Archive · 20 Nov 2025
ISRO Achieves World-First: CE20 Cryogenic Engine's Boot-Strap Mode Start
ISRO tested a special way to start their powerful CE20 engine without extra help, making it ready for multiple starts in space.
This is a first for this type of engine, and it's important for future space missions like Gaganyaan and multi-orbit missions.
ISRO demonstrated the boot-strap mode start of the CE20 Cryogenic engine
The test lasted 10 seconds under vacuum conditions
The engine is a key component of the LVM3 rocket's upper stage
This achievement enables multiple in-flight restarts for future missions
ISRO claims this is a world-first for a gas-generator cycle cryogenic engine
- Who
- ISRO
- What
- Demonstrated boot-strap mode start of CE20 Cryogenic engine
- When
- November 7, 2022
- Where
- ISRO Propulsion Complex, Mahendragiri
- Why
- To enable multiple in-flight restarts for future missions
ISRO's Achievement
Global Space Community
World-First
ISRO's Achievement
ISRO claims this is a world-first for a gas-generator cycle cryogenic engine.
Global Space Community
Unconfirmed by global space community.
- Engine
- CE20 Cryogenic engine
- Rocket
- Launch Vehicle Mark-3 (LVM3)
- Test Duration
- 10 seconds
- Test Conditions
- Vacuum
- Future Use
- Gaganyaan missions and multi-orbit missions
