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Context:
ISRO has successfully demonstrated the bootstrap mode start of the CE20 cryogenic engine—which powers the upper stage of the LVM3 rocket—marking a major step toward enhancing mission flexibility and multiple-restart capability for future launches.
Key Details of the Test:
Test Conducted Under Vacuum
- Location: High-Altitude Test (HAT) Facility, ISRO Propulsion Complex, Mahendragiri.
- Date: November 7.
- Duration: 10 seconds.
- Conducted under vacuum conditions, simulating space environment.
What Is Bootstrap Mode Start?
- A method where the engine initiates ignition and builds up to stable operation without any external start-up assistance.
- Eliminates the need for start-up gas bottles required for each restart in current systems.
Why This Matters
Enables Multiple In-Flight Restarts
Future missions—especially multi-orbit deployments and complex space manoeuvres—require the CE20 engine to restart multiple times.
- Bootstrap mode reduces hardware requirements.
- Enhances mission flexibility and launch efficiency.
Reduces Weight and Increases Payload Capacity
- Removing start-up gas bottles and associated systems will free up mass.
- This can potentially increase payload capability for LVM3 missions.
Key for Advanced Missions
- Multi-orbit payload deployment.
- Interplanetary missions requiring multiple burns.
- Human spaceflight scenarios needing extra manoeuvrability.
