# ISRO tests semi-cryogenic engine power head at 175 tons thrust 2026-08-05T23:18:46+00:00 | Health & Science | Indian Opinion Desk ISRO carried out a hot test of a semi-cryogenic engine power head at its Propulsion Complex in Tamil Nadu on 24 June, running steadily at 175 tons of thrust, or 88 percent of the eventual target, TheHinduBusinessLine reported. The agency said the result followed earlier tests at 47 percent and 60 percent of thrust and gives it, in its own words, sufficient confidence to attempt a full 200 ton demonstration next. The power head is part of a stage meant to replace the L110 core on India's LVM3 rocket, built around the 2,000 kilonewton SE2000 engine and fuelled by liquid oxygen and kerosene based propellant. ISRO expects the change to raise LVM3's payload capacity and improve its operating efficiency, though further testing and flight certification still lie ahead. ## Indian Opinion Analysis A single successful hot test moves the power head one step closer to the 200 ton demonstration ISRO says it is now ready to attempt, but it is not itself a flight qualified engine, and the account gives no date for that next test or for the certification stage after it. Whether the SE2000 actually raises LVM3's payload capacity is a claim ISRO makes about a stage that has not yet flown. ISRO's next scheduled step, the full 200 ton demonstration, is what would confirm or complicate this account. ## Coverage - TheHinduBusinessLine Tags: ISRO, LVM3 Canonical: https://indianopinion.org/isro-fires-up-next-gen-rocket-engine/ License: Summary and commentary (c) Indian Opinion, reusable with attribution. Facts belong to the linked sources. Cite: https://indianopinion.org/isro-fires-up-next-gen-rocket-engine/#story-in-brief Review state: restored archive article, accurate at time of publication, not offered to search indexes.