M-4S Launch Vehicle
M-4S was the first operational generation of Japan's Mu orbital launch-vehicle series. The four-stage all-solid rocket used a gravity-turn trajectory with fin and spin stabilization, and established the Mu program by orbiting Tansei, Shinsei, and Denpa after its first-flight failure.
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Identity
- Aliases
- Mu-4SM-4Sロケット
- Family Name
- M-4S
- Full Name
- M-4S Launch Vehicle
- Status
- retired
- Type
- rocket
Details
- Description
- M-4S was the first operational generation of Japan's Mu orbital launch-vehicle series. The four-stage all-solid rocket used a gravity-turn trajectory with fin and spin stabilization, and established the Mu program by orbiting Tansei, Shinsei, and Denpa after its first-flight failure.
- Dimensions
- Diameter M
- 1.41
- Height M
- 23.6
- First Flight Year
- 1,970
- Last Flight Year
- 1,972
- Parent Vehicle Family
- Rocket Specs
- Liftoff Mass Kg
- 43,600
- Payload Capacity Kg
- Leo
- 180
- Reusability
- expendable
- Stages Count
- 4
Links
Assets & Meta
- Creation Time
- July 13, 2026 at 12:01:27 UTC
- Updated Time
- July 19, 2026 at 12:27:50 UTC
- Image
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Other
- Search Name
- M-4S Launch Vehicle Mu-4S M-4Sロケット