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  1. SierraDrinker

    Help with avionics bay - re-drilling bulkheads

    I need some help and advice. I'm building a Madcow 2.2" fiberglass Frenzy XL as my first dual deploy rocket. My threaded rods in the avionics bay are too narrow and I can't fit a 9v battery between them. I can't mount the battery horizontally (no room), nor vertically on the front (no room with...
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