The following are some of the companies have built significant gliders, though many are no longer in business. Gliders are un-powered heavier-than-air aircraft. ...
Advanced Soaring Concepts is a US sailplane manufacturer based in Camarillo, California. ... The Deutsche Forschungsanstalt für Segelflug, or DFS (German Research Institute for Sailplane Flight) was formed in 1933 to centralise all gliding activity in Germany. ... Jump to: navigation, search DG Flugzeugbau GmbH is a manufacturer of sailplanes based in Bruchsal near Karlsruhe, Germany. ... Pilatus Aircraft Ltd. ... PZL is an abbreviation name used by three Polish aerospace manufacturers. ... Rolladen Schneider was a manufacturer of rolling doors and shutters run by Willi and Walter Schneider based in Egelsbach near Frankfurt, Germany. ... Schempp-Hirth Flugzeugbau GmbH is a sailplane manufacturer based in Kirchheim, Germany. ... Alexander Schleicher GmbH & Co is a major manufacturer of sailplanes located in Poppenhausen, near Fulda in Germany. ... The Schweizer Aircraft Corporation, located in Horseheads, NY, was incorporated in 1939 by three Schweizer brothers, who built their first glider in 1930. ...
The term "glider" is broadly used to refer to all types of unpowered aircraft - from older low performance gliders that have only a limited ability to gain altitude to modern high performance gliders capable of flying thousands of kilometers in a single day.
A glider was even built secretly by POWs as a potential escape method at Colditz Castle near the end of the war in 1944.
Gliders are equipped with an altimeter, compass and an air-speed indicator, and often with a radio, though in some countries the radio is not compulsory.