Status: Retired 1970. First Launch: 1970-07-10. Last Launch: 1970-10-07. Number: 4 . Thrust: 52.00 kN (11,690 lbf). Gross mass: 420 kg (920 lb). Height: 4.36 m (14.30 ft). Diameter: 0.35 m (1.14 ft). Span: 1.05 m (3.44 ft). Apogee: 90 km (55 mi).
Launched from 1 14-m rail launcher. All three motors ignited at launch. The two boosters separated at T+2,3 seconds and 440 m altitude. The sustainer burned out at T+18 seconds at a velocity of 1540 m/s. The dart then separated and coasted to 90 km altitude, where two payloads were released: a chaff cloud and the parachute-borne Ramses radiosonde.