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Aviation includes the activities surrounding mechanical flight and the aircraft industry. Aircraft includes fixed-wing and rotary-wing types, morphable wings, wing-less lifting bodies, as well as lighter-than-air aircraft such as hot air balloons and airships.
Aviation began in the 18th century with the development of the hot air balloon, an apparatus capable of atmospheric displacement through buoyancy. Some of the most significant advancements in aviation technology came with the controlled gliding flying of Otto Lilienthal in 1896; then a large step in significance came with the construction of the first powered airplane by the Wright brothers in the early 1900s. Since that time, aviation has been technologically revolutionized by the introduction of the jet which permitted a major form of transport throughout the world. (Full article...)
A hot air balloon consists of a bag called the envelope that is capable of containing heated air. Suspended beneath is the gondola or wicker basket (in some long-distance or high-altitude balloons, a capsule) which carries the passengers and a source of heat. The heated air inside the envelope makes it buoyant since it has a lower density than the relatively cold air outside the envelope. Unlike gas balloons, the envelope does not have to be sealed at the bottom since the air near the bottom of the envelope is at the same pressure as the surrounding air. In today's sport balloons the envelope is generally made from nylon fabric and the mouth of the balloon (closest to the burner flame) is made from fire resistant material such as Nomex.
Recently, balloon envelopes have been made in all kinds of shapes, such as hot dogs, rocket ships, and the shapes of commercial products. Hot air balloons that can be propelled through the air rather than just being pushed along by the wind are known as airships or, more specifically, thermal airships. (Full article...)
...that Chris Phatswe committed suicide by crashing his Air Botswana plane into two other planes belonging to the airline, effectively crippling operations? ...that Frenchman Jean-Marie Le Bris accomplished the world's first powered flight in 1856, with a glider that was pulled behind a running horse? ... that Jimmy Doolittle commanded a 22 plane demonstration celebrating the opening of Henderson, Kentucky's Audubon Memorial Bridge in 1932?
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Elbert Leander "Burt" Rutan (born June 17, 1943 in Estacada, Oregon) is an American aerospace engineer noted for his originality in designing light, strong, unusual-looking, energy-efficient aircraft. He is most famous for his design of the record-breaking Voyager, which was the first plane to fly around the world without stopping or refueling, and the suborbital rocket plane SpaceShipOne, which won the Ansari X-Prize in 2004.
NASA's Space Shuttle, officially called the Space Transportation System (STS), was the spacecraft which was used by the United States government for its human spaceflight missions. At launch, it consisted of a rust-colored external tank (ET), two white, slender Solid Rocket Boosters (SRBs), and the orbiter, a winged spaceplane which was the space shuttle in the narrow sense.
The orbiter carried astronauts and payload such as satellites or space station parts into low Earth orbit, into the Earth's upper atmosphere or thermosphere. Usually, five to seven crew members rode in the orbiter. The payload capacity was 22,700 kg (50,000 lb). When the orbiter's mission was complete, it fired its Orbital Maneuvering System (OMS) thrusters to drop out of orbit and re-enter the lower atmosphere. During the descent and landing, the shuttle orbiter acted as a glider, and made a completely unpowered ("dead stick") landing.