Love it. Hope you do well with a C booster, I found the Estes MIRV extremely underpowered. An 18 mm D Might work.Here is another MIRV-type option, the Seattle Rocket Works MIRV Gryphon.
I made a variation of this where the booster is a single 18mm engine that gap-stages/vents up to the 4 13mm sustainers. (I guess it could fly with only 2 sustainers as well.) I have not finished painting yet, and not flown it yet. I extended the booster body tube with a boat-tail and added some length to the chord of the booster fins, from the original design. I also borrowed from the Estes MIRV design the central dowel that holds the sustainers together on individual lugs.
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I currently have a MIRV in my fleet. I'll second the power issue. If you buy one, don't use a B6-0 for the booster like the package says as an option. Go with the second option of a C6-0. Even that is a bit iffy. Not to be flown in anything but calm winds.done
also built and flew the real MIRV. YMMV, but for me worst rocket ever.
Extraordinarily underpowered booster.
Good point. I think I built this one lighter weight than the stock plans from SRW, and four A-engines in their booster should roughly be equivalent to the impulse of 2 B's or 1 C in this version. The cardstock tubes are probably lighter than the plastic/foam Estes MIRV, and within the 4 oz weight limit of a C6-0 when fully loaded for launch. I just have a base primer coat on there now, and may end up sanding most of that off before final color coat painting.Love it. Hope you do well with a C booster, I found the Estes MIRV extremely underpowered. An 18 mm D Might work.
I put a streamer in an external pod on mine...Plenty of room for a bright streamer in the darts. It's the booster I'm always hunting for.