Sometimes it's about knowing when to stop, so I'll hang the cat from the rafters for now to see whether its foam-and-skewer methodology can be applied to the mono.
I've one such already built out of the same stock sheet of laminated ply, where you can see that to provide the required stiffness I extended keel and outriggers proud of the deck; using the aforementioned technique I believe we can make that simpler again.
I'll retain two cross-bars at the rear, though I may attach a rudder to the nearest of the two here to see whether that might be enough to offset the torque of a single motor (which would bank the craft in the opposite direction).
Bear in mind motor, speed controller and battery constitute some 90% of the costs: replacing two with just one of each would practically halve the overall cost.
It is therefore back to Wickes to buy another sheet before we start building... and don't worry because I'll hold your hand throughout so there's no need for tears.
