This is an example of what I was talking about. Here the basic wing section was given a 1 degree angle of attack at the root, this section was rotated 1 degree down for washout at the tip and positioned (up) for a 1 degree dihedral (from dead front view). All the factors are incorporated right from the very start.Of course these values are seat of the pants guesses on what will work best. The 2414 is a forgiving soft-stall airfoil to begin with so I can’t go too far wrong.(By the way, the section at the center-line is a 2414 with the rear half stretched to meet my plan view design).Now comes the hard part, trying to design these theoretical sections in wood, working with standard size stock for LE and TE, etc. Building the airfoil accurately is very hard also, especially with open frame construction.