thrust chamber by confirming stable start transients and steady operation under high load.
- Engine turbopumps attained outlet pressures near 400 and 500 bar during the run, showing the high‑pressure performance needed for a flight‑ready semi‑cryogenic engine.
- Next steps include a full 200‑tonne powerhead firing, a complete engine hot‑fire and integration planning for the SC120 stage to replace LVM3’s L110 core, while ISRO continues human‑rating and three uncrewed Gaganyaan test flights.
- The semi‑cryogenic design uses liquid oxygen and Isrosene kerosene for cleaner handling, and ISRO is pursuing parallel tracks of indigenous development and possible Russian procurement to speed near‑term payload upgrades.