ISRO Successfully Tests CE20 Cryogenic Engine at 22-Tonne Thrust for LVM3 Rocket
ISRO tested CE20 cryogenic engine at 22-tonne thrust for 165 seconds, boosting LVM3 payload capacity for Gaganyaan and Chandrayaan-4.
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Key Points for RAS
- ISRO successfully conducted a 165-second sea-level hot test of the CE20 cryogenic engine at 22-tonne thrust on March 13, 2026.
- The CE20 engine uses liquid hydrogen and liquid oxygen propellant and powers the upper cryogenic stage (C25) of LVM3.
- The enhanced thrust capability could significantly improve payload capacity of India's heavy-lift rocket LVM3 (Launch Vehicle Mark-3, formerly GSLV Mk III).
- The enhanced performance is critical for Chandrayaan-4 lunar sample return mission and Gaganyaan crewed spaceflight programme.
- LVM3 has a current payload capacity of 4 tonnes to Geostationary Transfer Orbit.
The Indian Space Research Organisation (ISRO) successfully conducted a 165-second sea-level hot test of the CE20 cryogenic engine at 22-tonne thrust on March 13, 2026. The test demonstrated higher thrust capability that could significantly improve the payload capacity of India's heavy-lift rocket, the LVM3 (Launch Vehicle Mark-3, formerly GSLV Mk III). The CE20 engine, which uses a liquid hydrogen and liquid oxygen propellant combination, powers the upper cryogenic stage (C25) of LVM3. The enhanced performance is critical for upcoming missions including the Chandrayaan-4 lunar sample return mission and India's Gaganyaan crewed spaceflight programme. LVM3 has a current payload capacity of 4 tonnes to Geostationary Transfer Orbit.
Frequently Asked Questions
1 What did ISRO achieve with the CE20 cryogenic engine test at 22-tonne thrust for LVM3?
ISRO successfully conducted a 165-second sea-level hot test of the CE20 cryogenic engine at 22-tonne thrust on March 13, 2026. The test demonstrated higher thrust capability that could improve payload capacity of LVM3 (Launch Vehicle Mark-3).
2 What is the ISRO CE20 cryogenic engine used in LVM3 rocket?
The CE20 cryogenic engine is India's cryogenic upper stage engine used in the LVM3 (Launch Vehicle Mark-3) rocket. ISRO tested it at 22-tonne thrust for 165 seconds on March 13, 2026, with the new Nozzle Protection System to enhance payload capacity.
3 Where did ISRO test the CE20 cryogenic engine in 2026?
ISRO tested the CE20 cryogenic engine at the ISRO Propulsion Complex, Mahendragiri, Tamil Nadu on March 13, 2026. The 165-second test at 22-tonne thrust included a new Nozzle Protection System for the LVM3 rocket.
4 What is the Nozzle Protection System tested on ISRO's CE20 cryogenic engine?
The Nozzle Protection System is a new addition to ISRO's CE20 cryogenic engine tested during the 165-second, 22-tonne thrust hot test at Mahendragiri on March 13, 2026. It is designed to protect the nozzle and enhance LVM3's performance.
5 How will ISRO's CE20 cryogenic engine test improve LVM3 payload capacity?
ISRO's CE20 cryogenic engine test at 22-tonne thrust (vs. standard 20 tonnes) demonstrated higher thrust capability. This improved thrust could significantly increase LVM3 (formerly GSLV Mk III)'s payload capacity, expanding India's heavy-lift launch capabilities.
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