Any aircraft that is heavier than air, can sustain flight due to its design, yet does not use an engine can be classified as a glider. There are three major categories of glider: sailplanes, paragliders and hang gliders. More »

Sugar gliders are native to Australia and New Guinea. They live in forested areas, and they are named for their ability to leap and glide from tree to tree. Their gliding ability is derived from a flap of skin that conne... More »

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Gliders utilize a combination of gravity and air currents to stay in the air. Lift, drag and thrust are also important to the gilder's ability to fly smoothly for hours after a motorized plane has towed and released them... More »

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Since there are no fixed airways, air traffic controllers determine airplane flight routes by using charts that separate aircraft by five miles laterally and 1,000 to 2,000 feet vertically. Control centers publish and up... More »

Airplanes have changed in their size, engine systems, control systems, construction, and range and payload capabilities since the first powered aircraft took to the air in the early 20th century. Modern passenger airplan... More »

Gliders utilize a combination of gravity and air currents to stay in the air. Lift, drag and thrust are also important to the gilder's ability to fly smoothly for hours after a motorized plane has towed and released them... More »

www.reference.com Vehicles Airplanes & Helicopters

The problem with the MD-80 aircraft that provoked massive flight cancellations by American Airlines in March and April of 1980 concerned the wiring in the hydraulic systems. Because of a $10.2 million fine levied earlier... More »

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