The Epsilon Launch Vehicle: Status and Future

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R. Yamashiro et al. (2018), JBIS, 71, pp.426-430

Refcode: 2018.71.426
Keywords: Solid Propellant, Solid Motor, Payload Environment, Launch Operation, M-V, Epsilon

The Epsilon Launch Vehicle (LV) is a next-generation solid propellant rocket developed in a Japanese national program led by JAXA. After the completion of the development, it is positioned as a Japanese flagship LV and plays a key role in securing Japan's autonomous capability to launch small satellites for observation and scientific missions. It also offers greater launch opportunities to small satellites for commercial missions. The Epsilon is a highly-reliable space transportation system fully reflecting Japanese rocket technology long accumulated through many vehicle programs such as the former M-V and currently operated H-IIA/B LVs. The Epsilon offers user-friendly launch services with newly incorporated technologies, such as next-generation ground support / check-out systems, highly accurate orbit injection system, and advanced techniques improving the payload environment. Our immediate plan is to launch the fourth Epsilon carrying multiple payloads mounted on a newly developed PAF (Payload Attach Fitting). At the same time, aiming to create synergy effect, we have been developing parts and components to be shared with the H3 Launch Vehicle, Japanese large- size next-generation launch vehicle. Looking further ahead, we have started the concept study for the future Epsilon.

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