This page no longer updated from 31 October 2001. Latest version can be found at J-1 F2

Family: H. Country: Japan. Status: Development.

All-solid rocket motor launch vehicle. Lower cost alternate to the original J-1 design. Uses the SRB-A of the H-2A vehicle as the first stage, the second and third stages of the J-1, with updated avionics.


LEO Payload: 850 kg. to: 250 km Orbit. at: 30.0 degrees. Payload: 600 kg. to a: Space station orbit, 407 km, 51.6 deg inclination trajectory. Liftoff Thrust: 180,000 kgf. Total Mass: 91,500 kg. Core Diameter: 2.5 m. Total Length: 26.2 m.


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Last update 12 March 2001.
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© Mark Wade, 2001 .