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Engine Model: J57-19. Designer: Pratt and Whitney. Propellants: Air/Kerosene. Thrust(vac): 53.800 kN (12,095 lbf). Thrust(sl): 48.900 kN (10,993 lbf). Isp: 5,142 sec. Burn time: 48,000 sec. Chambers: 1. Country: USA. Status: Out of production. First Flight: 1959. Last Flight: 1968. Flown: 2,712.

Thrust is maximum sea level thrust; specific impulse is sea level value at that thrust.

Engine Model: J57-8. Designer: Pratt and Whitney. Propellants: Air/Kerosene. Thrust(vac): 45.400 kN (10,206 lbf). Thrust(sl): 41.200 kN (9,262 lbf). Isp: 1,414 sec. Burn time: 3,000 sec. Chambers: 1. Country: USA. Status: Out of production. First Flight: 1960. Last Flight: 1962. Flown: 7.00.

Thrust is maximum sea level thrust; specific impulse is sea level value at that thrust.

J57 used on Rocket Stages
  • Used on stage: B-52. on launch vehicle: X-15.
  • Used on stage: F-6. on launch vehicle: Caleb.
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