A glider is an aircraft heavier than air that has no engine, but with their large wings can be kept in the air. His buoyancy come solely from the resulting overall aerodynamics. Can glide long distances at high speed with a minimum loss of height in between.At the beginning of the flight are driven by an airplane using a cable, which is expulsed when reach the required height. After the plane landed and the glider is released, taking advantage of areas with hot air for not losing height and continue flying.
The practice is often called gliding. Some gliders, known as motor gliders are used for gliding and soaring as well, but have engines which can, in some cases, be used for take-off or for extending a flight. Gliders have also been used for military purposes and for research.
A glider's competition:
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