Applied to the keel, the frames are captured only by the nails: that is, not locked, they can rotate or fall off, and can not perform any structural function. They will be built around a series of structures that will end up stuck together and the keel so that no piece should support efforts alone. In the meantime, however, you must lock them in place, giving the boat the "form" provided by the building plan.
With accurate measurements, the water lines are passed from garbi to order, and these are stopped in the longitudinal strips with the stringent, and then nailed.
skeleton, symmetric and rigid, it must be stopped in position flush with the slope of the cave, with the vertical axis to lead, propped up and locked. In that position you can work to the remaining structures, and the shell.
