AmalfI - Mantua static wooden kit conversion
After obtaining the kit I did some basic calculations on buoyancy (i.e. I weighed the boat and all the extra kit plus calculated simple volume of hull below waterline) to see if it would float with all the extra gear - although not a lot of freeboard it looked possible -especially if I increased the displacement a little.
The plan was studied next to check on the practical side of conversion and getting everything to fit, while still keep the centre of gravity low and properly positioned along the keel - again it seemed to work.
The keel was cut to accommodate the prop. tube and a small strip was added to the keel with skeg to take the rudder bottom bearing. Reinforcement was added to the sides of the keel where it was cut for the prop. shaft and rudder tube and the frames adjusted to fit.
The rudder assembly was made and fitted in front of the transom - allowing for servo pushrods to operate it without interference of the frames, holes in the transom or the deck.
All the frames had to but cut with lightening holes and also to provide much needed access/space for the motor, batteries, servo, ESC, switch and receiver. Additional strips were added to the rear frame bottom edges to (marginally) increase the displacement when the skin was added by making them deeper below the waterline.