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Old Feb 24, 2015, 04:14 PM
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Jon Himself's Avatar
United Kingdom, England, Ashford
Joined Jun 2014
40 Posts
My first wing design...

Hi all, thanks for all the help so far with this, but it's about time I put something into practice and I'd like some help with it if possible.

Sadly my 'nurfluegel' program has totally given up the ghost (on all my computers !?) and I cannot insert 'kinks' into my design to specify foil types at different spans.....can anyone tell me what the heck I've done wrong ? I've used this program for about 2 months without issue and all of the sudden it wont work at all !

Anyways I turned to XFLR5 (learning this too) and I'm reasonably happy with the design which is to be a powered sports wing to research and move on with.

Span = 1500mm
Flying weight = 1.2kg
Centre = MH60 12% (400mm chord)
1/2 span = MH60 10% (2 degree washout)
Tips = NACA 0010 (75mm long with 6 degrees washout)
3 degrees dihedral.

Seems to want to be stable and buoyant at ~ 1.5 degrees nose up at 30mph.
Not sure on it's lifting capability though.

Really miffed nurfluegel doesn't work because I'd really like to see the circulation curve.

Probably make a 1/2 scale model of this 1st from balsa to practice construction, but has anyone got any thoughts on the design for starters ?
Any opinions greatly appreciated
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Old Feb 25, 2015, 11:42 AM
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Ukraine, Crimea, Ordzhonikidze
Joined Jul 2012
56 Posts
What about the vertical stabilizer?
I not sure in numbers: wing loading 0, CL/CD 60, CL 0,038 and 15м/сек More realistic: 34g/dm2; 20; 0,26.
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Last edited by Drinkes; Feb 25, 2015 at 12:00 PM.
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