> Found an old reference today stated the following (for a near 90' > junctions). > > The leading edge fillet will have a radius of 15% of the chord. The > trailing edge fillet will have a radius of 30% of the chord. > With almost all airfoils, the leading edge is much more important in > reducing air drag than is the trailing edge. > With fillets the trailing edge fillet is every bit as important as the > leading edge fillet. > The top and bottom fillets will have a radius of 30% of the airfoil > thickness. > > > Paul Smith > Brisbane, AUSTRALIA > pk.sm...@bigpond.net.au > http://kr2spacemodulator.blogspot.com/ > >