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Old 08-13-2018, 06:39 PM
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tbzep tbzep is offline
Dazed and Confused
 
Join Date: Mar 2005
Location: TN
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Quote:
Originally Posted by ghrocketman
There are clone parts semi -kits for the K-21 offered on eBay.
You have to supply the tubes and easy to procure parts.
Not the same as a complete kit, but does include a pre-made fin unit.
I have several Semroc S1B's and one Estes K-29, but no Centuri/Estes 1/100 S1Bs.

I didn't realize that the fin units were available. That's what held me back during the great building binge. Looks like the kits have 3D printed capsules, adapter shrouds and plywood rings. That seems like it would be pretty heavy.

I need to fly low and slow for small field demos. I did see a separate BT-70 fin unit listed which would allow me to scratch build the rest. The original K-21 specs claimed a pair of A8-3's would do the job. I doubt I'd try that, but a pair of B6-4's would probably get me up and down on our school's little playground surrounded by trees.
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