Aerospace Garage

PRODUCT PROFILE

CE-20

CRYOGENIC ROCKET PROPULSION

CE-20

India · verified

MAKER

ISRO →isro.gov.inlast verified 6 Sept 2026
COUNTRY
India
PROGRAMME STATUS
verified

Specifications

Function
The engine provides high-altitude propulsion for the upper stages of heavy-lift orbital launch vehicles.
Cycle type
It operates on a gas generator cycle, burning a mixture of liquid oxygen and liquid hydrogen.
Platform fit
It is the primary power plant for the C25 and C32 cryogenic stages of the LVM3 rocket.
Commercial model
The engine is produced for internal government use and integrated into national strategic launch assets rather than sold as a commodity.
Deployment status
The system is fully operational and has been flight-proven on multiple satellite and lunar missions.
Evidence to demand
Continued use is driven by the Indian national space programme's requirements for indigenous heavy-lift and crewed mission capability.

Description

The CE-20 is a high-thrust cryogenic rocket engine designed and manufactured by the Liquid Propulsion Systems Centre of the Indian Space Research Organisation (ISRO). It represents a significant departure from earlier Indian cryogenic designs, moving away from Soviet-derived staged combustion cycles to a simpler, more powerful gas generator cycle using liquid oxygen and liquid hydrogen. The engine was developed specifically to provide the heavy-lift capability required for India’s modern space architecture. This system is not available for private commercial purchase but is integrated directly into the upper stages of the LVM3 heavy-lift launcher. Major programmes relying on this propulsion include the Chandrayaan lunar missions and the Gaganyaan human spaceflight initiative. The engine is a core component of the C25 and C32 cryogenic stages, which are responsible for placing large communication satellites into Geostationary Transfer Orbit. Buyers and strategic partners should note that the engine is currently undergoing stringent modifications to meet human-rating standards. The Aerospace Garage desk would seek to verify the specific structural reinforcements and reliability metrics achieved for the human-rated variant (HRLV). Key technical risks involve the long-term durability of the turbopump assemblies and the consistency of regenerative cooling performance during extended burn periods required for deep-space trajectories.

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LAST VERIFIED

6 Sept 2026

SOURCE CITATION

Maker website on record

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