Rocket Engine, Liquid Fuel, Radiamic, Cutaway; also Designated C-1

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    Rocket Engine, Liquid Fuel, Radiamic, Cutaway; also Designated C-1

    Large bell-shaped nozzle with much smaller constricted nozzle throat at other end and adjoining smaller combustion chamber on top; cooling jacket, around length of combustion chamber and throat; bi-propellant inlet pipes at end of combustion chamber, with adjoining solenoid valve and electrical wire with white plastic insulation; two-thirds of motor cutaway from top of combustion chamber to mid-point along length of the nozzle, showing the internal passages of the two pass cooling jacket and half the interior of the nozzle; nozzle, probably steel; plumbing, gold plated; solenoid valve with black plastic protective screw cap; four red plastic screw caps on pipe ends of plumbing and one other red plastic cover over another pipe; actual engine included a molybdenum nozzle extension, silicone carbide throat insert, and Rokide (RMD-developed high heat resistant ceramic) over cooling jacket passages.

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    Usage Conditions Apply

    There are restrictions for re-using this media. For more information, visit the Smithsonian's Terms of Use page.

    IIIF provides researchers rich metadata and image viewing options for comparison of works across cultural heritage collections. More - https://iiif.si.edu

    View Manifest

    View in Mirador Viewer

    Rocket Engine, Liquid Fuel, Radiamic, Cutaway; also Designated C-1

    Large bell-shaped nozzle with much smaller constricted nozzle throat at other end and adjoining smaller combustion chamber on top; cooling jacket, around length of combustion chamber and throat; bi-propellant inlet pipes at end of combustion chamber, with adjoining solenoid valve and electrical wire with white plastic insulation; two-thirds of motor cutaway from top of combustion chamber to mid-point along length of the nozzle, showing the internal passages of the two pass cooling jacket and half the interior of the nozzle; nozzle, probably steel; plumbing, gold plated; solenoid valve with black plastic protective screw cap; four red plastic screw caps on pipe ends of plumbing and one other red plastic cover over another pipe; actual engine included a molybdenum nozzle extension, silicone carbide throat insert, and Rokide (RMD-developed high heat resistant ceramic) over cooling jacket passages.

    2 of 2

This is a cutaway of the Radiamic liquid fuel thruster of about 100 pounds thrust. It was designated the C-1, or "Common Engine" by the National Aeronautics and Space Administration (NASA).

The C-1 was developed beginning in 1965 by the Reaction Motors Division of the Thiokol Chemical Corporation as a versatile small liquid fuel auxiliary rocket engine adaptable for a number of launch vehicles and spacecraft control systems. However, NASA decided not to go with a common engine and the C-1 never became operational. This engine was donated to the Smithsonian in 1976 by the NASA Marshall Space Flight Center.