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Old 03-18-2006, 07:41 PM
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CPMcGraw CPMcGraw is offline
BARCLONE Rocketry
 
Join Date: Mar 2005
Location: Mobile, Alabama
Posts: 5,357
Exclamation New Plan -- Swizzle Stick

Here's a fun design...

The double ring fins give this model tons of stability for any of the motors listed below, but the drag from them will also rob the model of a good bit of its top-end performance. RocSim says it will fly!

Construction Note: The individual tubes for the ring fins do not touch each other, but are separated by a small gap. You will need to reduce and adjust this gap equally on the rear ring to accomodate the launch lug, which wedges into the gap between two of the tubes. Also, if you plan on flying with the upper-end "F" and "G" motors, you might want to attach the tubes with epoxy...

18" parachute recovery.

D12-3.......410'.....20 FPS.....48" Rod
D21-4.......500'......7 FPS.....36" Rod
D24-4.......500'......6 FPS.....36" Rod
E15-4.......969'.....13 FPS.....48" Rod
E18-4.......927'.....15 FPS.....36" Rod
E28-5.......890'......3 FPS.....36" Rod
F12-5......1010'.....25 FPS.....48" Rod
F21W-4.....1185'.....19 FPS.....36" Rod
F24-4......1050'.....24 FPS.....36" Rod
G55-5......1865'.....15 FPS.....36" Rod

Skill Level 3.

Enjoy!
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