James R. Drake (January 8, 1929 – June 19, 2012) was an American aeronautical engineer best known as the inventor of windsurfing. In 1967, Drake designed, built and successfully tested the first modern windsurfer, introducing the free-sail system, which allows the rider’s body to control both sail power and direction without a rudder. In 1968, he co-patented his design and co-founded the sport's first company, Windsurfing International, contributing to the global development of the sport.

Before creating the windsurfer, Drake worked as a principal engineer on advanced aerospace projects, including the X-15 rocket plane, the first operational space plane and the fastest crewed aircraft ever flown. His application of aerospace engineering principles to sailcraft design was central to his inventing windsurfing.

Drake earned a bachelor’s degree in mechanical engineering, with an option in aeronautics, from Stanford University in 1951. He grew up in Southern California, where he enjoyed sailing, surfing, and skiing, activities that later influenced his recreational engineering work.

Following graduation, Drake began his professional career at North American Aviation in Los Angeles. He worked in the advanced design group as a principal engineer on experimental and classified aerospace programs. Among the projects he contributed to were the X-15 rocket plane, which established altitude and speed records for crewed flight, and the XB-70 Valkyrie high-altitude bomber.

Drake later worked for Rockwell International and the RAND Corporation. He was also a co-founder of R&D Associates (RDA), a technical research and analysis firm. During the Cold War, his career included periods of work associated with the Pentagon, contributing to studies and development related to intercontinental ballistic missile systems and cruise missile technology. Drake retired from aerospace engineering in 1998 after a career spanning nearly five decades.

Drake began developing the concept of a sail-powered surfboard in the early 1960s, initially discussing the idea with fellow engineer and sailor Fred Payne. His goal was to create a portable sailing craft that could be controlled directly by the rider without the complexity of traditional sailboats.

In 1966, Drake shared the concept with businessman Hoyle Schweitzer. Drake subsequently completed the engineering design, introducing the free-sail system using a universal joint, wishbone boom, daggerboard, and triangular sail. He constructed the first prototype largely by hand in his Santa Monica garage.

On May 21, 1967, Drake conducted the first successful sailing tests in Marina del Rey, California. Further refinements followed, including adding an uphaul line and conducting open-water testing off the coast of Santa Monica. The design proved viable and controllable, forming the basis of modern windsurfing equipment.