Parasailing winch boats
The first Parasails were developed by Pierre-Marcel Lemoigne in 1961. Lemoigne is a well known developer of Para Commander-type of parachutes known as "ParaCommander" or PC-canopies. The date of the first towing of a parasail is not known, but one of the first mentions is a flight by Colonel Michel Tournier from France flying behind a tractor in the same year - 1961.
In 1963 Jacques-André Istel from Pioneer Parachute Company bought a licence from Lemoigne to manufacture and sell the invention with a name "parasail". Mc Cullohs most successful invention was called the Winchboat, which he patented in 1976 and made its commercial debut in the 1980s. Today nearly all commercial operators use winchboats equipped with a PTO (power-take-off), which uses the boat's engine to drive a hydraulic winch. The combination of these two designs ushered in the era of widespread commercial parasailing.