Radab Windex
The Radab Windex is a family of Swedish high-wing, single-seat aerobatic gliders and motor gliders that was designed by Sven Olof Ridder and produced initially by Radab and later by WindexAir AB as a kit for amateur construction. Design and development The initial design was the unpowered model 1100. This was followed by the present production 1200C motorglider. The project started off in 1980 as a hobby design between Sven-Olof Ridder and Harald Undén, who later founded Radab to produce the design. By 1983 they had developed the custom airfoil section and tested it in a wind tunnel. The first unpowered 1100 model flew in 1985, but the following year, as they geared up for kit production the factory burnt down, including all the fibreglass molds that they had built. Only two 1200 C aircraft kits had been produced before the molds were destroyed. One of these was completed in time to be flown at the 1987 Paris Airshow. By 1990 the molds had been replaced and the first new 1200 C was completed. The first amateur-built Windex was completed from a kit in 1996. By 1999 WindexAir AB had assumed production from Radab. The 1200 C is built from