First Launch: 1959-09-17. Last Launch: 1960-04-01. Number: 2 . Thrust: 668.00 kN (150,172 lbf). Gross mass: 52,000 kg (114,000 lb). Height: 27.80 m (91.20 ft). Diameter: 2.44 m (8.00 ft). Apogee: 1,600 km (900 mi).