Encyclopedia Astronautica

Bell exotic LF2/Hydrazine rocket engine. 155.9 kN. Titan 3 upper stage. Developed 1960's. Engine developed for high-energy replacement of Titan 3 transtage in late 1950's / early 1960's. Not flown due to toxicity of propellants.

Application: Titan 3 upper stage..

Propellant Formulation: LF2/MMH+H2O+Hydrazine.

Status: Developed 1960's.
Thrust: 155.90 kN (35,048 lbf).

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Associated Manufacturers and Agencies
  • Bell American manufacturer of rockets, spacecraft, and rocket engines. ARC Liquid Propellant Division, Niagara Falls, NY, USA. More...

Associated Propellants
  • LF2/Hydrazine Liquid Fluorine is the highest performance oxidiser and in the early 1960's it seemed in both American and Russia that a new generation of higher performance engines would emerge. However although test engines were built, fluorine was found to be just too toxic and reactive to be safely used as a propellant. Hydrazine (N2H4) found early use as a fuel, but it was quickly replaced by UDMH. It is still used as a monopropellant for satellite station-keeping motors. More...

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