Status: Retired 1974. First Launch: 1974-07-14. Last Launch: 1974-07-14. Number: 1 . Payload: 295 kg (650 lb). Thrust: 1,731.00 kN (389,144 lbf). Gross mass: 125,000 kg (275,000 lb). Height: 29.20 m (95.80 ft). Diameter: 3.05 m (10.00 ft).
LEO Payload: 295 kg (650 lb). Payload: 295 kg (650 lb) to a GTO.
Space Test Program flight P73-3 was launched from the Western Test Range, and the payload - Navy Navigation Technology Satellite #1 (NTS-1) - was successfully placed into orbit. Demonstrated navigation technologies leading eventually to Navstar/GPS system. Operated for 5 years.