A rocket motor design has been carried out using internal-external combustion propulsion, using HTPB-based propellant with cylindrical grain. The thrust vs time curve obtained from the static test of this type of rocket motor shows a neutral profile and even tends to be regressive. The results of the performance of a rocket motor with a propellant length of 70 cm, produce an average thrust of 605 kgf, with a combustion time of 2.74 seconds (ISP: 195 seconds). The type of internal-external burning requires the strength of the rocket motor tube to the thermal load, in addition to the combustion pressure load. The composite rocket motor tube made of carbon fiber and fiber glass is able to withstand the thermal load and pressure of this internal-external burning rocket motor. The connection system between the tube and the nozzle, as well as the tube with the cap, uses a sock system instead of the screw or bolt system commonly used in metal rocket motor tubes.


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    Title :

    Study of internal-external burning solid rocket propellant



    Conference:

    THE 9TH INTERNATIONAL SEMINAR ON AEROSPACE SCIENCE AND TECHNOLOGY – ISAST 2022 ; 2022 ; Bogor, Indonesia


    Published in:

    Publication date :

    2023-12-11


    Size :

    10 pages





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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