L-4S Launch Vehicle
L-4S was Japan's first orbital launch vehicle, a four-stage all-solid Lambda configuration derived by adding a kick stage to the L-3H sounding rocket. It served as a precursor and flight-demonstration program for Mu-series orbital-injection methods; the fifth attempt placed Ohsumi, Japan's first satellite, into orbit.
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Identity
- Aliases
- Lambda 4SLambda-4SL-4Sロケット
- Family Name
- L-4S
- Full Name
- L-4S Launch Vehicle
- Status
- retired
- Type
- rocket
Details
- Description
- L-4S was Japan's first orbital launch vehicle, a four-stage all-solid Lambda configuration derived by adding a kick stage to the L-3H sounding rocket. It served as a precursor and flight-demonstration program for Mu-series orbital-injection methods; the fifth attempt placed Ohsumi, Japan's first satellite, into orbit.
- Dimensions
- Diameter M
- 0.767
- Height M
- 16.522
- First Flight Year
- 1,966
- Last Flight Year
- 1,970
- Rocket Specs
- Liftoff Mass Kg
- 9,399
- Payload Capacity Kg
- Leo
- 26
- Reusability
- expendable
- Stages Count
- 4
Links
Assets & Meta
- Creation Time
- July 13, 2026 at 12:07:06 UTC
- Updated Time
- July 19, 2026 at 16:37:51 UTC
- Image
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Other
- Search Name
- L-4S Launch Vehicle Lambda 4S Lambda-4S L-4Sロケット