First we lofted a very simple flatiron skiff just to introduce apprentices to the concepts of fairing lines in three views: profile, plan, and sections. Lofting is an essential first step in boatbuilding, a process formerly done by carving half models. It is now threatened by computer-designed boats where lines are drawn full-size by a plotter.
I believe that learning lofting is still a skill worth having. So many boat designs are available from books and museums and anyone who can loft a boat has access to an enormous range of designs.