S12
S12 is ISRO’s standard solid rocket strap-on motor used to augment the PSLV first-stage S139 core in the DL and QL variants.
Identity
- Aliases
- S-12PSLV S12 strap-on motor
- Domains
- spaceflight
- Identity Level
- model
- Kind
- solid-rocket-motor
- Name
- S12
- Status
- active
Details
- Description
- S12 is ISRO’s standard solid rocket strap-on motor used to augment the PSLV first-stage S139 core in the DL and QL variants.
- Propellants
- HTPB
Links
- Official Url
- https://www.isro.gov.in/ISRO_EN/PSLV_CON.html
Assets & Meta
- Creation Time
- August 13, 2026 at 22:35:31 UTC
- Updated Time
- August 13, 2026 at 22:35:31 UTC
Other
- Sources
- Note
- ISRO identifies the S12 strap-on motor, HTPB fuel, and its use in counts of six, four, and two on XL, QL, and DL variants respectively.
- Publisher
- Indian Space Research Organisation
- Title
- Polar Satellite Launch Vehicle (PSLV)
- Note
- ISRO maps PSLV-DL to two S12 strap-on boosters, PSLV-QL to four, and PSLV-XL to six.
- Publisher
- Indian Space Research Organisation
- Title
- Integration and Testing of PSLV Sub-assemblies for ISRO