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43-587: It was first mentioned in the 13th century as Deijle, and means "parcel of ground". Deelen is best known for the Deelen Air Base , a military airfield close to the village. The airport was built in 1913 as a subsidiary of Soesterberg Air Base . During the German occupation, it was enlarged into a big airfield measuring 40 square kilometres (15 sq mi). There is a museum on the airbase dedicated to its history. This Gelderland location article

86-594: A kite as they worked towards achieving powered flight. They returned to glider testing in 1911 by removing the motor from one of their later designs. In the inter-war years, recreational gliding flourished in Germany under the auspices of Rhön-Rossitten . In the United States, the Schweizer brothers of Elmira, New York, manufactured sport sailplanes to meet the new demand. Sailplanes continued to evolve in

129-435: A car or boat rather than being capable of free flight. These are known as rotor kites . However rotary-winged gliders, 'gyrogliders', were investigated that could descend like an autogyro , using the lift from rotors to reduce the vertical speed. These were evaluated as a method of dropping people or equipment from other aircraft. A paper plane, paper aeroplane (UK), paper airplane (US), paper glider, paper dart or dart

172-584: A depot for V-1 flying bombs . After the war, up until 1950, the Dutch military used Deelen as a storage facility. In 1950, the decision was made to restore Deelen back to an operational air base, and from 1957 to 1963 was the base for the Royal Netherlands Air Force Republic RF-84F Thunderflash photo reconnaissance aircraft. Between 1964 and 1995 the field was used by various lighter aircraft, such as

215-516: A glider. The Space Shuttle and its Soviet equivalent, the Buran shuttle , were by far the fastest ever aircraft. Recent examples of rocket glider include the privately funded SpaceShipOne which is intended for sub-orbital flight and the XCOR EZ-Rocket which is being used to test engines. Most unpowered rotary-wing aircraft are kites rather than gliders, i.e. they are usually towed behind

258-409: A motor mounted on a wheeled frame rather than the pilot's back. There can be confusion between gliders, hang gliders, and paragliders . Paragliders and hang gliders are both foot-launched glider aircraft and in both cases the pilot is suspended ("hangs") below the lift surface. "Hang glider" is the term for those where the airframe contains rigid structures, whereas the primary structure of paragliders

301-559: A patent US Patent 3131894 on the Parafoil which had sectioned cells in an aerofoil shape; an open leading edge and a closed trailing edge, inflated by passage through the air – the ram-air design. The 'Sail Wing' was developed further for recovery of NASA space capsules by David Barish. Testing was done by using ridge lift . After tests on Hunter Mountain , New York in September 1965, he went on to promote " slope soaring " as

344-517: A potential escape method at Oflag IV-C near the end of the war in 1944. Foot-launched aircraft had been flown by Lilienthal and at the meetings at Wasserkuppe in the 1920s. However the innovation that led to modern hang gliders was in 1951 when Francis Rogallo and Gertrude Rogallo applied for a patent for a fully flexible wing with a stiffening structure. The American space agency NASA began testing in various flexible and semi-rigid configurations of this Rogallo wing in 1957 in order to use it as

387-401: A precipitous running or jumping, as opposed to a smooth motion. Scholars are uncertain as to its original derivation, with possible connections to "slide", and "light" having been advanced. Early pre-modern accounts of flight are in most cases difficult to verify and it is unclear whether each craft was a glider, kite or parachute and to what degree they were truly controllable. Often the event

430-544: A recovery system for the Gemini space capsules . Charles Richards and Paul Bikle developed the concept producing a wing that was simple to build which was capable of slow flight and as gentle landing. Between 1960 and 1962 Barry Hill Palmer used this concept to make foot-launched hang gliders, followed in 1963 by Mike Burns who built a kite-hang glider called Skiplane . In 1963, John W. Dickenson began commercial production. January 10, 1963 American Domina Jalbert filed

473-869: A set of (feathery) wings, and both blamed their crash on the lack of a tail. Hezârfen Ahmed Çelebi is alleged to have flown a glider with eagle-like wings over the Bosphorus strait from the Galata Tower to Üsküdar district in Istanbul around 1630–1632. The first heavier-than-air (i.e. non-balloon) man-carrying aircraft that were based on published scientific principles were Sir George Cayley 's series of gliders which achieved brief wing-borne hops from around 1849. Thereafter gliders were built by pioneers such as Jean Marie Le Bris , John J. Montgomery , Otto Lilienthal , Percy Pilcher , Octave Chanute and Augustus Moore Herring to develop aviation . Lilienthal

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516-412: A summer activity for ski resorts (apparently without great success). NASA originated the term "paraglider" in the early 1960s, and ‘paragliding’ was first used in the early 1970s to describe foot-launching of gliding parachutes. Although their use is mainly recreational, unmanned paragliders have also been built for military applications e.g. Atair Insect . The main application today of glider aircraft

559-572: Is a stub . You can help Misplaced Pages by expanding it . Deelen Air Base Deelen Air Base (Dutch: Luchtmachtbasis Deelen or Vliegbasis Deelen ) is a military air base in the Netherlands in the province of Gelderland . Though once an active air base, it is now mostly used as a helicopter training site. Being one of the oldest airports in the Netherlands, many buildings on the airfield are now listed as monuments . Deelen Air Base

602-709: Is a toy aircraft (usually a glider) made out of paper or paperboard; the practice of constructing paper planes is sometimes referred to as aerogami (Japanese: kamihikōki), after origami, the Japanese art of paper folding. Model glider aircraft are flying or non-flying models of existing or imaginary gliders, often scaled-down versions of full size planes, using lightweight materials such as polystyrene , balsa wood , foam and fibreglass . Designs range from simple glider aircraft, to accurate scale models , some of which can be very large. Larger outdoor models are usually radio-controlled gliders that are piloted remotely from

645-608: Is done by individual designers and home builders. Unlike a sailplane, a hang glider is capable of being carried, foot launched and landed solely by the use of the pilot's legs. In a hang glider the shape of the wing is determined by a structure, and it is this that distinguishes them from the other main type of foot-launched aircraft, paragliders , technically Class 3. Some hang gliders have engines, and are known as powered hang gliders . Due to their commonality of parts, construction and design, they are usually considered by aviation authorities to be hang gliders, even though they may use

688-638: Is only recorded a long time after it allegedly took place. A 17th-century account reports an attempt at flight by the 9th-century poet Abbas Ibn Firnas near Córdoba, Spain which ended in heavy back injuries. The monk Eilmer of Malmesbury is reported by William of Malmesbury ( c.  1080  – c.  1143 ), a fellow monk and historian, to have flown off the roof of his Abbey in Malmesbury , England, sometime between 1000 and 1010 AD, gliding about 200 metres (220 yd) before crashing and breaking his legs. According to these reports, both used

731-563: Is sport and recreation. Gliders were developed from the 1920s for recreational purposes. As pilots began to understand how to use rising air, gliders were developed with a high lift-to-drag ratio . These allowed longer glides to the next source of ' lift ', and so increase their chances of flying long distances. This gave rise to the popular sport known as gliding although the term can also be used to refer to merely descending flight. Such gliders designed for soaring are sometimes called sailplanes. Gliders were mainly built of wood and metal but

774-714: Is supple, consisting mainly of woven material. Military gliders were used mainly during the Second World War for carrying troops and heavy equipment (see Glider infantry ) to a combat zone, including the British Airspeed Horsa , Russian Polikarpov BDP S-1 , American Waco CG-3 , Japanese Kokusai Ku-8 , and German Junkers Ju 322 . These aircraft were towed into the air and most of the way to their target by military transport planes, e.g. C-47 Dakota , or by bombers that had been relegated to secondary activities, e.g. Short Stirling . Once released from

817-413: Is the basis for most recreational flights and competitions, though aerobatics and 'spot landing competitions' also occur. Launching is often done by jogging down a slope, but winch launches behind a towing vehicle are also used. A Paramotor is a paraglider wing powered by a motor attached to the back of the pilot, and is also known as a powered paraglider . A variation of this is the paraplane , which has

860-742: The Bell X-1 in 1946 up to the North American X-15 spent more time flying unpowered than under power. In the 1960s research was also done on unpowered lifting bodies and on the X-20 Dyna-Soar project, but although the X20 was cancelled, this research eventually led to the Space Shuttle. NASA 's Space Shuttle first flew on April 12, 1981. The Shuttle re-entered at Mach 25 at the end of each spaceflight , landing entirely as

903-574: The Horten flying wings , the scaled glider version of the Armstrong Whitworth A.W.52 jet powered flying wing. Lifting bodies were also developed using unpowered prototypes. Although the idea can be dated to Vincent Justus Burnelli in 1921, interest was nearly non-existent until it appeared to be a solution for returning spacecraft. Traditional space capsules have little directional control while conventionally winged craft cannot handle

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946-487: The air sports of gliding , hang gliding and paragliding . However some spacecraft have been designed to descend as gliders and in the past military gliders have been used in warfare. Some simple and familiar types of glider are toys such as paper planes and balsa wood gliders. Glider is the agent noun form of the verb to glide . It derives from Middle English gliden , which in turn derived from Old English glīdan . The oldest meaning of glide may have denoted

989-527: The de Havilland Canada DHC-2 Beaver , Piper J-3 , Hiller OH-23 Raven , Aérospatiale Alouette II / Alouette III and Bölkow 105 . In June 1995 Deelen was used for the world premiere of Karlheinz Stockhausen 's Helikopter-Streichquartett . There was less need for the air base after the end of the Cold War and in 1995 it was closed as such. The top layer of the runway was removed making it no longer suitable for landings by heavy aircraft. Its designation

1032-491: The 1930s, and sport gliding has become the main application of gliders. As their performance improved, gliders began to be used to fly cross-country and now regularly fly hundreds or even over a thousand of kilometers in a day, if the weather is suitable. Military gliders were developed by during World War II by a number of countries for landing troops,. A glider – the Colditz Cock – was even built secretly by POWs as

1075-544: The FAI based on a maximum weight. They are light enough to be transported easily, and can be flown without licensing in some countries. Ultralight gliders have performance similar to hang gliders , but offer some additional crash safety as the pilot can be strapped in an upright seat within a deformable structure. Landing is usually on one or two wheels which distinguishes these craft from hang gliders. Several commercial ultralight gliders have come and gone, but most current development

1118-810: The Korean War, transport aircraft had also become larger and more efficient so that even light tanks could be dropped by parachute, causing gliders to fall out of favor. Even after the development of powered aircraft, gliders have been built for research, where the lack of powerplant reduces complexity and construction costs and speeds development, particularly where new and poorly understood aerodynamic ideas are being tested that might require significant airframe changes. Examples have included delta wings, flying wings, lifting bodies and other unconventional lifting surfaces where existing theories were not sufficiently developed to estimate full scale characteristics. Unpowered flying wings built for aerodynamic research include

1161-400: The altitude (normally a sailplane relies on rising air to maintain altitude) with some being powerful enough to take off by self-launch . There are a wide variety of types differing in the construction of their wings, aerodynamic efficiency, location of the pilot, controls and intended purpose. Most exploit meteorological phenomena to maintain or gain height. Gliders are principally used for

1204-474: The base is only fully operational when exercises take place. The closure of Soesterberg Air Base resulted in a lot more helicopter movements at Gilze-Rijen Air Base , and in order to reduce traffic there it was decided to use Deelen more often as a training site. To facilitate this it was decided to resurface part of the runway and to create a slope for helicopters to practice sloped landings on. The increased importance of Deelen resulted in it once again receiving

1247-546: The designation of Air Base (Dutch: Vliegbasis). There is also glider activity on the field and very nearby there is a second aerodrome used almost exclusively by gliders, Terlet Airfield . Glider aircraft A glider is a fixed-wing aircraft that is supported in flight by the dynamic reaction of the air against its lifting surfaces, and whose free flight does not depend on an engine. Most gliders do not have an engine, although motor-gliders have small engines for extending their flight when necessary by sustaining

1290-402: The engine for the entire flight. Some flexible wing powered aircraft, Ultralight trikes , have a wheeled undercarriage, and so are not hang gliders. A paraglider is a free-flying, foot-launched aircraft. The pilot sits in a harness suspended below a fabric wing. Unlike a hang glider whose wings have frames, the form of a paraglider wing is formed by the pressure of air entering vents or cells in

1333-492: The front of the wing. This is known as a ram-air wing (similar to the smaller parachute design). The paraglider's light and simple design allows them to be packed and carried in large backpacks, and make them one of the simplest and economical modes of flight. Competition level wings can achieve glide ratios up to 1:10 and fly around speeds of 45 km/h (28 mph). Like sailplanes and hang gliders, paragliders use rising air (thermals or ridge lift) to gain height. This process

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1376-451: The ground with a transmitter . These can remain airborne for extended periods by using the lift produced by slopes and thermals . These can be winched into wind by a line attached to a hook under the fuselage with a ring, so that the line will drop when the model is overhead. Other methods of launching include towing aloft using a model powered aircraft, catapult-launching using an elastic bungee cord and hand-launching. When hand-launching

1419-474: The majority now have composite materials using glass, carbon fibre and aramid fibers. To minimise drag , these types have a fuselage and long narrow wings, i.e. a high aspect ratio . In the beginning, there were huge differences in the appearance of early-sailplanes. As technology and materials developed, the aspiration for the perfect balance between lift/drag, climbing ratio and gliding speed, made engineers from various producers create similar designs across

1462-491: The majority now land on wheels, often retractable. Some gliders, known as motor gliders , are designed for unpowered flight, but can deploy piston , rotary , jet or electric engines . Gliders are classified by the FAI for competitions into glider competition classes mainly on the basis of span and flaps. A class of ultralight sailplanes, including some known as microlift gliders and some as 'airchairs', has been defined by

1505-406: The newer "discus" style of wing-tip hand-launching has largely supplanted the earlier "javelin" type of launch. A glide bomb is a bomb with aerodynamic surfaces to allow a gliding flightpath rather than a ballistic one. This allows the bomber aircraft to stand off from the target and launch the bomb from a safe distance. Most types have a remote control system which enables the aircraft to direct

1548-537: The stresses of re-entry, whereas a lifting body combines the benefits of both. The lifting bodies use the fuselage itself to generate lift without employing the usual thin and flat wing so as to minimize the drag and structure of a wing for very high supersonic or hypersonic flight as might be experienced during the re-entry of a spacecraft . Examples of type are the Northrop HL-10 and Martin-Marietta X-24 . The NASA Paresev Rogallo flexible wing glider

1591-403: The tow near the target, they landed as close to the target as possible. Advantages over paratroopers were that heavy equipment could be landed and that the troops were quickly assembled rather than being dispersed over a drop zone. The gliders were treated as disposable leading to construction from common and inexpensive materials such as wood, though a few were retrieved and re-used. By the time of

1634-551: The transport of building materials for a Luftwaffe command bunker and later to supply the base with munitions. It was the headquarters of 1. Jagd Division from May 1942, later re-designated 3. Jagd Division . In 1944 the airfield was extensively bombed by Allied forces in preparation for the Battle of Arnhem , and flying activity from the base was suspended by the Germans. The base was reduced to an auxiliary airfield and turned into

1677-451: The world. Both single-seat and two-seat gliders are available. Initially training was done by short 'hops' in primary gliders which are very basic aircraft with no cockpit and minimal instruments. Since shortly after World War II training has always been done in two-seat dual control gliders, but high performance two-seaters are also used to share the workload and the enjoyment of long flights. Originally skids were used for landing, but

1720-637: Was built to investigate alternative methods of recovering spacecraft. Although this application was abandoned, publicity inspired hobbyists to adapt the flexible wing airfoil for modern hang gliders. Rocket-powered aircraft consume their fuel quickly and so most must land unpowered unless there is another power source. The first rocket plane was the Lippisch Ente , and later examples include the Messerschmitt Me 163 rocket-powered interceptor. The American series of research aircraft starting with

1763-532: Was downgraded to Military Aviation Site Deelen (Dutch: Militair Luchtvaart Terrein Deelen ). However, it has remained in use as a military site for helicopter training and for that reason is frequently visited by various military helicopters, such as the Boeing AH-64 Apache , Boeing CH-47 Chinook and Eurocopter AS532 Cougar . None of these helicopters are based at Deelen however and for that reason

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1806-553: Was founded in 1913 as a base for border patrol missions. When the Netherlands surrendered to Germany in World War II , the Luftwaffe started using the field, significantly expanding and upgrading the base. The Focke-Wulf Fw 190 , Messerschmitt Bf 110 and Junkers Ju 88 were operated from the airfield, and anti-aircraft guns were installed. A railway from the nearby town of Wolfheze was constructed, initially to facilitate

1849-423: Was the first to make repeated successful flights (eventually totaling over 2,000) and was the first to use rising air to prolong his flight. Using a Montgomery tandem-wing glider, Daniel Maloney was the first to demonstrate high-altitude controlled flight using a balloon-launched glider launched from 4,000 feet in 1905. The Wright Brothers developed a series of three manned gliders after preliminary tests with

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