I'm looking for whom makes an upscale Estes BNC-50Y\PNC-50Y shaped nose cone for a 4" OD-3.9" ID tube. I can't find any reference to the shape to know.
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Closest will be a 5:1 nosecone, the PNC/BNC-50Y is a 4.45:1 ratio and it looks to be a somewhat standard ogive nose cone. MAC Performance and Giant Leap Rocketry both carry the plastic Pinnacle Nosecone which is a 5:1 and would be a close match for the 50Y. I like Pinnacle nosecones fairly sturdy but much lighter than FG.
I recognized it immediately... Nice Job on the upscale.I modified your file. I changed it to the 54 mm LOC mount
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