Flight Dynamics Flightsail
Flight Dynamics Inc, of Raleigh, NC, were promoting in 1963 The Flightsail. An adaptation to sport of the flexible wing developed for the National Aeronautics and Space Administraion. The wing is a polyethylene covering on an airframe of commercial aluminium tubing and angle stock.
Capable of taking off from land or water, Flightsail is controlled in flight by an aircraft-type control stick that regulates the tilt of the wing.
Easily towed aloft by a 40 – 50 hp outboard, flying is best with a breeze of about 5 mph, lift-off being between 25-50 mph ground speed.
In 1963 it was claimed the Flightsail could be built at a total cost of US$250, including wheels and floats.