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New Design -- Opus Magnum
A BT-55 performance design for 24mm engines. I was trying to keep it with three fins, which looks better, but it took the fourth fin to get the Dv number down below 10 FPS.
Length: 25.35" Diameter: 1.325" (BT-55) Fin Span: 8.08" Weight: 2.01 oz C11-5.......646'......Dv 3 FPS......30" of guide length D15-6......1324'......Dv 4 FPS......15" of guide length E12-6......1742'......Dv 8 FPS......29" of guide length E9-6.......1783'......Dv 9 FPS......35" of guide length Share & Enjoy!
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Craig McGraw BARCLONE Rocketry -- http://barclone.rocketshoppe.com BARCLONE Blogsite -- http://barclone.wordpress.com BARCLONE Forum -- BARCLONE Forum BARs helping BARs SAM 0044 AMA 352635 |
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