I need to design a balsa wood glider for a competition, and I would like any input anyone has. The contest is based on the longest flight time. I am restricted to using balsa wood, modeling clay, glue, and two 2 square inch stickers. The plane will be launched by a rubber band catapult and there are no restrictions on size nor weight. I mentioned the stickers because I thought I could try a folding wing design similar to Guillow's http://www.guillow.com/GuillowDetail...=12&FamilyId=2. Any advice on wing shape, wing placement, canard vs. horizontal stabilizer vs. T-tail or any thing at all is greatly appreciated.