05-11-2006, 01:04 PM
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BARCLONE Rocketry
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Join Date: Mar 2005
Location: Mobile, Alabama
Posts: 5,357
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New Plan - Goony Cobra
Another from the "Ain't This Already Been Done?" category...
Presenting... The Goony Cobra. Taking the clustered 13mm idea to another extreme, I figured the Cobra deserved an appropriate send-up. I got a pleasant surprise when I ran the simulations, too.
Length: 12.75"
Weight: 1.25 oz
(3) 1/4A3-3T......141'......Dv 9 FPS......36" rod 1/8" dia
(1) A10-3T........239'......Dv 3 FPS......36" rod 1/8" dia
(3) 1/2A3-4T......346'......Dv 2 FPS......36" rod 1/8" dia
Notice the single A10-3T entry. Obviously this would require a different motor mount to function correctly, but you can still get an idea of the power that A10 has. Not a motor to be underestimated...
Do not use either the A3-4T or the A10-3T in a cluster for this model. The Dv range is extremely high (over 35 FPS) for both clusters.
Enjoy!
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