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Old 04-11-2018, 11:19 PM
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BEC BEC is offline
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Join Date: Feb 2009
Location: Auburn, Washington
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That's the same basic arrangement as in all the Semroc RTBs - ST-7 motor mount in an ST-9 tube which is inside an ST-10 tube for some portion of the length.

I've built several of those RTBs (and stashed some that I haven't built). I have currently flyable examples of the Aphelion, Mini Hustler and Mini Aero Dart. I don't think I ever availed myself of the Skyhook II.

I've thought of using a Panavia as a parts donor to make an Aphelion that size....
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