Russell Willis

Hi all,

Planning for next aircraft to scratch build a basic low wing intermediate Sports Trainer. Planning to utilize similar dimensions & wingspan to my Boomerang 40 but without the Dihedral. I'm not looking for a speed demon but some thing in the Tiger 40 vein as a First low winger. I am familiar with various Airfoil design sites but looking for a reasonable well behaved Airfoil. Suggestions welcome.

Regards,

RW

RCFlyerDan

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Kaos has always been one of my favorites.

R8893

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My designs have been scale aircraft but they have flown like a low wing sport model. If you want a semi-symmetrical airfoil, I suggest NACA 23xx, where the axis the percent maximum thickness to chord ratio. I like this airfoil because the high and low points of the upper and lower camber are at the same percentage of the chord, 30% IIRC. This makes it easy to create an "I" beam spar at the thickest part of the wing. 15% thick will be plenty strong.
Chuck

Russell Willis

Thanks Dan,

I'm familiar with the model I'll check it out.

RW.

Russell Willis

Thanks Chuck I'll check it out. Got my Wings today but I'll be on the trainer a while yet getting stick time.

RW