It all started when…
"It is hard to grasp the significance of Lapworth's Cal-40 design without having it surrounded by the rest of the 1963 racing fleet. In 1963 racing boats were all over the map in terms of design, and many of them were not good boats. The Cal-40 has endured as an efficient and handsome design. This modest appearing design changed the direction of racing boat design forever."
~ Robert H. Perry