04-17-2019, 09:29 PM
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Master Modeler
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Join Date: Jan 2009
Location: Fairbanks, Alaska
Posts: 6,507
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Quote:
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Originally Posted by tbzep
A C11-3 might just do it justice. If not, a pair of B6-2's probably will, if a mount can be squeezed in.
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Hmmm...that's an interesting possibility, which would be much easier to implement in such 3D printed (rather than injection-molded) models. The 1:125 scale Cox Saturn IB was made that way, being able to accommodate either a single 24 mm x 70 mm D12 motor (a short-delay C11 might have worked, too) or two 18 mm x 70 mm motors. It came with two black plastic "squeeze-tab" motor ring retainer clips, an oblong one for the double-18 mm motor arrangement and a circular one for the 24 mm motor (the 24 mm one was thick-walled enough to cover the edges of the 18 mm motors' openings, so that the 24 mm motor's ejection charge would pressurize the body and eject the "nose cone"--the SLA adapter and everything from it to the CM escape tower--and the parachute(s) and shock cord). Since the Boyce Aerospace Hobbies Saturn I/IB models use kraft paper body tubes and 3D printed plastic parts, the S-I (or S-IB) first stage tankage could serve as one or more "stuffer tubes," leaving a smaller interior volume that would need to be pressurized in order to eject the "nose cone" and the recovery system. |