L40
L40 is ISRO’s liquid-propellant strap-on stage used in four units around the S139 core first stage of GSLV Mk II.
Identity
- Aliases
- L-40GSLV liquid strap-on stage
- Domains
- spaceflight
- Identity Level
- integrated-system
- Kind
- integrated-propulsion-system
- Name
- L40
- Status
- active
Details
- Description
- L40 is ISRO’s liquid-propellant strap-on stage used in four units around the S139 core first stage of GSLV Mk II.
Links
- Official Url
- https://www.isro.gov.in/GSLV_CON.html
Assets & Meta
- Creation Time
- August 13, 2026 at 22:43:10 UTC
- Updated Time
- August 13, 2026 at 22:43:10 UTC
Other
- Sources
- Note
- ISRO states that GSLV uses four liquid strap-on motors, each powered by one Vikas engine, augmenting the S139 solid core.
- Publisher
- Indian Space Research Organisation
- Title
- Geosynchronous Satellite Launch Vehicle Mark II
- Note
- ISRO names the first stage as S139 plus four liquid-propellant L40H strap-on motors.
- Publisher
- Indian Space Research Organisation
- Title
- GSLV-D2 / GSAT-2