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Estes JT-30C
Would like to clone the Estes Astron Mark II (K-2A). Anyone know a source for the JT-30C tube coupler? I can't seem to find it anywhere.
Thanks! Carl |
#2
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If you don't find one, you easily can make a tube coupler by cutting a section out of a larger diameter tube and gluing the section inside as reinforcement. It's a simple and easy process. Slip the cut piece of BT inside the BT-30 tube and mark the overlap to make the 2nd cut. I've done it with BT-20 all the way up to 8" HPR stuff.
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I love sanding. |
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Thanks! That's my 2nd choice. |
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http://www.erockets.biz/bt-30-2/
eRockets.biz sells BT-30 tubes. You could cut a piece and make a coupler as mentioned above. They also sell this solid balsa tube coupler that you could try hollowing out. Just thoughts. Cha
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Charles Russell, MSgt,USAF (ret.) NAR 9790, Lvl 1 SAM "Balls Three" |
#5
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Some scrap BT-50 will work. Might have to massage the shape a tad to make sure it ends up nice and round.
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I love sanding. |
#6
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For the Mark II , I'm guessing you want the fishpaper coupler due to the midbody seperation.
Semroc used to have those, surprised someone doesn't have an extra kicking around. I think, if you had two of the BT20 couplers, maybe peel one layer of paper off the second one, glue on the first to make it larger od - hopefully to fit the BT30 ? Good luck with the project, Mark II was my first ever rocket, and one of the early ones I cloned as well. |
#7
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PS digging through more parts as I unbox the hoard after a few years in limbo - found a couple JT-30C, original vintage.
Drop me a note with address and I'll send you one. AL |
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Thanks AL!!!
PM sent |
#9
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Do you want this kit built like the original one ? If not, just use anything to join the tubes and add nose cone for a regular Mark. But I didn’t read this whole post. I have a box full of vintage Ivory BT 30 And 40 Tubes, and original components ! Danny.
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ENGINE COSTS ARE " OUT OF SIGHT " ..... |
#10
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I can help. Have Lots of them.... Danny
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ENGINE COSTS ARE " OUT OF SIGHT " ..... |
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