M-V Solid Motor Side Jet
The M-V first-stage solid motor side-jet attitude-control system. It is modeled as an integrated system because JAXA identifies the SMSJ role and four-system M-V installation without publishing a narrower motor model name.
Identity
- Aliases
- M-V SMSJSMSJM-V solid motor side jet
- Domains
- spaceflight
- Identity Level
- integrated-system
- Kind
- integrated-propulsion-system
- Name
- M-V Solid Motor Side Jet
- Status
- retired
Details
- Description
- The M-V first-stage solid motor side-jet attitude-control system. It is modeled as an integrated system because JAXA identifies the SMSJ role and four-system M-V installation without publishing a narrower motor model name.
Links
Assets & Meta
- Creation Time
- August 1, 2026 at 18:14:37 UTC
- Updated Time
- August 1, 2026 at 18:14:37 UTC
Other
- Sources
- Accessed Date
- 2026-08-01
- Note
- JAXA's M-V structure diagram and specifications identify SMSJ/small solid rocket motors as the roll-control hardware associated with the first stage.
- Publisher
- Japan Aerospace Exploration Agency
- Title
- M-V Launch Vehicle brochure
- Accessed Date
- 2026-08-01
- Note
- JAXA states that M-V used four SMSJ systems for first-stage three-axis attitude control, while Epsilon reduced this to two; this supports the M-V count without inventing a motor suffix.
- Publisher
- Japan Aerospace Exploration Agency
- Title
- Epsilon Technology: A Link to the Future