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Old 04-03-2010, 03:56 PM
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CPMcGraw CPMcGraw is offline
Join Date: Mar 2005
Location: Mobile, Alabama
Posts: 5,357
Exclamation New Design -- Blackjack

This one looks like a model I will just have to try building. The performance is great, with excellent Dv numbers. What will be the most complex will be the drilling out of five 1/4" holes through a pair of BC-1045 cones...

If only there was a laser drill...

Length: 40.50"
Diameter: 1.04" (ST-10)
Fin Span: 5.85" (Jay's upscale Chuter-II fins)
Weight: 2.12 oz

B6-4......331'......Dv 8 FPS......36" x 1/8" rod
C6-5......817'......Dv 7 FPS......36" x 1/8" rod

The A8-3 is not recommended at all. The B4-4 is acceptable in a pinch, but reaches 10' lower altitude, and has a higher Dv number.

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Craig McGraw

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