Thought you might like to see my latest idea. Real easy to build, first I just sketched a shark side view from a sketch to a length of 39". Next I found a top view drawing and sketched that to match the length of the side view. I kept the fins as far back as possible without ruining the looks to have better control. For controls I just have elevons on the fins and the tail as a rudder. The shark balanced at about one third the length. I am doing some surfboard ideas to go along with the shark and have a 6 foot surfboard and 8 foot shark started. If the big ones work we may make the trip to Flite Fest..