[Illustration: 54. LR-87 engine in Titan on launch stand.]
The LR-87 was a twin-chamber liquid-propellant rocket engine developed
to power the Titan I intercontinental ballistic missile. The engine
developed a total thrust of 136,078 kilograms (300,000 pounds) at sea
level. It burned liquid oxygen and a grade of aviation kerosene. The
combustion chambers were gimbal mounted to allow them to swivel,
controlling the missile trajectory during the powered phase of flight.
The engine was developed by Aerojet General Corporation.
[Illustration: 55. LR-87 engine just after suspension in the
museum.]
The LR-87 on exhibit is from the U.S. Air Force.