Slickwilly
Well-Known Member
- Joined
- Nov 29, 2009
- Messages
- 619
- Reaction score
- 5
Had some 3" mailing tubes laying around and decided to do a upscale altered version of my Ion Challenger kit. I bought a 11 1/4" x 3" LOC nose cone and 29mm motor tube. I cut all the plywood with my trusty scroll saw. The main fins are 3/16" thk birch, ring fins are 3/8" thk birch (doubled 3/16"), centering rings are 3/16" thk birch and the 3 half circle baffle pieces are 1/8" birch. The upper body tube is 16" long, lower tube is 31" long, motor tube is 14" long and the coupler baffle tube is 6" long. The ring tube is a 6" paper tube made from a coffee can. I plan on beefing up the ring tube with a layer of duck tape. I'll be using 8' of 750# kevlar cord attached to the baffle and a 36" nylon chute.