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Old 07-18-2008, 02:11 PM
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CPMcGraw CPMcGraw is offline
BARCLONE Rocketry
 
Join Date: Mar 2005
Location: Mobile, Alabama
Posts: 5,357
Exclamation New Plan -- Rapier

Staying in the ST-8 "Schoolyard Sounders" series for a while longer...

This is a simple, high-performance design for 13mm A3-4 motors. It provides great altitude (400') with very low Dv numbers (less than 5 FPS) while still looking sharp and stylish.

Length: 17.453"
Diameter: 0.908" (ST-8)
Fin Span: 3.88"
Weight: 0.9 oz

A3-4T......401'......Dv 5 FPS (highest of 10 sims).......36" x 1/8" rod
A3-4T......402'......Dv 0.6 FPS (lowest of 10 sims)......36" x 1/8" rod

Enjoy!
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