The MC-1 bomb was the first U.S. non-clustered air-dropped chemical munition. The 750-pound (340 kg) MC-1 was first produced in 1959 and carried the nerve agent sarin .
102-478: The MC-1 chemical bomb was first brought into regular mass-production in 1959. A modified general purpose demolition bomb, the MC-1 was the first non- clustered chemical munition in the U.S. arsenal . The MC-1 was designed to be delivered via U.S. Air Force aircraft. The MC-1 was never used against enemy targets. The MC-1 was a 750-pound (340 kg) munition. The weapon had a diameter of 16 inches (41 cm) and
204-420: A "British Parachute" and the "Guardian Angel" parachute. As part of an investigation into Calthrop's design, on 13 January 1917, test pilot Clive Franklyn Collett successfully jumped from a Royal Aircraft Factory BE.2c flying over Orford Ness Experimental Station at 180 metres (590 ft). He repeated the experiment several days later. Following on from Collett, balloon officer Thomas Orde-Lees , known as
306-574: A Lebanese village, on 19 July which killed 1 civilian and injured 12, including 7 children. The Israeli "army defended ... the use of cluster munitions in its offensive with Lebanon , saying that using such munitions was 'legal under international law ' and the army employed them 'in accordance with international standards ' ". Foreign Ministry Spokesman Mark Regev added, "[I]f NATO countries stock these weapons and have used them in recent conflicts – in FR Yugoslavia , Afghanistan and Iraq –
408-613: A conflict has ended, and are costly to locate and remove. This failure rate ranges from 2 percent to 40 percent or more. Cluster munitions are prohibited for those nations that ratified the Convention on Cluster Munitions , adopted in Dublin , Ireland, in May 2008. The Convention entered into force and became binding international law upon ratifying states on 1 August 2010, six months after being ratified by 30 states. As of 10 February 2022,
510-505: A considerably faster forward speed than, say, a modified military canopy. And due to controllable rear-facing vents in the canopy's sides, they also have much snappier turning capabilities, though they are decidedly low-performance compared to today's ram-air rigs. From about the mid-1960s to the late-1970s, this was the most popular parachute design type for sport parachuting (prior to this period, modified military 'rounds' were generally used and after, ram-air 'squares' became common). Note that
612-408: A controlled descent to collapse on impact with the ground. Round parachutes are purely a drag device (that is, unlike the ram-air types, they provide no lift ) and are used in military, emergency and cargo applications (e.g. airdrops ). Most have large dome-shaped canopies made from a single layer of triangular cloth gores . Some skydivers call them "jellyfish 'chutes" because of the resemblance to
714-400: A free-hanging man clutching a crossbar frame attached to a conical canopy. As a safety measure, four straps ran from the ends of the rods to a waist belt. Although the surface area of the parachute design appears to be too small to offer effective air resistance and the wooden base-frame is superfluous and potentially harmful, the basic concept of a working parachute is apparent. The design
816-526: A highly combustible thermobaric aerosol that results in a high pressure explosion when ignited. Anti-personnel cluster bombs use explosive fragmentation to kill troops and destroy soft (unarmored) targets. Along with incendiary cluster bombs, these were among the first types of cluster bombs produced by Nazi Germany during World War II. They were used during the Blitz with delay and booby-trap fusing to hamper firefighting and other damage-control efforts in
918-633: A length of 50 inches (127 cm). The MC-1 was filled with about 220 pounds (100 kg) of sarin (GB) nerve agent . The MC-1 was designed to be air-dropped via the F-4 Phantom II and was unable to fit that aircraft's replacement, the F-16 . Umatilla Chemical Depot stored about 2,400 MC-1 bombs until the final one was demilitarized and destroyed on June 9, 2006. Another 3,047 MC-1s were stored at Johnston Atoll when demilitarization operations began there in 1990. Those weapons were destroyed during
1020-626: A misleading picture during the war of the extent to which cluster weapons were being used and of the civilian casualties they were causing." On 26 April, General Richard Myers , chairman of the Joint Chiefs of Staff, said that the US had caused only one civilian casualty. During the Israeli-Lebanese conflict in 1982 , Israel used cluster munitions, many of them American-made, on targets in southern Lebanon. Israel also used cluster bombs in
1122-481: A more favorable proportion to the weight of the jumper. A square wooden frame, which alters the shape of the parachute from conical to pyramidal, held open Leonardo's canopy. It is not known whether the Italian inventor was influenced by the earlier design, but he may have learned about the idea through the intensive oral communication among artist-engineers of the time . The feasibility of Leonardo's pyramidal design
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#17327936534101224-469: A number of other devices and technical concepts. It was once widely believed that in 1617, Veranzio, then aged 65 and seriously ill, implemented his design and tested the parachute by jumping from St Mark's Campanile, from a bridge nearby, or from St Martin's Cathedral in Bratislava . Various publications incorrectly claimed the event was documented some thirty years later by John Wilkins , one of
1326-462: A parachute stored or housed in a cone-shaped casing under the airplane and attached to a harness on the jumper's body. Štefan Banič patented an umbrella-like design in 1914, and sold (or donated) the patent to the United States military, which later modified his design, resulting in the first military parachute. Banič had been the first person to patent the parachute, and his design was
1428-438: A parachute to descend. (This event was not witnessed by others.) On 12 October 1799, Jeanne Geneviève Garnerin ascended in a gondola attached to a balloon. At 900 meters she detached the gondola from the balloon and descended in the gondola by parachute. In doing so, she became the first woman to parachute. She went on to complete many ascents and parachute descents in towns across France and Europe. Subsequent development of
1530-549: A parachute with a quick release buckle, known as the "Mears parachute", which was in common use from then onwards. The experience with parachutes during the war highlighted the need to develop a design that could be reliably used to exit a disabled airplane. For instance, tethered parachutes did not work well when the aircraft was spinning. After the war, Major Edward L. Hoffman of the United States Army led an effort to develop an improved parachute by bringing together
1632-582: A parachute would be too large for a pilot not wearing one. This is why the German type was stowed in the fuselage, rather than being of the "backpack" type. Weight was – at the very beginning – also a consideration since planes had limited load capacity. Carrying a parachute impeded performance and reduced the useful offensive and fuel load. In the UK, Everard Calthrop , a railway engineer and breeder of Arab horses, invented and marketed through his Aerial Patents Company
1734-747: A report on incidents in Sri Lanka between January and May 2009 that could constitute violations of international humanitarian law or crimes against humanity. This report documented the use of cluster munitions by Sri Lanka’s government forces. Photos and eyewitness accounts described the use of such weapons in several attacks on civilian areas, including an incident on March 7, 2009, in Valayanmadam , where two cluster bombs exploded, causing significant civilian casualties and injuries. The reports suggest that cluster munitions were used in areas declared as safe zones for civilians. According to Gordon Weiss, who
1836-616: A report prepared by Lionel Beehner for the Council on Foreign Relations, the United States restocked Israel's arsenal of cluster bombs, triggering a State Department investigation to determine whether Israel had violated secret agreements it had signed with the United States on their use. As Haaretz reported in November 2006, the Israel Defense Forces Chief of Staff Dan Halutz wanted to launch an investigation into
1938-458: A revolutionary quick-release mechanism – the ripcord – that allowed a falling aviator to expand the canopy only when safely away from the disabled aircraft. Otto Heinecke, a German airship ground crewman, designed a parachute which the German air service introduced in 1918, becoming the world's first air service to introduce a standard parachute. Schroeder company of Berlin manufactured Heinecke's design. The first successful use of this parachute
2040-533: A ring-shaped canopy, often with a large hole in the centre to release the pressure. Sometimes the ring is broken into ribbons connected by ropes to leak air even more. These large leaks lower the stress on the parachute so it does not burst or shred when it opens. Ribbon parachutes made of Kevlar are used on nuclear bombs, such as the B61 and B83 . The principle of the Ram-Air Multicell Airfoil
2142-834: A section of road near the Jonglei state capital, Bor. The strategic town was the scene of heavy fighting, changing hands several times during the South Sudanese Civil War , which erupted in the capital Juba on 15 December 2013 before spreading to other parts of the country. According to UNMAS, the site was contaminated with the remnants of up to eight cluster bombs and an unknown quantity of bomblets. Human Rights Watch reported that "Ukrainian government forces used cluster munitions in populated areas in Donetsk city in early October 2014." Also "circumstances indicate that anti-government forces might also have been responsible for
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#17327936534102244-448: A slightly tapered shape to their leading and/or trailing edges when viewed in plan form, and are known as ellipticals. Sometimes all the taper is on the leading edge (front), and sometimes in the trailing edge (tail). Ellipticals are usually used only by sport parachutists. They often have smaller, more numerous fabric cells and are shallower in profile. Their canopies can be anywhere from slightly elliptical to highly elliptical, indicating
2346-662: A total of 123 states have joined the Convention, as 110 states parties and 13 signatories. The first significantly operationally used cluster bomb was the German SD-2 or Sprengbombe Dickwandig 2 kg , commonly referred to as the Butterfly Bomb . It was used in World War II to attack both civilian and military targets, including on Tokyo and Kyushu . The technology was developed independently by
2448-512: A violation of American law. Carter's administration prepared to notify Congress that American weapons were being used illegally, which would have resulted in military aid to Israel being cut off. The American consul in Jerusalem informed the Israeli government of their plans and, according to Carter, Prime Minister Begin said that the operation was over. During the 16-year-long conflict on
2550-429: Is a cluster bomb that ejects explosive bomblets that are designed to kill personnel and destroy vehicles. Other cluster munitions are designed to destroy runways or electric power transmission lines. Because cluster bombs release many small bomblets over a wide area, they pose risks to civilians both during attacks and afterwards. Unexploded bomblets can kill or maim civilians and/or unintended targets long after
2652-402: Is a marked improvement over another folio (189v), which depicts a man trying to break the force of his fall using two long cloth streamers fastened to two bars, which he grips with his hands. Shortly after, a more sophisticated parachute was sketched by the polymath Leonardo da Vinci in his Codex Atlanticus (fol. 381v) dated to c. 1485 . Here, the scale of the parachute is in
2754-467: Is designed to have an average rate of descent 14% slower than the T-10D, thus resulting in lower landing injury rates for jumpers. The decline in the rate of descent will reduce the impact energy by almost 25% to lessen the potential for injury. A variation on the round parachute is the pull-down apex parachute, invented by a Frenchman named Pierre-Marcel Lemoigne. The first widely used canopy of this type
2856-583: Is to support people, for recreation or as a safety device for aviators, who can exit from an aircraft at height and descend safely to earth. A parachute is usually made of a light, strong fabric. Early parachutes were made of silk . The most common fabric today is nylon . A parachute's canopy is typically dome-shaped, but some are rectangles, inverted domes, and other shapes. A variety of loads are attached to parachutes, including people, food, equipment, space capsules , and bombs . In 852, in Córdoba, Spain ,
2958-712: The 2006 Lebanon War . Two types of cluster munitions were transferred to Israel from the U.S. The first was the CBU-58 which uses the BLU-63 bomblet. This cluster bomb is no longer in production. The second was the MK-20 Rockeye, produced by Honeywell Incorporated in Minneapolis. The CBU-58 was used by Israel in Lebanon in both 1978 and 1982. The Israeli Defense company Israel Military Industries also manufactures
3060-632: The 2020 Nagorno-Karabakh war . The Armenian-populated city of Stepanakert came under bombardment throughout the war, beginning on the first day. Human Rights Watch reported that residential neighborhoods in Stepanakert which lacked any identifiable military targets were hit by the Azerbaijani Army with cluster munitions. Human Rights Watch also identified Azerbaijani usage of cluster munitions in Hadrut . Human Rights Watch also reported
3162-580: The CBU-94/B , was first used by the U.S. in the Kosovo War in 1999. These consist of a TMD (Tactical Munitions Dispenser) filled with 202 submunitions. Each submunition contains a small explosive charge that disperses 147 reels of fine conductive fiber of either carbon or aluminum-coated glass. Their purpose is to disrupt and damage electric power transmission systems by producing short circuits in high-voltage power lines and electrical substations . On
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3264-812: The Gulf War , the United States, France, and the United Kingdom dropped 61,000 cluster bombs, containing 20 million submunitions, according to Human Rights Watch (HRW). The US accounted for 57,000 of these droppings. The US Department of Defense estimated that 1.2 to 1.5 million submunitions did not explode. According to human rights organizations, unexploded submunitions have caused over 4,000 civilian casualties, including 1,600 deaths, in Iraq and Kuwait. 2003–2006 : United States and allies attacked Iraq with 13,000 cluster munitions, containing two million submunitions during Operation Iraqi Freedom, according to
3366-652: The HRW . The majority were DPICMs, or Dual-purpose improved conventional munitions . At multiple times, coalition forces used cluster munitions in residential areas, and the country remains among the most contaminated to this day, bomblets posing a threat to both US military personnel in the area, and local civilians. When these weapons were fired on Baghdad on 7 April 2003 many of the bomblets failed to explode on impact. Afterward, some of them exploded when touched by civilians. USA Today reported that "the Pentagon presented
3468-787: The NATO bombing of Yugoslavia , in 1999, of which the Royal Air Force dropped 531 RBL755 cluster bombs. Both the Americans and the British utilised cluster bombs. On 7 May 1999, between the time of 11:30 and 11:40, a NATO attack was carried out with two containers of cluster bombs and fell in the central part of the city: Reports claimed that 15 civilians were killed, 8 civilians were seriously injured, 11 civilians had sustained minor injuries, 120 housing units were damaged and 47 were destroyed and that 15 cars were damaged. Overall during
3570-697: The Rogallo wing , among other shapes and forms. These were usually an attempt to increase the forward speed and reduce the landing speed offered by the other options at the time. The ram-air parachute's development and the subsequent introduction of the sail slider to slow deployment reduced the level of experimentation in the sport parachuting community. The parachutes are also hard to build. Ribbon and ring parachutes have similarities to annular designs. They are frequently designed to deploy at supersonic speeds. A conventional parachute would instantly burst upon opening and be shredded at such speeds. Ribbon parachutes have
3672-493: The Russian Air Force of using RBK-250 cluster bombs during the conflict. A high-ranking Russian military official denied use of cluster bombs. The Dutch government, after investigating the death of a Dutch citizen, claimed that a cluster munition was propelled by an 9K720 Iskander tactical missile (used by Russia at the time of conflict, and not used by Georgia). In 2009, the U.S. Department of State prepared
3774-615: The Syrian uprising , a few videos of cluster bombs first appeared in 2011, but escalated in frequency near the end of 2012. As Human Rights Watch reported on 13 October 2012, " Eliot Higgins , who blogs on military hardware and tactics used in Syria under the pseudonym 'Brown Moses', compiled a list of the videos showing cluster munition remnants in Syria's various governorates." The type of bombs have been reported to be RBK-250 cluster bombs with AO-1 SCH bomblets (of Soviet design). Designed by
3876-651: The "Mad Major", successfully jumped from Tower Bridge in London, which led to the balloonists of the Royal Flying Corps using parachutes, though they were issued for use in aircraft. In 1911, Solomon Lee Van Meter, Jr. of Lexington, Kentucky, submitted an application for, and in July 1916 received, a patent for a backpack style parachute – the Aviatory Life Buoy. His self-contained device featured
3978-492: The 1990s submunition-based weapons have been designed that deploy smart submunitions, using thermal and visual sensors to locate and attack particular targets, usually armored vehicles. Weapons of this type include the US CBU-97 sensor-fuzed weapon , first used in combat during Operation Iraqi Freedom , the 2003 invasion of Iraq. Some munitions specifically intended for anti-tank use can be set to self-destruct if they reach
4080-399: The Convention on Cluster Munitions. Incendiary cluster bombs are intended to start fires, just like conventional incendiary bombs (firebombs). They contain submunitions of white phosphorus or napalm , and can be combined anti-personnel and anti-tank submunitions to hamper firefighting efforts. In urban areas they have been preceded by the use of conventional explosive bombs to fracture
4182-460: The French word for fall , to describe the aeronautical device's real function. Also in 1785, Jean-Pierre Blanchard demonstrated it as a means of safely disembarking from a hot-air balloon . While Blanchard's first parachute demonstrations were conducted with a dog as the passenger, he later claimed to have had the opportunity to try it himself in 1793 when his hot air balloon ruptured, and he used
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4284-463: The Germans, where the bag was stored in a compartment directly behind the pilot. In many instances where it did not work the shroud lines became entangled with the spinning aircraft. Although this type of parachute saved a number of famous German fighter pilots, including Hermann Göring , no parachutes were issued to the crews of Allied " heavier-than-air " aircraft. It has been claimed that the reason
4386-604: The Moorish man Armen Firman attempted unsuccessfully to fly by jumping from a tower while wearing a large cloak. It was recorded that "there was enough air in the folds of his cloak to prevent great injury when he reached the ground." The earliest evidence for the true parachute dates back to the Renaissance period. The oldest parachute design appears in a manuscript from the 1470s attributed to Francesco di Giorgio Martini (British Library, Add MS 34113, fol. 200v), showing
4488-681: The Soviet Union for use on tank and troop formations, PTAB-2.5M bomblets were used on civilian targets in Mare' in December 2012 by the Syrian government. According to the seventh annual Cluster Munition Report, there is ″compelling evidence″ that Russia has used cluster munitions during their involvement in Syria. Cluster bombs remnants were discovered by a UN de-mining team in February 2014 on
4590-825: The Soviet-Afghan War, the Soviets dealt harshly with Mujaheddin rebels and those who supported them, including leveling entire villages to deny safe havens to their enemy and the usage of cluster bombs. Sea Harriers of the Royal Navy dropped BL755 cluster bombs on Argentinian positions during the Falklands War of 1982. The United States dropped 21 Rockeye cluster bombs during its invasion of Grenada . The armed conflict between Azerbaijan and Armenia in Nagorno Karabakh in 1992–1994 led to
4692-484: The United States Army T-10 static-line parachute. A round parachute with no holes in it is more prone to oscillate and is not considered to be steerable. Some parachutes have inverted dome-shaped canopies. These are primarily used for dropping non-human payloads due to their faster rate of descent. Forward speed (5–13 km/h) and steering can be achieved by cuts in various sections (gores) across
4794-478: The United States Army as it replaces its older T-10 parachutes with T-11 parachutes under a program called Advanced Tactical Parachute System (ATPS). The ATPS canopy is a highly modified version of a cross/ cruciform platform and is square in appearance. The ATPS system will reduce the rate of descent by 30 percent from 21 feet per second (6.4 m/s) to 15.75 feet per second (4.80 m/s). The T-11
4896-643: The United States, Russia and Italy (see Thermos bomb ). The US used the 9-kilogram (20 lb) M41 fragmentation bomb wired together in clusters of 6 or 25 with highly sensitive or proximity fuzes . From the 1970s to the 1990s cluster bombs became standard air-dropped munitions for many nations, in a wide variety of types. They have been produced by 34 countries and used in at least 23. Artillery shells that employ similar principles have existed for decades. They are typically referred to as ICM ( Improved Conventional Munitions ) shells. The US military slang terms for them are "firecracker" or "popcorn" shells, for
4998-691: The Vietnam War era in Vietnam's Quảng Trị province alone. During the South Lebanon conflict in 1978, the IDF used cluster bombs provided by the United States. According to U.S. President Jimmy Carter , this use of the cluster bombs violated the legal agreement between Israel and the U.S. because the weapons had been provided for defensive purposes against an attack on Israel. Israel also transferred American weapons to Saad Haddad's Lebanese militia,
5100-468: The aircraft to escape the blast area in low-altitude attacks). Modern cluster bombs and submunition dispensers can be multiple-purpose weapons containing a combination of anti-armor, anti-personnel, and anti-materiel munitions. The submunitions themselves may also be multi-purpose, such as combining a shaped charge , to attack armour, with a fragmenting case, to attack infantry, material, and light vehicles. They may also have an incendiary function. Since
5202-519: The airframe of their spinning aircraft or because of harness failure, a problem fixed in later versions. The French, British, American and Italian air services later based their first parachute designs on the Heinecke parachute to varying extents. In the UK, Sir Frank Mears , who was serving as a Major in the Royal Flying Corps in France (Kite Balloon section), registered a patent in July 1918 for
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#17327936534105304-566: The amount of taper in the canopy design, which is often an indicator of the responsiveness of the canopy to control input for a given wing loading, and of the level of experience required to pilot the canopy safely. The rectangular parachute designs tend to look like square, inflatable air mattresses with open front ends. They are generally safer to operate because they are less prone to dive rapidly with relatively small control inputs, they are usually flown with lower wing loadings per square foot of area, and they glide more slowly. They typically have
5406-453: The apex closer to the load, distorting the round shape into a somewhat flattened or lenticular shape when viewed from the side. And while called rounds , they generally have an elliptical shape when viewed from above or below, with the sides bulging out more than the for'd-and-aft dimension, the chord (see the lower photo to the right and you likely can ascertain the difference). Due to their lenticular shape and appropriate venting, they have
5508-681: The awarding of the Robert J. Collier Trophy to Major Edward L. Hoffman in 1926. Irvin became the first person to make a premeditated free-fall parachute jump from an airplane. An early brochure of the Irvin Air Chute Company credits William O'Connor as having become, on 24 August 1920, at McCook Field near Dayton, Ohio , the first person to be saved by an Irvin parachute. Test pilot Lt. Harold R. Harris made another life-saving jump at McCook Field on 20 October 1922. Shortly after Harris' jump, two Dayton newspaper reporters suggested
5610-405: The back, or by cutting four lines in the back, thereby modifying the canopy shape to allow air to escape from the back of the canopy, providing limited forward speed. Other modifications sometimes used are cuts in various gores to cause some of the skirt to bow out. Turning is accomplished by forming the edges of the modifications, giving the parachute more speed from one side of the modification than
5712-494: The best elements of multiple parachute designs. Participants in the effort included Leslie Irvin and James Floyd Smith . The team eventually created the Airplane Parachute Type-A. This incorporated three key elements: In 1919, Irvin successfully tested the parachute by jumping from an airplane. The Type-A parachute was put into production and over time saved a number of lives. The effort was recognized by
5814-571: The braking effects of a parachute by accelerating a Russo-Balt automobile to its top speed and then opening a parachute attached to the back seat, thus also inventing the drogue parachute . On 1 March 1912, U.S. Army Captain Albert Berry made the first (attached-type) parachute jump in the United States from a fixed-wing aircraft , a Benoist pusher, while flying above Jefferson Barracks , St. Louis, Missouri . The jump utilized
5916-431: The canopy an annular geometry. This hole can be very pronounced in some designs, taking up more 'space' than the parachute. They also have decreased horizontal drag due to their flatter shape and, when combined with rear-facing vents, can have considerable forward speed. Truly annular designs - with a hole large enough that the canopy can be classified as ring-shaped - are uncommon. Sport parachuting has experimented with
6018-477: The canopy to eliminate violent oscillations. In 1887, Park Van Tassel and Thomas Scott Baldwin invented a parachute in San Francisco, California, with Baldwin making the first successful parachute jump in the western United States. In 1907 Charles Broadwick demonstrated two key advances in the parachute he used to jump from hot air balloons at fairs : he folded his parachute into a backpack , and
6120-519: The conflict between government forces and rebel forces trying to overthrow Gaddafi's government, during the battle of Misrata These reports were denied by the government, and the Secretary of State of the US, Hillary Clinton said she was "not aware" of the specific use of cluster or other indiscriminate weapons in Misurata even though a New York Times investigation refuted those claims. During
6222-495: The creation of the Caterpillar Club for successful parachute jumps from disabled aircraft. Beginning with Italy in 1927, several countries experimented with using parachutes to drop soldiers behind enemy lines . The regular Soviet Airborne Troops were established as early as 1931 after a number of experimental military mass jumps starting from 2 August 1930. Earlier the same year, the first Soviet mass jumps led to
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#17327936534106324-561: The development of the parachuting sport in the Soviet Union . By the time of World War II , large airborne forces were trained and used in surprise attacks, as in the battles for Fort Eben-Emael and The Hague , the first large-scale, opposed landings of paratroopers in military history, by the Germans. This was followed later in the war by airborne assaults on a larger scale, such as the Battle of Crete and Operation Market Garden ,
6426-473: The ensuing decade and operations at Johnston Atoll Chemical Agent Disposal System ended in 2000. Tests were conducted using the MC-1 from July-November 1971 at Dugway Proving Ground in Utah. The aim of these tests, which were part of Project 112 , was twofold. One goal was to determine hazards associated with the accidental release or damage from hostile fire of the MC-1 during takeoff or landing. A second goal
6528-556: The first jump using a nylon parachute in June 1942, the industry switched to nylon. Today's modern parachutes are classified into two categories – ascending and descending canopies. All ascending canopies refer to paragliders , built specifically to ascend and stay aloft as long as possible. Other parachutes, including ram-air non-elliptical, are classified as descending canopies by manufacturers. Some modern parachutes are classified as semi-rigid wings, which are maneuverable and can make
6630-671: The first to properly function in the 20th century. On June 21, 1913, Georgia Broadwick became the first woman to parachute-jump from a moving aircraft, doing so over Los Angeles, California . In 1914, while doing demonstrations for the U.S. Army , Broadwick deployed her chute manually, thus becoming the first person to jump free-fall . The first military use of the parachute was by artillery observers on tethered observation balloons in World War I . These were tempting targets for enemy fighter aircraft , though difficult to destroy, due to their heavy anti-aircraft defenses. Because it
6732-585: The founders of, and secretary of, the Royal Society in London , in his book Mathematical Magick or, the Wonders that may be Performed by Mechanical Geometry , published in London in 1648. However, Wilkins wrote about flying, not parachutes, and does not mention Veranzio, a parachute jump, or any event in 1617. Doubts about this test, which include a lack of written evidence, suggest it never occurred, and
6834-456: The ground without locating a target, theoretically reducing the risk of unintended civilian deaths and injuries. Although smart submunition weapons are much more expensive than standard cluster bombs, fewer smart submunitions are required to defeat dispersed and mobile targets, partly offsetting their cost. Because they are designed to prevent indiscriminate area effects and unexploded ordnance risks, some smart munitions are excluded from coverage by
6936-447: The initial attack, these knocked out 70% of the electrical power supply in Serbia . During the Vietnam War, the US used cluster bombs in air strikes against targets in Vietnam, Laos , and Cambodia . Of the 260 million cluster bomblets that rained down on Laos between 1964 and 1973, particularly on Xieng Khouang province , 80 million failed to explode. As of 2009 about 7,000 people have been injured or killed by explosives left from
7038-555: The latter being the largest airborne military operation ever. Aircraft crew were routinely equipped with parachutes for emergencies as well. In 1937, drag chutes were used in aviation for the first time, by Soviet airplanes in the Arctic that were providing support for the polar expeditions of the era, such as the first drifting ice station , North Pole-1 . The drag chute allowed airplanes to land safely on smaller ice floes . Most parachutes were made of silk until World War II cut off supplies from Japan. After Adeline Gray made
7140-692: The leading edge of the airfoil. The fabric is shaped and the parachute lines trimmed under load such that the ballooning fabric inflates into an airfoil shape. This airfoil is sometimes maintained by use of fabric one-way valves called airlocks . "The first jump of this canopy (a Jalbert Parafoil) was made by International Skydiving Hall of Fame member Paul 'Pop' Poppenhager." Personal ram-air parachutes are loosely divided into two varieties – rectangular or tapered – commonly called "squares" or "ellipticals", respectively. Medium-performance canopies (reserve-, BASE -, canopy formation-, and accuracy-type) are usually rectangular. High-performance, ram-air parachutes have
7242-557: The likelihood of successfully hitting a vehicle. Modern guided submunitions, such as those found in the U.S. CBU-97, can use either a shaped charge or an explosively formed penetrator . Unguided shaped-charge submunitions are designed to be effective against entrenchments that incorporate overhead cover. To simplify supply and increase battlefield effectiveness by allowing a single type of round to be used against nearly any target, submunitions that incorporate both fragmentation and shaped-charge effects are produced. An anti-electrical weapon,
7344-445: The main parachute. When the balloon crew jumped the main part of the parachute was pulled from the bag by the crew's waist harness, first the shroud lines, followed by the main canopy. This type of parachute was first adopted on a large scale for their observation balloon crews by the Germans, and then later by the British and French. While this type of unit worked well from balloons, it had mixed results when used on fixed-wing aircraft by
7446-414: The many small explosions they cause in the target area. A basic cluster bomb consists of a hollow shell and then two to more than 2,000 submunitions or bomblets contained within it. Some types are dispensers that are designed to be retained by the aircraft after releasing their munitions. The submunitions themselves may be fitted with small parachute retarders or streamers to slow their descent (allowing
7548-411: The marine organisms. Modern sports parachutists rarely use this type. The first round parachutes were simple, flat circulars. These early parachutes suffered from instability caused by oscillations. A hole in the apex helped to vent some air and reduce the oscillations. Many military applications adopted conical, i.e., cone-shaped, or parabolic (a flat circular canopy with an extended skirt) shapes, such as
7650-614: The more up-to-date M-85 cluster bomb. Hezbollah fired Chinese-manufactured cluster munitions against Israeli civilian targets, using 122 mm rocket launchers during the 2006 war, hitting Kiryat Motzkin , Nahariya , Karmiel , Maghar , and Safsufa . A total of 113 rockets and 4,407 submunitions were fired into Israel during the war. According to the United Nations Mine Action Service , Israel dropped up to four million submunitions on Lebanese soil, of which one million remain unexploded. According to
7752-522: The operation, at least 23 Serb civilians were killed by cluster munitions. At least six Serbs, including three children were killed by bomblets after the operation ended, and up to 23 square kilometres (8.9 sq mi) in six areas remain "cluster contaminated", according to Serbian government, including on Mt. Kopaonik near the slopes of the ski resort. The UK contributed £86,000 to the Serbian Mine Action Centre. 1991 : During
7854-480: The other. This gives the jumpers the ability to steer the parachute (such as the United States Army MC series parachutes), enabling them to avoid obstacles and to turn into the wind to minimize horizontal speed at landing . The unique design characteristics of cruciform parachutes decrease oscillation (its user swinging back and forth) and violent turns during descent. This technology will be used by
7956-399: The parachute focused on it becoming more compact. While the early parachutes were made of linen stretched over a wooden frame, in the late 1790s, Blanchard began making parachutes from folded silk , taking advantage of silk's strength and light weight . In 1797, André Garnerin made the first descent of a "frameless" parachute covered in silk. In 1804, Jérôme Lalande introduced a vent in
8058-461: The parachute in his arms as he left the aircraft. In the same year (1911), Russian Gleb Kotelnikov invented the first knapsack parachute, although Hermann Lattemann and his wife Käthe Paulus had been jumping with bagged parachutes in the last decade of the 19th century. In 1912, on a road near Tsarskoye Selo , years before it became part of St. Petersburg , Kotelnikov successfully demonstrated
8160-526: The parachute was pulled from the pack by a static line attached to the balloon. When Broadwick jumped from the balloon, the static line became taut, pulled the parachute from the pack, and then snapped. In 1911 a successful test took place with a dummy at the Eiffel Tower in Paris . The puppet's weight was 75 kg (165 lb); the parachute's weight was 21 kg (46 lb). The cables between
8262-404: The puppet and the parachute were 9 m (30 ft) long. On February 4, 1912, Franz Reichelt jumped to his death from the tower during initial testing of his wearable parachute. Also in 1911, Grant Morton made the first parachute jump from an airplane , a Wright Model B piloted by Phil Parmalee , at Venice Beach , California . Morton's device was of the "throw-out" type where he held
8364-574: The roofs and walls of buildings to expose their flammable contents. One of the earliest examples is the so-called Molotov bread basket used by the Soviet Union in the Winter War of 1939–40. Incendiary clusters were extensively used by both sides in the strategic bombings of World War II . They caused firestorms and conflagrations in the bombing of Dresden in World War II and the firebombing of Tokyo . Some modern bomb submunitions deliver
8466-468: The square frame but replaced the canopy with a bulging sail-like piece of cloth that he came to realize decelerates a fall more effectively. A now-famous depiction of a parachute that he dubbed Homo Volans (Flying Man), showing a man parachuting from a tower, presumably St Mark's Campanile in Venice , appeared in his book on mechanics, Machinae Novae ("New Machines", published in 1615 or 1616), alongside
8568-460: The target areas. They were also used with a contact fuze when attacking entrenchments. These weapons were widely used during the Vietnam War when many thousands of tons of submunitions were dropped on Laos, Cambodia and Vietnam. Most anti-armor munitions contain shaped charge warheads to pierce the armor of tanks and armored fighting vehicles . In some cases, guidance is used to increase
8670-630: The territory of Western Sahara , the Royal Moroccan Army (RMA) dropped cluster bombs. The RMA used both artillery-fired and air-dropped cluster munitions. BLU-63, M42 and MK118 submunitions were used at multiple locations in Bir Lahlou, Tifarity, Mehaires, Mijek and Awganit. More than 300 cluster strike areas have been recorded in the MINURSO Mine Action Coordination Center database. During
8772-633: The use of cluster bombs during the Lebanon war. Halutz claimed that some cluster bombs had been fired against his direct order, which stated that cluster bombs should be used with extreme caution and not be fired into populated areas. The IDF apparently disobeyed this order. Human Rights Watch said there was evidence that Israel had used cluster bombs very close to civilian areas and described them as "unacceptably inaccurate and unreliable weapons when used around civilians" and that "they should never be used in populated areas". Human Rights Watch has accused Israel of using cluster munitions in an attack on Bilda,
8874-459: The use of cluster munitions against military and civilian targets in the region. As of 2010, 93 km (36 sq mi) remain off-limits due to contamination with unexploded cluster ordnance. HALO Trust has made major contributions to the cleanup effort. During renewed hostilities in April 2016 , HALO Trust reported the use of cluster bombs by Azerbaijan, having found cluster munitions in
8976-535: The use of cluster munitions by the Armenian forces during the months-long bombardment of Tartar , missile attacks on Barda and on Goranboy . Amnesty International also confirmed that the Armenian forces had used cluster munitions in Barda, which resulted in the deaths of 25 Azerbaijani civilians, according to Azerbaijan. About 2,000 cluster bombs containing 380,000 sub-munitions were dropped on Yugoslavia during
9078-538: The use of cluster munitions". British-supplied and U.S.-supplied cluster bombs have been used by Saudi Arabian-led military coalition against Houthi militias in Yemen , according to Human Rights Watch and Amnesty International. Saudi Arabia is not signatory to the Convention on Cluster Munitions. Parachute A parachute is a device used to slow the motion of an object through an atmosphere by creating drag or aerodynamic lift . A major application
9180-436: The use of the word elliptical for these 'round' parachutes is somewhat dated and may cause slight confusion, since some 'squares' (i.e. ram-airs) are elliptical nowadays, too. Some designs with a pull-down apex have the fabric removed from the apex to open a hole through which air can exit (most, if not all, round canopies have at least a small hole to allow easier tie-down for packing - these aren't considered annular), giving
9282-531: The villages of Nerkin Horatagh and Kiçik Qarabəy . Azerbaijan reported that the Armenian forces had used cluster munition against Azerbaijani civilians in the given period. According to the Cluster Munition Monitor report in 2010, neither Armenia nor Azerbaijan not acceded to become a member of the Convention on Cluster Munitions . Further use of cluster munition was reported during
9384-491: The world has no reason to point a finger at Israel." Georgia admitted using cluster bombs during the war, according to Human Rights Watch but stressed they were only used against military targets. The Georgian army used LAR-160 multiple rocket launchers to fire MK4 LAR 160 type rockets (with M-85 bomblets) with a range of 45 kilometers the Georgian Minister of Defense (MoD) said. Human Rights Watch accused
9486-421: Was by Leutnant Helmut Steinbrecher of Jagdstaffel 46 , who bailed on 27 June 1918 from his stricken fighter airplane to become the first pilot in history to successfully do so. Although many pilots were saved by the Heinecke design, their efficacy was relatively poor. Out of the first 70 German airmen to bail out, around a third died, These fatalities were mostly due to the chute or ripcord becoming entangled in
9588-535: Was called the Para-Commander (made by the Pioneer Parachute Co.), although there are many other canopies with a pull-down apex produced in the years thereafter - these had minor differences in attempts to make a higher performance rig, such as different venting configurations. They are all considered 'round' parachutes, but with suspension lines to the canopy apex that apply load there and pull
9690-432: Was conceived in 1963 by Canadian Domina "Dom" C. Jalbert, but serious problems had to be solved before a ram-air canopy could be marketed to the sport parachuting community. Ram-air parafoils are steerable (as are most canopies used for sport parachuting), and have two layers of fabric—top and bottom—connected by airfoil-shaped fabric ribs to form "cells". The cells fill with higher-pressure air from vents that face forward on
9792-414: Was difficult to escape from them, and dangerous when on fire due to their hydrogen inflation, observers would abandon them and descend by parachute as soon as enemy aircraft were seen. The ground crew would then attempt to retrieve and deflate the balloon as quickly as possible. The main part of the parachute was in a bag suspended from the balloon with the pilot wearing only a simple waist harness attached to
9894-527: Was instead a misreading of historical notes. The modern parachute was invented in the late 18th century by Louis-Sébastien Lenormand in France , who made the first recorded public jump in 1783. Lenormand also sketched his device beforehand. Two years later, in 1785, Lenormand coined the word "parachute" by hybridizing an Italian prefix para , an imperative form of parare = to avert, defend, resist, guard, shield or shroud, from paro = to parry, and chute ,
9996-578: Was successfully tested in 2000 by Briton Adrian Nicholas and again in 2008 by the Swiss skydiver Olivier Vietti-Teppa. According to historian of technology Lynn White , these conical and pyramidal designs, much more elaborate than early artistic jumps with rigid parasols in Asia, mark the origin of "the parachute as we know it." The Croatian polymath and inventor Fausto Veranzio , or Faust Vrančić (1551–1617), examined da Vinci's parachute sketch and kept
10098-576: Was the spokesperson for the UN in Colombo , the "largest remaining functioning hospital" in the Vanni region of Sri Lanka was bombed. The Sri Lankan military has been accused of bombing the hospital with cluster munitions, but cluster bombs were not used in the bombing of the hospital. The government has denied using cluster munitions, but in 2012 unexploded cluster bombs were found, according to Allan Poston, who
10200-498: Was the technical advisor for the UN Development Program ’s mine action group in Sri Lanka. An article published by The Guardian in 2016 provided photographic evidence and testimonies from former de-miners and civilians pointing to the use of Russian-made cluster bombs in areas that the government had declared as "no-fire zones." It was reported in April 2011 that Colonel Gaddafi 's forces had used cluster bombs in
10302-469: Was to avoid pilots jumping from the plane when hit rather than trying to save the aircraft, but Air Vice Marshall Arthur Gould Lee , himself a pilot during the war, examined the British War Office files after the war and found no evidence of such claim. Airplane cockpits at that time also were not large enough to accommodate a pilot and a parachute, since a seat that would fit a pilot wearing
10404-438: Was to determine if leak suppressant and disposal procedures for damaged bombs were adequate. For the purpose of the tests the MC-1 was filled with water and a sarin simulant, di(2-ethylhexyl) phthalate (DEHP). The bombs were dropped from an F-4 during the tests. Cluster bomb A cluster munition is a form of air-dropped or ground-launched explosive weapon that releases or ejects smaller submunitions. Commonly, this
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