Engine Model: RJ47. Designer: Wright. Propellants: Air/Kerosene. Thrust(vac): 44.600 kN (10,026 lbf). Isp: 1,200 sec. Burn time: 10,300 sec. Chambers: 1. Country: USA. Status: Development ended 1958. Thrust is maximum thrust at cruise altitude. Specific impulse is that at cruise design point.