These laterals are a moveable feast, but we've got to start somewhere and so I've gone for six feet. I've built such models over many years and experience suggests that an overall length of between 2.50 and 3.00 times the length of the deck looks about right... so this is pushing the upper end of the scale.
Here I've used strip-wood of around an inch and a half by an eighth (40x4mm) and cut them down to match the length of the uPVC hydroski that I've used previously. Setting the boat on a line feature to centre the prow, sketch out the template either directly onto a length of timber or else a paper template.
