Boardsailing
Windsurfing is a surface water sport that combines elements of surfing and sailing. It consists of a board usually 2.5 to 3 meters long, with displacements typically between 60 and 250 litres, powered by wind on a sail. The rig is connected to the board by a free-rotating universal joint and consists of a mast, boom and sail. The sail area generally ranges from 2.5 m2 to 12 m2 depending on the conditions, the skill of the sailor, the type of windsurfing being undertaken and the weight of the person windsurfing.
Some credit S. Newman Darby with the origination of windsurfing by 1964 on the Susquehanna River, Pennsylvania, USA when he invented the "sailboard", which, incidentally, he did not patent. In 1964, Darby began selling his sailboards. A promotional article by Darby was published in the August 1965 edition of Popular Science magazine.
While Darby's "sailboard" incorporated a pivoting rig, it was "square rigged" and suffered all the associated limitations. The sailboard was operated with the sailor's back to the lee side of a kite-shaped sail. Darby's article boasted that "...you can learn to master a type of manoeuvering that's been dead since the age of the picturesque square riggers"
Windsurfing can be said to straddle both the laid-back culture of surf sports and the more rules-based environment of sailing. Although it might be considered a minimalistic version of a sailboat, windsurfing offers experiences that are outside the scope of other sailing craft designs. Windsurfers can perform jumps, inverted loops, spinning maneuvers, and other "freestyle" moves that cannot be matched by any sailboat. Windsurfers were the first to ride the world's largest waves, such as Jaws on the island of Maui, and, with very few exceptions, it was not until the advent of tow-in surfing that waves of that size became accessible to surfers on more traditional surfboards. Extreme waves aside, many expert windsurfers will ride the same waves as surfers do (wind permitting).
...
Wikipedia