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Epsilon S Launch Vehicle

Epsilon S is the preflight successor to Enhanced Epsilon, jointly pursued by JAXA and IHI Aerospace to improve launch cost, schedule responsiveness, and satellite compatibility while sharing technology with H3. JAXA plans its first vehicle as Epsilon-7; development remains underway following second-stage motor static-test anomalies.

Epsilon S Launch Vehicle
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Identity

Aliases
Epsilon SイプシロンSロケット
Family Name
Epsilon
Full Name
Epsilon S Launch Vehicle
Status
development
Type
rocket
Variant Name
S

Details

Description
Epsilon S is the preflight successor to Enhanced Epsilon, jointly pursued by JAXA and IHI Aerospace to improve launch cost, schedule responsiveness, and satellite compatibility while sharing technology with H3. JAXA plans its first vehicle as Epsilon-7; development remains underway following second-stage motor static-test anomalies.
Operator
Parent Vehicle Family
Rocket Specs
Reusability
expendable
Stages Count
3

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Creation Time
July 13, 2026 at 10:38:57 UTC
Updated Time
July 19, 2026 at 11:40:33 UTC

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Search Name
Epsilon S Launch Vehicle Epsilon S イプシロンSロケット