Engine Model: RB-211-22B. Designer: Rolls Royce. Propellants: Air/Kerosene. Thrust(vac): 29.400 kN (6,609 lbf). Thrust(sl): 26.700 kN (6,002 lbf). Isp: 9,900 sec. Burn time: 4,590 sec. Mass Engine: 4,180 kg (9,210 lb). Chambers: 1. Thrust to Weight Ratio: 0.71. Country: UK. First Flight: 1990. Last Flight: 2006. Flown: 117. Thrust is maximum sea level thrust; specific impulse is sea level value at that thrust.
RB211 used on Rocket Stages