Gliders are unpowered aircraft that rely on aerodynamic forces and thermals to stay aloft. They have long, narrow wings to reduce drag and increase lift. Control surfaces like ailerons and elevators allow pilots to control roll, pitch, and yaw without an engine. Gliders launch through aerotow by a powered plane or by riding thermals and ridges to gain altitude. Landings involve using spoilers to disrupt lift and rolling to a stop on a small wheel under the cockpit.

1. How Gliders Work CUO Tonya Brown Apr 11

18. Hooked-on-rc-planes.com