Thiokol 260-SL Nozzle Development Program
THIOKOL CHEMICAL CORP BRUNSWICK GA SPACE BOOSTER DIV
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Static test of the 15C-2C-1 rocket motor provided useful data on the design, ablative materials, and fabrication techniques used in the manufacture of the nozzles for the 156- and 260-inch diameter solid propellant rocket motors. Nozzle erosion rates were higher than predicted, however, demonstration of a tape-wrapped ablative, steel-jacketed nozzle for a three-million pound thrust solid-propellant rocket motor was considered a success. The nozzle test also demonstrated that facilities exist that are suitable for manufacture of tape-wrapped ablative components for use in nozzles of this size. The assembly and shipping of the nozzle proved that a method of handling can be devised for such large ablative structures.