Salto
Feb 08, 2003, 04:34 PM
Hello there,
I'm planning to build a 280 powered semi scale park flyer based on plans for a Skyfox (from airbornemagazine.com.au) scaled to about 1m (39 inch) span. I have yet to do the power and wing loading calculations to determine the exact size and target weight, but right now I am looking at the general layout and airfoil sections etc.
The full size Skyfox and the Airborne model (1.9m span) both have ailerons hanging behind and below the wing trailing edge, would these be referred to as slotted ailerons? The wing section is 12% thickness, and mildly undercambered. This combination would appear to have the right characteristics for a slow flying park flyer - high lift at low speeds, a low stall speed, and good aileron response down to and through the stall.
My question is; will the underhanging ailerons work at the low Reynolds Numbers of a slow park flyer? On my 1m span model they would only be 19mm long.
Any other comments or advice on this design would be most welcome.
Graham.
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I'm planning to build a 280 powered semi scale park flyer based on plans for a Skyfox (from airbornemagazine.com.au) scaled to about 1m (39 inch) span. I have yet to do the power and wing loading calculations to determine the exact size and target weight, but right now I am looking at the general layout and airfoil sections etc.
The full size Skyfox and the Airborne model (1.9m span) both have ailerons hanging behind and below the wing trailing edge, would these be referred to as slotted ailerons? The wing section is 12% thickness, and mildly undercambered. This combination would appear to have the right characteristics for a slow flying park flyer - high lift at low speeds, a low stall speed, and good aileron response down to and through the stall.
My question is; will the underhanging ailerons work at the low Reynolds Numbers of a slow park flyer? On my 1m span model they would only be 19mm long.
Any other comments or advice on this design would be most welcome.
Graham.
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