CPMcGraw
07-03-2010, 08:05 PM
Enjoy!
This has eye-appeal, Slick!
One "gotcha" to bring your attention to. The Dv numbers (deployment velocities) are extremely high. This model is currently in chute-shredder territory. The upper number for LPR designs is about 20 FPS, and the lower the better. 10 FPS is nice, but 5 FPS and below is the desired target range. Soft, gentle pop-outs of the parachute reduce the stress on the recovery hardware, and reduce the chances of a zipper, too.
Try scaling up the fin size, and watch the numbers carefully. Also, try adjusting the delay times of the engines. It's a combination of these items that get the optimum results, but it's well worth it.
Keep posting! After a while, you'll get the hang of it. :D
Nice design - I like the fin patterns!
I also thought this would do well as a two-stager. Played around with it a little and came up with some really good numbers.
Take a look!
D12-0 / D12-5 => 1012 ft / DV 16.50
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