mrichhcirm
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- Jul 6, 2013
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So far it's a garden-variety mini - HoJo: Motor mount in, fins on, no launch lugs yet. Where it gets interesting: the new ring-tail I made from a strip of 1/32 plywood, steamed into the hoop you see here, and glued. 6mm chord and sized to fit over existing fin tips.
Why? Well, this kit has a reputation for going unstable under certain conditions unless you add clay nose weight. The real HoJo M50 model had small motors to induce a spin for extra inflight stability. Without those, the scale-size fins are a little small for the job of stabilizing the fat nose. I decided I'd rather move the CP aft than the CG forward. After faking my way thru the added ring fin in OpenRocket, I settled on this approach.
Why? Well, this kit has a reputation for going unstable under certain conditions unless you add clay nose weight. The real HoJo M50 model had small motors to induce a spin for extra inflight stability. Without those, the scale-size fins are a little small for the job of stabilizing the fat nose. I decided I'd rather move the CP aft than the CG forward. After faking my way thru the added ring fin in OpenRocket, I settled on this approach.
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