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Old 06-28-2016 | 09:02 AM
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Anthony-RCU
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From: Ossining, NY
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Originally Posted by kenh3497
I've been playing with the Black Magic 90 a bit on size. If I scale the fuse back to 80% of the 2M I get a 62 3/8" fuse tip of spinner to tip of tail. The wing at 82% gives me a 61 1/2 inch span and about 680 SQ. IN. if I include the fuse which I think is the correct way to do it. Otherwise each panel is 312 SQ. IN. The fuse is roughly 60 SQ. IN. The depth of the fuse is 10 3/4" at it's deepest. The YS 91 will fit within the cowl except for about 1/16 + or - a 1/32 or so of the valve cover.

This looks more workable to me and overall weight should not be as big an issue to hit on target. Or I could go as planned and put my YS 120 in the nose of my present version That is still a bit larger than I like though for transportation issues.

Ken

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One concern is wing area. A general target for pattern planes is 100 sq"/pound or a little less. I would think your target would be in the 800 sq" range