bates grain

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  1. M

    Fuel grain geometry

    Hey guys, I'm currently into building my own motors and was wondering if anyone else out there currently uses star grains? I currently use a bates grain configuration (basically multiple toilet paper roll shapes stacked together with a slight gap between each) but I end up taking a long time to...
    • magnitude_and_direction
    • Thread
    • bates grain calculations diy geometry grains pressure propellant development star grain thrust
    • Replies: 7
    • Forum: Propulsion
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