Epsilon Test Flight Model
The Epsilon Test Flight Model was the original 24-metre, 91-tonne three-stage solid configuration. Its sole flight, Epsilon-1 in September 2013, successfully deployed the SPRINT-A ultraviolet observatory, later named HISAKI.
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Identity
- Aliases
- Epsilon experimental modelEpsilon demonstration model
- Family Name
- Epsilon
- Full Name
- Epsilon Test Flight Model
- Status
- retired
- Type
- rocket
- Variant Name
- Test Flight Model
Details
- Description
- The Epsilon Test Flight Model was the original 24-metre, 91-tonne three-stage solid configuration. Its sole flight, Epsilon-1 in September 2013, successfully deployed the SPRINT-A ultraviolet observatory, later named HISAKI.
- Dimensions
- Diameter M
- 2.6
- Height M
- 24
- First Flight Year
- 2,013
- Last Flight Year
- 2,013
- Operator
- Parent Vehicle Family
- Propulsion Configurations
- Entries
- Nested value
- Nested value
- Nested value
- Name
- Epsilon Test Flight exact three-stage configuration
- Notes
- JAXA distinguishes the original 24 m Epsilon Test Flight Model from the later Enhanced Epsilon. The exact original stack is one SRB-A first-stage motor, one M-34c second-stage motor, and one KM-V2b third-stage motor. The later Enhanced Epsilon SRB-A3/M-35/KM-V2c stack, Epsilon PBS option, and Epsilon S/SRB-3 branch remain separate and are not merged here.
- Rocket Specs
- Liftoff Mass Kg
- 91,000
- Reusability
- expendable
- Stages Count
- 3
Links
- Official Url
- https://global.jaxa.jp/projects/rockets/epsilon/
Assets & Meta
- Creation Time
- July 13, 2026 at 10:38:47 UTC
- Updated Time
- August 1, 2026 at 17:26:46 UTC
- Image
- Download
Other
- Search Name
- Epsilon Test Flight Model Epsilon experimental model Epsilon demonstration model