JAL3
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After the trench was already cut, I remembered something that I wished I had remembered before cutting. First Flight has said that this rocket sometimes has problems with motors bigger than D12 due to the sloped nose. The shape causes to rocket not to fly straight. I remembered being told of a fix for this and contacted First Flight to find out what it was.
I'm not sure I buy that, unless the bigger motor was an E9...and then it's more likely and thrust/weight/drag issue. Also, will the canted fins really add enough spin to stabilize it? I don't know. The issues seen shouldn't be due to the overall profile as much as irregularities in its profile, the motor tube being not perfectly in the center, the fins not being on perfectly straight etc. I'd build mine with a straight set of fins and go for that 29mm mount (unless its a beta test build.)
I'm not sure I buy that, unless the bigger motor was an E9...and then it's more likely and thrust/weight/drag issue. Also, will the canted fins really add enough spin to stabilize it? I don't know.
The issues seen shouldn't be due to the overall profile as much as irregularities in its profile, the motor tube being not perfectly in the center, the fins not being on perfectly straight etc.
I'd build mine with a straight set of fins and go for that 29mm mount (unless its a beta test build.)
Yes, it will even with the E9. It's not the best, but it works.
Trust me. I tried several flights with D12-3 and E9. D12 boosts were quick and deployed at low altitude. E9 flights were shaped like rainbows with the deployment occurring back at ground level (ugly, to say the least). The nose cone is severely sloped on one side. The flight tended to arc away from the sloped side.
Charlaine did one with the 24mm mount and canted fins and has had a few good straight, though spinning, flights. It could benefit from more power, for sure, but I think an E9 motor will work as long as it spins a bit.
Looks interesting! ;o)
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