Gross Mass: 3,600 kg (7,900 lb). Empty Mass: 300 kg (660 lb). Thrust (vac): 132.085 kN (29,694 lbf). Isp: 294 sec. Burn time: 87 sec. Propellants: Solid. Isp(sl): 0 sec. Diameter: 1.50 m (4.90 ft). Span: 1.50 m (4.90 ft). Length: 2.70 m (8.80 ft). Country: Japan. No Engines: 1. Engine: M-3B-J. Status: In development. First Flight: 1996. Last Flight: 1996. No Launched: 1. Other designations: M-3B.