Engine Model: Press Fed 1000k. Designer: TRW. Propellants: N2O4/UDMH. Thrust(vac): 9,793.200 kN (2,201,599 lbf). Thrust(sl): 7,834.500 kN (1,761,266 lbf). Isp: 300 sec. Isp (sea level): 240 sec. Diameter: 4.58 m (15.01 ft). Chambers: 1. Chamber Pressure: 17.01 bar. Area Ratio: 31.00. Thrust to Weight Ratio: 0.00. Country: USA. Status: Study 1968. 1960's designs for 'big dumb booster'..
Press Fed 1000k used on Rocket Stages