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The Original Rocket Dungeon

Sirius SS Cestris build, part 2

10 Dec 2014, 23:50 UTC
Sirius SS Cestris build, part 2
(200 words excerpt, click title or image to see full post)

In the attached photo, you will see today's progress. For the motor mount, I used an Estes screw-on retainer and piece of thick walled motor tube. The thicker walled tube mates snugly with the retainer and it was easy to strip a layer from the inside of the provided centering rings. You can (barely) see the Kevlar leader provided with the kit. All these parts were assembled with 5-minute epoxy.I mentioned in the first post about the need for extra nose weight. Since I am not 100% sure how sturdy the multi-part vacu-formed cone is, I am a tad concerned about having weight in its tip. I also have had issues with small screw eyes coming out of ply rings at ejection. To mitigate these issues, I put the stock 3' long elastic cord in my parts bin and cut a 6' long piece. I'll loop it so that there is plenty of underwear between the chute and both the cone and body.The tube assembly was pretty straightforward. The kit provides a paper template to cut the leading edge of the outboard tubes. Inserting a spent case while cutting tubes really helps. Note there are several small wraps up and ...

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