5:1 ratio nosecones

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  1. K'Tesh

    A few HPR questions...

    As much time I've spent researching model rockets, I have a few HPR questions that I've yet to wrap my head around. I'll admit, I've not spent much time trying to answer these questions myself (I'm really sleep deprived right now). I know that NAR frowns on metal being used for model rockets...