This page no longer updated from 31 October 2001. Latest version can be found at HIMES

Gross Mass: 13,600 kg. Empty Mass: 3,100 kg. Thrust (vac): 28,000 kgf. Isp: 452 sec. Burn time: 167 sec. Propellants: Lox/LH2 Isp(sl): 340 sec. Diameter: 2.4 m. Span: 9.3 m. Length: 13.6 m. Country: Japan. No Engines: 2. HIMES Status: Study.
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Last update 12 March 2001.
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© Mark Wade, 2001 .