Most gliders, often called sailplanes, are unpowered aircraft designed to soar using nothing but natural thermal updrafts. They do it using some really clever physics (more on that later). That ...

The aircraft fall into either the 18-m class for sailplanes with wingspans of 18-m or less, the 15-m class, the Standard class which includes 15-m gliders that do not have flaps that change the ...

The original aircraft used a Lycoming HO-360 engine, but subsequent models used a variety of engines including 300 hp Lycoming 540s. A total of more than 400 were built.

Larry Page's mysterious startup, Zee Aero, is expanding its fleet of unusual aircraft as it races to create flying cars that could revolutionize transportation. Zee Aero registered two new ...