Manufacturer: ISAS. Launches: 2. Success Rate: 100.00%. First Launch Date: 1984-01-17. Last Launch Date: 1994-09-16. Launch data is: complete. Version:

ST-735. Test vehicle.

Two stage vehicle consisting of 1 x ST-735 + 1 x ST-735 stage 2

Launches: 2. First Launch Date: 1984-01-17. Last Launch Date: 1994-09-16. Apogee: 120 km (70 mi). Liftoff Thrust: 0 N ( lbf). Total Mass: 7,400 kg (16,300 lb). Core Diameter: 0.74 m (2.42 ft). Total Length: 4.60 m (15.00 ft).

• Stage1: 1 x ST-735 1-1. Gross Mass: 7,400 kg (16,300 lb). Motor: 1 x ST-735-1. Length: 4.60 m (15.00 ft). Diameter: 0.74 m (2.42 ft). Propellants: Solid.

• Stage2: 1 x ST-735-2. Gross Mass: 4,000 kg (8,800 lb). Motor: 1 x ST-735-2. Length: 2.00 m (6.50 ft). Diameter: 0.74 m (2.42 ft). Propellants: Solid.

1984 January 17 - Kagoshima L. ST-735-1 ST-735-1 SRB Sep test Agency: ISAS. Apogee: 50 km (31 mi).

1994 September 16 - 04:00 GMT - Kagoshima L. ST-735 ST-735-2 FIH test Agency: ISAS. Apogee: 118 km (73 mi).