http://www.rcuniverse.com/forum/rc-gliders-sailplanes-slope-soaring-112/11392456-nodds-plank.html

Last plane I made was a wooden sail plane years ago. Didnt fly too well in fairness. This is interesting reading. Mine is going to be more V wing though I think.....Maximise the frame to surface area ratio weight wise too. Used to have an old RC flying wing..... really should'nt have binned the broken foam!!!