02-26-2009, 11:29 AM
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BARCLONE Rocketry
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Join Date: Mar 2005
Location: Mobile, Alabama
Posts: 5,357
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Andrew,
I think you'll like this revision. It's minor, yet major in terms of performance. This design is just screaming for 13mm power! What I did was change the engine mount a bit to take a standard 13mm casing, then tried some runs with both the A3-4T and the A10-3T. The A10 is the better engine, but both give nearly the same altitude and Dv numbers. The A3 needs the whole launch rod, however...
A10-3T......317'......Dv 15 FPS
A3-4T.......324'......Dv 13 FPS
Don't be afraid to try 13mm power in designs like this one. The final numbers will surprise you.
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