I'm working on a new Magpie design 'Magpie 80' The pic is of my work so-far on the plans. It'll be a racer without a motor and it'll run a sail arm servo and a standard rudder servo only on a 2 channel radio. The rig will be like the 90 and will be interchangeable meaning a bigger ratio of power-weight. I'm keeping it to 181 mm draft for a mud puddles and it will accordingly have a fairly heavy ballast ratio to stand it up. More to come...