glider

Home > ... > Science and Technology > Technology > Aviation: General > ...

glider

The Columbia Encyclopedia, Sixth Edition | 2008 | The Columbia Encyclopedia, Sixth Edition. Copyright 2008 Columbia University Press. (Hide copyright information) Copyright

glider type of aircraft resembling an airplane but having at most a small auxiliary propulsion plant and usually no means of propulsion at all. The typical modern glider has very slender wings and a streamlined body. The unpowered variety is launched by an elastic shock cord, a rope, or a cable, attached to the front of the glider and pulled by a launching crew, a winch, a tow car, or a tow plane. Gliders can be towed behind airplanes over great distances. The powered variety can take off and climb on its own. The glider uses gravity and updrafts of air to keep it flying; slope soaring relies on wind rising off dunes or hillsides, while thermal soaring exploits convection currents in the air. In soaring the glider is repeatedly maneuvered through updrafts to reach altitudes as high as 46,000 ft (14,000 m). It can then glide down through air that is not rising. In a powered glider the engine can be turned on to keep the glider aloft when there are no updrafts. A sailplane, a glider which is built especially for soaring and sustained flight, can travel as much as 500 mi (800 km) in this manner. The usual flight controls in a glider consist of a pedal to operate the rudders and a control stick to operate the elevators and ailerons. Otto and Gustav Lilienthal of Germany made the first successful piloted glider flight in 1891. The Lilienthals demonstrated the superiority of curved over flat surfaces in flight and encouraged others to make glider experiments, at least until Otto's death in a glider crash in 1896. At the beginning of the 20th cent. the Wright brothers constructed and flew many gliders. They introduced land skids, wing warping, and other improvements that characterize present-day gliders. In World War II troop-transport gliders were used for aerial invasions. The gliders were launched and towed by cargo aircraft to the invasion area, where they were released. Early gliders were launched from hills or by running forward; the machine maintained stability while in flight by the pilot's shifting body weight. These techniques have been resurrected in modern hang gliding, a development based on NASA experiments with flexible-wing gliders in the 1950s. The hang glider, with nylon or Kevlar stretched over an aluminum frame, can reach an altitude of 20,000 ft (6,100 m) and stay aloft up to 15 hours; in 1979 five hang glider pilots flew their machines (fitted with auxiliary motors) across the United States. A paraglider is an parachutelike airfoil made of nylon and Mylar from which the pilot is suspended by a series of ropes. Paraglider pilots must "kite" —raise the airfoil into the air by running and using the wind—before launching themselves from a cliff or the like.

Bibliography: See T. L. Knauff, Glider Basics from First Flight to Solo (1982); D. Piggott, Gliding (5th ed. 1987).

Hide all research tools
Print this article Print all entries for this topic Cite this article Link to this article
Link to this article

CloseClose

Create a link to this page

Copy and paste this link tag into your Web page or blog:

<a href="http://www.encyclopedia.com/topic/.aspx#1E1-glider" title="Facts and information about glider">glider</a>

Add this article to Del.icio.usBookmark this article on DiigoShare this article on FacebookSubmit this article to RedditGive this article a thumbs-up on StumbleUpon
Show all research tools

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"glider." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. 15 Dec. 2009 <http://www.encyclopedia.com>.

"glider." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. (December 15, 2009). http://www.encyclopedia.com/doc/1E1-glider.html

"glider." The Columbia Encyclopedia, Sixth Edition. 2008. Retrieved December 15, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-glider.html

Learn more about citation styles

glider

The Oxford Essential Dictionary of the U.S. Military | 2001 | © The Oxford Essential Dictionary of the U.S. Military 2001, originally published by Oxford University Press 2001. (Hide copyright information) Copyright

glider n.
1. a light aircraft that is designed to fly for long periods without using an engine.

2. the pilot of such an aircraft.

Hide all research tools
Print this article Print all entries for this topic Cite this article Link to this article
Link to this article

CloseClose

Create a link to this page

Copy and paste this link tag into your Web page or blog:

<a href="http://www.encyclopedia.com/topic/.aspx#1O63-glider" title="Facts and information about glider">glider</a>

Add this article to Del.icio.usBookmark this article on DiigoShare this article on FacebookSubmit this article to RedditGive this article a thumbs-up on StumbleUpon
Show all research tools

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"glider." The Oxford Essential Dictionary of the U.S. Military. 2001. Encyclopedia.com. 15 Dec. 2009 <http://www.encyclopedia.com>.

"glider." The Oxford Essential Dictionary of the U.S. Military. 2001. Encyclopedia.com. (December 15, 2009). http://www.encyclopedia.com/doc/1O63-glider.html

"glider." The Oxford Essential Dictionary of the U.S. Military. 2001. Retrieved December 15, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O63-glider.html

Learn more about citation styles

gliders

The Oxford Companion to World War II | 2001 | | © The Oxford Companion to World War II 2001, originally published by Oxford University Press 2001. (Hide copyright information) Copyright

gliders, engineless aircraft used to carry airborne troops, tanks, artillery, and supplies. They were usually towed singly, but sometimes in pairs, behind specially converted bombers. Made of wood, or constructed from a tubular steel frame covered with fabric, they were towed to their targets and then released to glide down to a predetermined landing area.

The USSR pioneered gliders for military purposes, and glider units were formed there during the mid-1930s, but during the German–Soviet war the Soviets used them only to supply their partisans. Germany was the first to employ them to transport troops, and was the only Axis country to do so, though Japan did develop a glider assault force. To acquire suitable military personnel, gliding was fostered by the Nazis as a sport between the wars, and the DFS230 ‘attack glider’ was developed. It was this type which, at the start of the German offensive of 10 May 1940 (see FALL GELB), was used to capture the Belgian Eben Emael fortress and the three vital bridges across the River Meuse. The Germans also used gliders to seize the Corinth Canal bridge in Greece during the Balkan campaign and then for the airborne invasion of Crete. The heavy losses incurred during this last operation turned Hitler against large-scale airborne assaults, but the Germans continued to use gliders in smaller operations. They were used to deliver supplies on the Eastern Front; Skorzeny employed them in his daring operation to liberate Mussolini; and they were also used to attack French resistance fighters in the Vercors. The Germans built the largest glider of the war, the 24-ton Messerschmitt 323. Called the Gigant (Giant) it could carry 200 fully equipped men, but it needed three aircraft, or two welded together, to tow it and though 200 were built they never proved satisfactory.

The Allies developed several types, notably the British 30-man Horsa, the larger Hamilcar, which could carry a light tank, and the American Waco. The British first used gliders, against Vemork, in November 1942. But their first large-scale use by the Allies took place at the start of the Sicilian campaign in July 1943 when 69 gliders out of the 137 used landed in the sea. More successful was their use by the Air Commando which, in March 1944, landed some of the Chindits by glider behind Japanese lines in Burma. This led to their being employed in large numbers to place Allied airborne troops on the flanks of the Normandy landings in June 1944 (see OVERLORD). They were also used successfully during the French Riviera landings that August; during operation MARKET-GARDEN in September 1944 where more than 2,500 gliders delivered British, Polish, and US units to their targets at Arnhem and elsewhere; and when British and US units were dropped beyond the Rhine in March 1945 during the battle for Germany.

Attempts by the Americans to develop an amphibious glider for the US Marine Corps in the Pacific war were curtailed, and the only use made of American gliders used in that theatre was when seven landed supplies and jeeps in northern Luzon (see Philippines campaigns) in June 1945. They were also similarly employed in the last phase of the Burma campaign. See also air power.

Bibliography

Mrazek, J. , The Glider war (New York, 1975).

Hide all research tools
Print this article Print all entries for this topic Cite this article Link to this article
Link to this article

CloseClose

Create a link to this page

Copy and paste this link tag into your Web page or blog:

<a href="http://www.encyclopedia.com/topic/.aspx#1O129-gliders" title="Facts and information about glider">glider</a>

Add this article to Del.icio.usBookmark this article on DiigoShare this article on FacebookSubmit this article to RedditGive this article a thumbs-up on StumbleUpon
Show all research tools

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

I. C. B. DEAR and M. R. D. FOOT. "gliders." The Oxford Companion to World War II. Oxford University Press. 2001. Encyclopedia.com. 15 Dec. 2009 <http://www.encyclopedia.com>.

I. C. B. DEAR and M. R. D. FOOT. "gliders." The Oxford Companion to World War II. Oxford University Press. 2001. Encyclopedia.com. (December 15, 2009). http://www.encyclopedia.com/doc/1O129-gliders.html

I. C. B. DEAR and M. R. D. FOOT. "gliders." The Oxford Companion to World War II. Oxford University Press. 2001. Retrieved December 15, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O129-gliders.html

Learn more about citation styles

Free newspaper and magazine articles

Free Article Feds Call for Alerts on All Air Gliders
News Wire article from: AP Online; 4/2/2008
Free Article Silent wings of history: Retired major remembers an often-forgotten aerial program.(American Glider Program)
Magazine article from: Airman; 4/1/2003
Free Article Gliders will Aid Naval Research.
Magazine article from: National Defense; 6/1/2009

Facts and information from other sites

Related articles from newspapers, magazines, and more

Gliders not just for nursery anymore.(Gliders rockers a product from Dutailier)
Magazine article from: Furniture-Today; 7/9/2007; ; 700+ words ; ...continue to propel gliders beyond the nursery...and new covers. Glider resources believe...conventional wood gliders to more updated looks...The company's new glider, with lock, swivel...Another major glider source, MAC Motion, is slimming down its gliders to appeal to more...
Gliders skate toward higher style.(Industry overview)
Magazine article from: Furniture-Today; 6/30/2008; ; 700+ words ; ...been updated by adding glider and swivel glider bases, said Eric Vollmer...demand (for upholstered gliders) has pushed us to broaden...Historically, our glider customer has been 50...said. Barcalounger's gliders retail from $799 for...
Glider BFR?(UNICOM)(Letter to the editor)
Magazine article from: Aviation Safety; 8/1/2006; ; 700+ words ; ...not needed to fly gliders. The FAA seems to...minimum age to solo a glider is two years younger...concerning motor gliders, strictly from an...certificate with a glider rating to legally...legally fly a motor glider is a self-launch...qualified in motor gliders. While AC 61-94...
Underwater gliders cruise to advanced exploration
Newspaper article from: Charleston Gazette; 11/24/2003; ; 700+ words ; ...an engineer and glider expert at the Scripps...in San Diego. The gliders are as efficient...Princeton University glider researcher. During...plucked four of the gliders from the water after...fast as today's gliders, which fly at a...Other varieties of glider, now being tested...
Hampshire glider club soars peacefully across local skies
Newspaper article from: Courier News (Elgin, IL); 8/9/2006; ; 700+ words ; ...member of Sky Soaring Glider Club, 19N993 U.S...Hampshire. In fact, gliders are called sailplanes. A glider has the same controls...Minnesota open to all gliders. DeRosa will fly in...category. To fly in a glider is an unforgettable...
Gliders take flight to new depths
Newspaper article from: Daily Breeze; 11/24/2003; ; 700+ words ; ...an engineer and glider expert at the Scripps...in San Diego. The gliders are as efficient...apply to airborne gliders, except the underwater...important stage in glider development came...Princeton University glider researcher. During...plucked four of the gliders from the water ...
Underwater gliders take flight to new depths
News Wire article from: AP Worldstream; 11/25/2003; ; 700+ words ; ...an engineer and glider expert at the Scripps...in San Diego. The gliders are as efficient...apply to airborne gliders, except the underwater...important stage in glider development came...Princeton University glider researcher. During...plucked four of the gliders from the water ...
Gliders Tracking Whale Calls, Ocean Waves
News Wire article from: AP Online; 3/4/2006; ; 700+ words ; ...University, an underwater glider used by ocean scientists...the use of underwater gliders. They are unmanned research...a single, reusable glider costs about $25,000...labs had even one of the gliders. Today, as many as...Carolina coastline used a glider called Pelagia, from...
GLIDERS UNDER THE SEA...
Magazine article from: Sea Power; 2/1/2006; ; 700+ words ; ...supporting research on glider concepts for both...endurance undersea gliders could be used to...deploys and recovers a glider. The gliders all work basically...electrical power, the glider can run for weeks...Cross said. The gliders provide a capability...
Glider Kits Retain Appeal Among Cost-Conscious
Magazine article from: Transport Topics; 5/19/2008; ; 700+ words ; ...stopped building gliders several years ago...to say why. But glider kits still have their...company trucks with glider kits from Kenworth...industry away from gliders. "The EPA really...were concerned that gliders kits could be a means...determine whether a glider is exempt. First...
Click to see an enlarged picture
glider. Wikimedia Commons (Public Domain)

For students and teachers!

Encyclopedia.com provides students and teachers facts, information, and biographies from verified, citable sources, including:

Encyclopedia.com provides students and teachers facts, information, and biographies from verified, citable sources, including:

Current glider News: