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S.P.A.D. Aircraft - Coroplast design Discuss the growing area of S.P.A.D.S. (Simple Plastic Airplane Designs). Coroplast type aircraft, pizza box planes, etc..

Alternative Wing Design?

Old 06-26-2003, 12:17 PM
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Default Alternative Wing Design?

I'm thinking of trying to build a variation on the Spazzler wing . My motivation is - no 2 mm Coroplast in Ireland .

I'm planning on trying 2 main changes:

1. Running the flutes along the wing (lengthwise) for added lengthwise strength - then I'll lighten the spar by using single thinkness 4 mm with the flutes vertical (like shear web on a wooden wing) and no yardstick. I won't make a cutout in the centre to accommodate the fuselage because that would take away the strength where it's need most. Instead I'll cut the fuselage to fit the wing. This might work with 2 mm Coroplast also.

2. Cutting out sections behind the spar to lighten the wing then covering with sticky vinyl.

I'm new to SPADs so I'd value any opions, particularly regarding running the flutes lengthwise.

Tony
Old 06-26-2003, 01:07 PM
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Default Alternative Wing Design?

Tony,

so far as I know, and have experienced, you get a much nicer wing with chordwise flutes.

I've built all 4mil wings using both spanwise and chordwise flutes, and I've found that the chordwise gave the better wing.

That's my quarter's worth

~flyer~
Old 06-26-2003, 07:21 PM
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Default Alternative Wing Design?

Yep. spadwise flutes you generaly get a faceted aerofoil, generaly with this you need 2 spars because 1 spar gives to much of a sharp agle and the wing dosent perform, the original SPAzler has coro for a spar and that worked fine

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