RE: Pfalz DIII resources -- Photos, Drawings, Plans, etc.
Bob, I agree that adjustments to the rigging could be used to set the overall torsion of the wings, but I'm not sure this would produce the featured (up) wingtip look typical of the Pfalz and many other WWI aircraft. For example the alierons on the German 2-seater designes actually appear to have something like a 5 degree torsion built in such that the outboard edge is several inches higher than the inboard edge. No wires could effect this area. I think this torsion would have to be built it.