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 10, 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.
ISRO Successfully Tests CE20 Cryogenic Engine at 22-Tonne Thrust for LVM3 Rocket
AQuick answer
ISRO tested CE20 cryogenic engine at 22-tonne thrust for 165 seconds, boosting LVM3 payload capacity for Gaganyaan and Chandrayaan-4.
Key facts
- 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.
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Frequently asked questions
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)**.
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.
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.
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.
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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