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  1. L

    Cardboard vs Fiberglass for minimum diameter

    I have used Giant Leap Magnaframe in 38mm and 2.56 diameters up to Mach 1.3. I flew my scratch built to just under 16,000 ft in a 2.56inch rocket near minimum diameter on a 54mm CTI K-490 (five grain). I also flew a K-780 in it with some wind effect, which reduced the altitude. I am nervous...
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    upgrading to kevlar

    Kevlar with reefing. Reefing is taking several loops of shock cord and taping them together with electrical tape. The loops are 4-6 inches each (depending on rocket size) and three to 6 loops per bundle, typically, and are z-folded before placing at least two wraps of tape around the middle...
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    Setting up the VX-8GR and TH-D72 for BeeLine GPS

    I have the Yaesu 8-GR with the Big Red Bee 70cm GPS (16mw version) and it works well (so far...). I got the spare 1800 mah battery pack, car charger, the Arrow 7 element Yagi with SMA to BNC adapter (VX-8GR is SMC female, so antenna requires SMC male) and Bag, and a Diamond SRH77CA (with male...
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    GPS tracker over mach 2

    I have had a Big Red Bee 70cm to Mach 1.5 mounted on a small piece of basswood, wrapped in small bubble wrap, and stuffed into the nosecone. On this flight the main never deployed (apogee separation did work) so it hit harder than I'd like. (It is a Neo Blox not a Lassen based chip set)...
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