04-06-2008, 11:34 PM
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Master Modeler
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Join Date: Dec 2005
Location: Washington State
Posts: 654
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Input Appreciated.
Quote:
CPMcGraw Quote:
Interesting images, James. 19 and 14 FPS are not horrible DVs, but if they could be brought down a bit it would make for a not-quite-such-a-nail-biter at chute time...
Could the altitude performance be sacrificed for a softer DV? Larger diameter shroud, or larger fins (greater margin)?
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I tried both and they did raise the margin only slightly. Maybe what this design needs is more length and some nose wieght, but it just don't look right any longer. Besides after it's built it will most likely be heavier than RocKsim says, as usual, and be better off with some nose wieght and a 2 second delay just like the Sabre Tooth on a C motor  .
Thanks for your input Craig, JP.
James Pierson
NAR# 77907 |