A parachute is a device designed to slow an object's descent through an

atmosphere An atmosphere () is a layer of gases that envelop an astronomical object, held in place by the gravity of the object. A planet retains an atmosphere when the gravity is great and the temperature of the atmosphere is low. A stellar atmosph ...

by creating drag or aerodynamic

lift Lift or LIFT may refer to: Physical devices * Elevator, or lift, a device used for raising and lowering people or goods ** Paternoster lift, a type of lift using a continuous chain of cars which do not stop ** Patient lift, or Hoyer lift, mobile ...

. It is primarily used to safely support people exiting aircraft at height, but also serves various purposes like slowing cargo, aiding in space capsule recovery, and stabilizing vehicles or objects. Modern parachutes are typically made from durable fabrics like

nylon Nylon is a family of synthetic polymers characterised by amide linkages, typically connecting aliphatic or Polyamide#Classification, semi-aromatic groups. Nylons are generally brownish in color and can possess a soft texture, with some varieti ...

and come in various shapes, such as dome-shaped, rectangular, and inverted domes, depending on their specific function. The concept of the parachute dates back to ancient attempts at flight. In 852 AD, Armen Firman, in

Córdoba, Spain Córdoba ( ; ), or sometimes Cordova ( ), is a city in Andalusia, Spain, and the capital of the Province of Córdoba (Spain), province of Córdoba. It is the third most populated Municipalities in Spain, municipality in Andalusia. The city prim ...

, made the first recorded jump with a large cloak to slow his fall. Renaissance figures like

Francesco di Giorgio Martini Francesco di Giorgio Martini (1439–1501) was an Italian architect, engineer, painter, sculptor, and writer. As a painter, he belonged to the Sienese School. He was considered a visionary architectural theorist—in Nikolaus Pevsner's terms ...

and

Leonardo da Vinci Leonardo di ser Piero da Vinci (15 April 1452 - 2 May 1519) was an Italian polymath of the High Renaissance who was active as a painter, draughtsman, engineer, scientist, theorist, sculptor, and architect. While his fame initially rested o ...

later sketched designs resembling modern parachutes, but it wasn’t until the 18th century that the first successful jumps occurred. French

Louis-Sébastien Lenormand Louis-Sébastien Lenormand (May 25, 1757 – April 4, 1837) was a French chemist, physicist, inventor, monk, and a pioneer in parachuting. Early life Lenormand was born in Montpellier on May 25, 1757 as the son of a clockmaker. Between 1775 and ...

made the first public jump in 1783, and he coined the term "parachute" in 1785. In the following years, key advancements were made by figures like

André Garnerin André — sometimes transliterated as Andre — is the French and Portuguese form of the name Andrew and is now also used in the English-speaking world. It used in France, Quebec, Canada and other French-speaking countries, as well in Portugal ...

, with parachutes becoming lighter, more reliable, and easier to deploy. By the time of

World War I World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...

, parachutes had become essential for aviators, and significant improvements were made to their designs, including the introduction of the backpack-style parachute by

Charles Broadwick Charles Broadwick (born John Murray, 1870s–1943) was an American pioneering parachute, parachutist and inventor. An executive director of the U.S. Parachute Association, Ed Scott, said "just about all modern parachute systems" use ideas Broadwi ...

and

Gleb Kotelnikov Gleb Yevgenyevich Kotelnikov (), was born on , at the household of a St. Petersburg Institute professor who taught higher mathematics and mechanics. His parents moved to Saint Petersburg from Poltava in 1868. Kotelnikov belonged to a theatre-l ...

's knapsack parachute. After

World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...

, parachuting became a popular sport, and new materials like nylon replaced silk. Today, parachutes are used in military, recreational, and emergency situations, continuing to evolve with advances in technology and design.

History

Middle Ages

In 852, in

, the Andalusian 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."

Early Renaissance

The earliest evidence for the true parachute dates back to the

Renaissance The Renaissance ( , ) is a Periodization, period of history and a European cultural movement covering the 15th and 16th centuries. It marked the transition from the Middle Ages to modernity and was characterized by an effort to revive and sur ...

period. The oldest parachute design appears in a manuscript from the 1470s attributed to

(British Library, Add MS 34113, fol. 200v), showing 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 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 A polymath or polyhistor is an individual whose knowledge spans many different subjects, known to draw on complex bodies of knowledge to solve specific problems. Polymaths often prefer a specific context in which to explain their knowledge, ...

in his ''

Codex Atlanticus The Codex Atlanticus (Atlantic Codex) is a 12-volume, bound set of drawings and writings (in Italian) by Leonardo da Vinci, the largest single set. Its name indicates the large paper used to preserve original Leonardo notebook pages, which was u ...

'' (fol. 381v) dated to . Here, the scale of the parachute is in 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 was successfully tested in 2000 by

Briton British people or Britons, also known colloquially as Brits, are the citizens of the United Kingdom, the British Overseas Territories, and the Crown dependencies.: British nationality law governs modern British citizenship and nationality, w ...

Adrian Nicholas Adrian Nicholas (4 March 1962 – 17 September 2005) was a British skydiver who completed more than 8,000 jumps in 30 countries. He is best known for his successful test in July 2000 of Leonardo da Vinci's (1452–1519) parachute design, provi ...

and again in 2008 by the Swiss skydiver Olivier Vietti-Teppa. According to historian of technology

Lynn White Lynn Townsend White Jr. (April 29, 1907 – March 30, 1987) was an American historian of technology and college president. He was an instructor in medieval history at Princeton University from 1933 to 1937, a professor at Stanford University fro ...

, these conical and pyramidal designs, much more elaborate than early artistic jumps with rigid

parasol An umbrella or parasol is a folding canopy (building), canopy supported by wooden or metal ribs that is mounted on a wooden, metal, or plastic pole. It is usually designed to protect a person against rain. The term ''umbrella'' is traditionall ...

s in Asia, mark the origin of "the parachute as we know it."

The Croatian polymath and inventor

Fausto Veranzio Fausto Veranzio (; ; Hungarian language, Hungarian and Latin regional pronunciation, Vernacular Latin: ''Verancsics Faustus'';Andrew L. SimonMade in Hungary: Hungarian contributions to universal culture/ref> 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 St Mark's Campanile (, ) is the bell tower of St Mark's Basilica in Venice, Italy. The campanile is a reconstruction completed in 1912, the previous tower having collapsed in 1902. At in height, it is the tallest structure in Venice and is collo ...

Venice Venice ( ; ; , formerly ) is a city in northeastern Italy and the capital of the Veneto Regions of Italy, region. It is built on a group of 118 islands that are separated by expanses of open water and by canals; portions of the city are li ...

, appeared in his book on mechanics, ''Machinae Novae'' ("New Machines", published in 1615 or 1616), alongside 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 Bratislava (German: ''Pressburg'', Hungarian: ''Pozsony'') is the Capital city, capital and largest city of the Slovakia, Slovak Republic and the fourth largest of all List of cities and towns on the river Danube, cities on the river Danube. ...

. Various publications incorrectly claimed the event was documented some thirty years later by

John Wilkins John Wilkins (14 February 1614 – 19 November 1672) was an English Anglican ministry, Anglican clergyman, Natural philosophy, natural philosopher, and author, and was one of the founders of the Royal Society. He was Bishop of Chester from 1 ...

, one of the founders of, and secretary of, the

Royal Society The Royal Society, formally The Royal Society of London for Improving Natural Knowledge, is a learned society and the United Kingdom's national academy of sciences. The society fulfils a number of roles: promoting science and its benefits, re ...

London London is the Capital city, capital and List of urban areas in the United Kingdom, largest city of both England and the United Kingdom, with a population of in . London metropolitan area, Its wider metropolitan area is the largest in Wester ...

, 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 was instead a misreading of historical notes.

18th and 19th centuries

The modern parachute was invented in the late 18th century by

France France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlan ...

, 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'', the French word for ''fall'', to describe the aeronautical device's real function. Also in 1785,

Jean-Pierre Blanchard Jean-Pierre rançoisBlanchard (; 4 July 1753 – 7 March 1809) was a French inventor, best known as a pioneer of gas balloon flight, who distinguished himself in the conquest of the air in a balloon. Notable for his successful hydrogen balloo ...

demonstrated it as a means of safely disembarking from a

hot-air balloon A hot air balloon is a lighter-than-air aircraft consisting of a bag, called an envelope, which contains heated air. Suspended beneath is a gondola or wicker basket (in some long-distance or high-altitude balloons, a capsule), which carries ...

. 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 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 the parachute focused on it becoming more compact. While the early parachutes were made of

linen Linen () is a textile made from the fibers of the flax plant. Linen is very strong and absorbent, and it dries faster than cotton. Because of these properties, linen is comfortable to wear in hot weather and is valued for use in garments. Lin ...

stretched over a wooden frame, in the late 1790s, Blanchard began making parachutes from folded

silk Silk is a natural fiber, natural protein fiber, some forms of which can be weaving, woven into textiles. The protein fiber of silk is composed mainly of fibroin and is most commonly produced by certain insect larvae to form cocoon (silk), c ...

, taking advantage of silk's strength and light

weight In science and engineering, the weight of an object is a quantity associated with the gravitational force exerted on the object by other objects in its environment, although there is some variation and debate as to the exact definition. Some sta ...

. In 1797,

made the first descent of a "frameless" parachute covered in silk. In 1804,

Jérôme Lalande Joseph Jérôme Lefrançois de Lalande (; 11 July 1732 – 4April 1807) was a French astronomer, freemason and writer. He is known for having estimated a precise value of the astronomical unit (the distance from the Earth to the Sun) using measu ...

introduced a vent in the canopy to eliminate violent oscillations. In 1887, Park Van Tassel and

Thomas Scott Baldwin Thomas Scott Baldwin (June 30, 1854 – May 17, 1923) was a pioneer balloon (aircraft), balloonist and United States Army, U.S. Army major (rank), major during World War I. He was the first American to descend from a balloon by parachute. Early ...

invented a parachute in San Francisco, California, with Baldwin making the first successful parachute jump in the western United States.

Eve of World War I

In 1907

demonstrated two key advances in the parachute he used to jump from

hot air balloon A hot air balloon is a lighter-than-air aircraft consisting of a bag, called an envelope, which contains heated air. Suspended beneath is a gondola or wicker basket (in some long-distance or high-altitude balloons, a capsule), which carri ...

s at

fair A fair (archaic: faire or fayre) is a gathering of people for a variety of entertainment or commercial activities. Fairs are typically temporary with scheduled times lasting from an afternoon to several weeks. Fairs showcase a wide range of go ...

s: he folded his parachute into a

backpack A backpack, also called knapsack, schoolbag, rucksack, pack, booksack, bookbag, haversack, packsack, or backsack, is in its simplest frameless form, a fabric sack carried on one's back and secured with two straps that go over the shoulders; b ...

, and the parachute was pulled from the pack by a

static line A static line is a fixed cord attached to a large, stable object. It is used to open parachutes automatically for paratroopers and novice parachutists. Design and use A static line is a cord attached at one end to the aircraft and at the o ...

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 The Eiffel Tower ( ; ) is a wrought-iron lattice tower on the Champ de Mars in Paris, France. It is named after the engineer Gustave Eiffel, whose company designed and built the tower from 1887 to 1889. Locally nicknamed "''La dame de fe ...

Paris Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, largest city of France. With an estimated population of 2,048,472 residents in January 2025 in an area of more than , Paris is the List of ci ...

. The puppet's weight was ; the parachute's weight was . The cables between the puppet and the parachute were long. On February 4, 1912,

Franz Reichelt Franz Reichelt (16 October 1878 – 4 February 1912), also known as Frantz Reichelt or François Reichelt, was an Austro-Hungarian-born French tailor, inventor and parachuting pioneer, now sometimes referred to as the Flying Tailor, who is remem ...

jumped to his death from the tower during initial testing of his wearable parachute. Also in 1911,

Grant Morton Grant Morton (1857?–1920), born William H. Morton, was one of the first people to successfully attempt skydiving, and is sometimes credited with the first skydive and jump from a powered aeroplane, in 1911. Supposedly, at age 54, Morton, a vetera ...

made the first parachute jump from an

airplane An airplane (American English), or aeroplane (Commonwealth English), informally plane, is a fixed-wing aircraft that is propelled forward by thrust from a jet engine, Propeller (aircraft), propeller, or rocket engine. Airplanes come in a vari ...

, a

Wright Model B The Wright Model B is an early pusher biplane designed by the Wright brothers in the United States in 1910. It was the first of their designs to be built in quantity. Unlike the Model A, it featured a true elevator carried at the tail rath ...

piloted by Phil Parmalee, at Venice Beach,

California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...

. Morton's device was of the "throw-out" type where he held the parachute in his arms as he left the aircraft. In the same year (1911), Russian

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. Albert Berry parachute

In 1912, on a road near

Tsarskoye Selo Tsarskoye Selo (, , ) was the town containing a former residence of the Russian House of Romanov, imperial family and visiting nobility, located south from the center of Saint Petersburg. The residence now forms part of the Pushkin, Saint Peter ...

, years before it became part of

St. Petersburg Saint Petersburg, formerly known as Petrograd and later Leningrad, is the second-largest city in Russia after Moscow. It is situated on the River Neva, at the head of the Gulf of Finland on the Baltic Sea. The city had a population of 5,601, ...

, Kotelnikov successfully demonstrated the braking effects of a parachute by accelerating a

Russo-Balt Russo-Balt (sometimes Russobalt or Russo-Baltique) was one of the first Russian companies that produced vehicles and aircraft between 1909 and 1923. History Riga factory The Russo-Baltic Wagon Factory (; , RBVZ) was founded in 1874 in Rig ...

automobile to its top speed and then opening a parachute attached to the back seat, thus also inventing the

drogue parachute A drogue parachute, also called drag chute, is a parachute designed for deployment from a rapidly moving object. It can be used for various purposes, such as to decrease speed, to provide control and stability, as a pilot parachute to deploy ...

. On 1 March 1912,

U.S. Army The United States Army (USA) is the primary land service branch of the United States Department of Defense. It is designated as the Army of the United States in the United States Constitution.Article II, section 2, clause 1 of the United Stat ...

Captain Albert Berry made the first (attached-type) parachute jump in the

United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...

from a

fixed-wing aircraft A fixed-wing aircraft is a heavier-than-air aircraft, such as an airplane, which is capable of flight using aerodynamic lift. Fixed-wing aircraft are distinct from rotary-wing aircraft (in which a rotor mounted on a spinning shaft generate ...

, a Benoist pusher, while flying above

Jefferson Barracks The Jefferson Barracks Military Post is located on the Mississippi River at Lemay, Missouri, south of St. Louis. It was an important and active U.S. Army installation from 1826 through 1946. It is the oldest operating U.S. military installatio ...

St. Louis, Missouri St. Louis ( , sometimes referred to as St. Louis City, Saint Louis or STL) is an Independent city (United States), independent city in the U.S. state of Missouri. It lies near the confluence of the Mississippi River, Mississippi and the Miss ...

. The jump utilized 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 Štefan Banič (; 23 November 1870 – 2 January 1941) was a Slovak inventor who patented an early parachute design. Born in Jánostelek ('', Smolenická Nová Ves''), Austria-Hungary (now Smolenická Nová Ves, a part of Smolenice, Slovak ...

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.Štefan Banič, Konštruktér, vynálezca
Matematický ústav, Slovenská akadémia vied, obituary. Retrieved 21 October 2010. Banič had been the first person to patent the parachute, and his design was 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 Los Angeles, often referred to by its initials L.A., is the List of municipalities in California, most populous city in the U.S. state of California, and the commercial, Financial District, Los Angeles, financial, and Culture of Los Angeles, ...

. In 1914, while doing demonstrations for the

, Broadwick deployed her chute manually, thus becoming the first person to jump

free-fall In classical mechanics, free fall is any motion of a body where gravity is the only force acting upon it. A freely falling object may not necessarily be falling down in the vertical direction. If the common definition of the word "fall" is used, ...

World War I

The first military use of the parachute was by

artillery observer An artillery observer, artillery spotter, or forward observer (FO) is a soldier responsible for directing artillery and mortar fire support onto a target. An artillery observer usually accompanies a tank or infantry unit. Spotters ensure that ...

s on tethered

observation balloons An observation balloon is a type of balloon that is employed as an aerial platform for gathering intelligence and spotting artillery. The use of observation balloons began during the French Revolutionary Wars, reaching their zenith during World ...

. These were tempting targets for enemy

fighter aircraft Fighter aircraft (early on also ''pursuit aircraft'') are military aircraft designed primarily for air-to-air combat. In military conflict, the role of fighter aircraft is to establish air supremacy, air superiority of the battlespace. Domina ...

, though difficult to destroy, due to their heavy

anti-aircraft Anti-aircraft warfare (AAW) is the counter to aerial warfare and includes "all measures designed to nullify or reduce the effectiveness of hostile air action".AAP-6 It encompasses surface-based, subsurface ( submarine-launched), and air-ba ...

defenses. Because it 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 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 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 Hermann Wilhelm Göring (or Goering; ; 12 January 1893 – 15 October 1946) was a German Nazism, Nazi politician, aviator, military leader, and convicted war criminal. He was one of the most powerful figures in the Nazi Party, which gov ...

, no parachutes were issued to the crews of Allied "

heavier-than-air The history of aviation spans over two millennia, from the earliest innovations like kites and attempts at tower jumping to supersonic and hypersonic flight in powered, heavier-than-air jet aircraft. Kite flying in China, dating back several ...

" aircraft. It has been claimed that the reason 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 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 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 . He repeated the experiment several days later. Following on from Collett, balloon officer

Thomas Orde-Lees Major (United Kingdom), Major Thomas Hans Orde-Lees, Order of the British Empire, OBE, Air Force Cross (United Kingdom), AFC (23 May 1877 – 1 December 1958) was a member of Sir Ernest Shackleton's Imperial Trans-Antarctic Expedition of 1914&n ...

, known as the "Mad Major", successfully jumped from Tower Bridge in London, which led to the balloonists of the

Royal Flying Corps The Royal Flying Corps (RFC) was the air arm of the British Army before and during the First World War until it merged with the Royal Naval Air Service on 1 April 1918 to form the Royal Air Force. During the early part of the war, the RFC sup ...

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 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 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 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 Sir Frank Charles Mears LLD (11 July 1880 – 25 January 1953) was an architect and Scotland's leading planning consultant from the 1930s to the early 1950s. Life and work Born in Tynemouth he moved to Edinburgh in 1897 when his father, Dr ...

, who was serving as a Major in the

in France (Kite Balloon section), registered a patent in July 1918 for a parachute with a quick release buckle, known as the "Mears parachute", which was in common use from then onwards.

Post-World War I

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 The United States Army (USA) is the primary Land warfare, land service branch of the United States Department of Defense. It is designated as the Army of the United States in the United States Constitution.Article II, section 2, clause 1 of th ...

led an effort to develop an improved parachute by bringing together the best elements of multiple parachute designs. Participants in the effort included Leslie Irvin and

James Floyd Smith James Floyd Smith (17 October 1884 – 18 April 1956) was an inventor, aviation pioneer, and parachute manufacturer. With borrowed money, he built, then taught himself to fly his own airplane. He worked as a flight instructor and test pi ...

. The team eventually created the Airplane Parachute Type-A. This incorporated three key elements: * storing the parachute in a soft pack worn on the back, as demonstrated by

in 1906; * a ripcord for manually deploying the parachute at a safe distance from the airplane, from a design by Albert Leo Stevens; and * a

pilot chute A pilot chute is a small auxiliary parachute used to deploy the main or reserve parachute. The pilot chute is connected by a bridle to the deployment bag containing the parachute. Pilot chutes are a critical component of all modern skydiving and B ...

that draws the main canopy from the pack. 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 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 McCook Field was an airfield and aviation experimentation station in Dayton, Ohio, United States. It was operated by the Aviation Section, U.S. Signal Corps and its successor the United States Army Air Service from 1917 to 1927. It was named f ...

near

Dayton, Ohio Dayton () is a city in Montgomery County, Ohio, United States, and its county seat. It is the List of cities in Ohio, sixth-most populous city in Ohio, with a population of 137,644 at the 2020 United States census, 2020 census. The Dayton metro ...

, 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 the creation of the Caterpillar Club for successful parachute jumps from disabled aircraft. Beginning with

Italy Italy, officially the Italian Republic, is a country in Southern Europe, Southern and Western Europe, Western Europe. It consists of Italian Peninsula, a peninsula that extends into the Mediterranean Sea, with the Alps on its northern land b ...

in 1927, several countries experimented with using parachutes to drop soldiers behind enemy lines. The regular

Soviet Airborne Troops The Soviet Airborne Forces or VDV (from ''Vozdushno- desantnye voyska SSSR'', Russian: Воздушно-десантные войска СССР, ВДВ; Air-landing Forces) was a separate troops branch of the Soviet Armed Forces. First formed b ...

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 the development of the parachuting sport in the

Soviet Union The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...

. By the time of

, large

airborne forces Airborne forces are ground combat units carried by aircraft and airdropped into battle zones, typically by parachute drop. Parachute-qualified infantry and support personnel serving in airborne units are also known as paratroopers. The main ...

were trained and used in surprise attacks, as in the battles for Fort Eben-Emael and

The Hague The Hague ( ) is the capital city of the South Holland province of the Netherlands. With a population of over half a million, it is the third-largest city in the Netherlands. Situated on the west coast facing the North Sea, The Hague is the c ...

, 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 The Battle of Crete (, ), codenamed Operation Mercury (), was a major Axis Powers, Axis Airborne forces, airborne and amphibious assault, amphibious operation during World War II to capture the island of Crete. It began on the morning of 20 May ...

and Operation Market Garden, the latter being the largest airborne military operation ever. Aircraft crew were routinely equipped with parachutes for emergencies as well. In 1937,

drag chute A drogue parachute, also called drag chute, is a parachute designed for deployment from a rapidly moving object. It can be used for various purposes, such as to decrease speed, to provide control and stability, as a pilot parachute to deploy ...

s were used in aviation for the first time, by

Soviet The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...

airplanes in the

Arctic The Arctic (; . ) is the polar regions of Earth, polar region of Earth that surrounds the North Pole, lying within the Arctic Circle. The Arctic region, from the IERS Reference Meridian travelling east, consists of parts of northern Norway ( ...

that were providing support for the polar expeditions of the era, such as the first

drifting ice station A drifting ice station is a temporary or semi-permanent facility built on an ice floe. During the Cold War the Soviet Union and the United States maintained a number of stations in the Arctic Ocean on floes such as Fletcher's Ice Island for res ...

North Pole-1 North Pole-1 () was the world's first crewed drifting ice station in the Arctic Ocean, primarily used for research. North Pole-1 was established on 21 May 1937 and officially opened on 6 June, some from the North Pole by the expedition into the ...

. The drag chute allowed airplanes to land safely on smaller

ice floes An ice floe () is a segment of floating ice Ice is water that is frozen into a solid state, typically forming at or below temperatures of 0 ° C, 32 ° F, or 273.15 K. It occurs naturally on Earth, on other planets, in Oort cloud obje ...

. Most parachutes were made of silk until World War II cut off supplies from Japan. After

Adeline Gray Adeline Maria Gray (born January 15, 1991) is an American Freestyle wrestling, freestyle wrestler who currently competes at Wrestling weight classes#Women's wrestling, 76 kilograms. She is a six-time world champion (2012 World Wrestling Champi ...

made the first jump using a nylon parachute in June 1942, the industry switched to nylon.

Types

Today's modern parachutes are classified into two categories – ascending and descending canopies. All ascending canopies refer to

paraglider Paragliding is the recreational and competitive adventure sport of flying paragliders: lightweight, free-flying, foot-launched Glider (aircraft), glider aircraft with no rigid primary structure. The pilot sits in a :wikt:harness, harness or in ...

s, 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 a controlled descent to collapse on impact with the ground.

Round

Round parachutes are purely a drag device (that is, unlike the ram-air types, they provide no

) and are used in military, emergency and cargo applications (e.g.

airdrop An airdrop is a type of airlift in which items including weapons, equipment, humanitarian aid or leaflets are delivered by military or civilian aircraft without their landing. Developed during World War II to resupply otherwise inaccessible tr ...

s). 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 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 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 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 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 Landing is the last part of a flight, where a flying animal, aircraft, or spacecraft returns to the ground. When the flying object returns to water, the process is called alighting, although it is commonly called "landing", "touchdown" or " spl ...

Cruciform

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 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 to . The T-11 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.

Pull-down apex

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 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 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 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 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.

Annular

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 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.

Rogallo wing

Sport parachuting has experimented with the

Rogallo wing The Rogallo wing is a flexible type of wing. In 1948, Francis Rogallo, a NASA engineer, and his wife Gertrude Rogallo, invented a self-inflating flexible wing they called the Parawing, also known after them as the "Rogallo Wing" and flexible wi ...

, 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

Ribbon and ring parachutes have similarities to annular designs. They are frequently designed to deploy at

supersonic Supersonic speed is the speed of an object that exceeds the speed of sound (Mach 1). For objects traveling in dry air of a temperature of 20 °C (68 °F) at sea level, this speed is approximately . Speeds greater than five times ...

speeds. A conventional parachute would instantly burst upon opening and be shredded at such speeds. Ribbon parachutes have 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 Kevlar (para-aramid) is a strong, heat-resistant synthetic fiber, related to other aramids such as Nomex and Technora. Developed by Stephanie Kwolek at DuPont in 1965, the high-strength material was first used commercially in the early 1970s as ...

are used on nuclear bombs, such as the B61 and B83.

Ram-air

The principle of the Ram-Air Multicell Airfoil 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 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."

Varieties

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 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 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 a lower

glide ratio In aerodynamics, the lift-to-drag ratio (or L/D ratio) is the lift generated by an aerodynamic body such as an aerofoil or aircraft, divided by the aerodynamic drag caused by moving through air. It describes the aerodynamic efficiency under give ...

. Wing loading of parachutes is measured similarly to that of aircraft, comparing exit weight to area of parachute fabric. Typical wing loading for students, accuracy competitors, and BASE jumpers is less than 5 kg per square meter – often 0.3 kilograms per square meter or less. Most student skydivers fly with wing loading below 5 kg per square meter. Most sport jumpers fly with wing loading between 5 and 7 kg per square meter, but many interested in performance landings exceed this wing loading. Professional canopy pilots compete with wing loading of 10 to over 15 kilograms per square meter. While ram-air parachutes with wing loading higher than 20 kilograms per square meter have been landed, this is strictly the realm of professional test jumpers. Smaller parachutes tend to fly faster for the same load, and ellipticals respond faster to control input. Therefore, small, elliptical designs are often chosen by experienced canopy pilots for the thrilling flying they provide. Flying a fast elliptical requires much more skill and experience. Fast ellipticals are also considerably more dangerous to land. With high-performance elliptical canopies, nuisance malfunctions can be much more serious than with a square design, and may quickly escalate into emergencies. Flying highly loaded, elliptical canopies is a major contributing factor in many skydiving accidents, although advanced training programs are helping to reduce this danger. High-speed, cross-braced parachutes, such as the Velocity, VX, XAOS, and Sensei, have given birth to a new branch of sport parachuting called "swooping." A race course is set up in the landing area for expert pilots to measure the distance they are able to fly past the tall entry gate. Current world records exceed . Aspect ratio is another way to measure ram-air parachutes. Aspect ratios of parachutes are measured the same way as aircraft wings, by comparing span with chord. Low aspect ratio parachutes, i.e., span 1.8 times the chord, are now limited to precision landing competitions. Popular precision landing parachutes include Jalbert (now NAA) Para-Foils and John Eiff's series of Challenger Classics. While low aspect ratio parachutes tend to be extremely stable, with gentle stall characteristics, they suffer from steep glide ratios and a small tolerance, or "sweet spot", for timing the landing flare. Because of their predictable opening characteristics, parachutes with a medium aspect ratio around 2.1 are widely used for reserves, BASE, and canopy formation competition. Most medium aspect ratio parachutes have seven cells. High aspect ratio parachutes have the flattest glide and the largest tolerance for timing the landing flare, but the least predictable openings. An aspect ratio of 2.7 is about the upper limit for parachutes. High aspect ratio canopies typically have nine or more cells. All reserve ram-air parachutes are of the square variety, because of the greater reliability, and the less-demanding handling characteristics.

Paragliders

Apco_Starlite_26_paraglider_launch_inflating_cells_by_pulling_up_top_risers

Paragliders - virtually all of which use ram-air canopies - are more akin to today's sport parachutes than, say, parachutes of the mid-1970s and earlier. Technically, they are ''ascending parachutes'', though that term is not used in the paragliding community, and they have the same basic airfoil design of today's 'square' or 'elliptical' sports

parachuting Parachuting and skydiving are methods of descending from a high point in an atmosphere to the ground or ocean surface with the aid of gravity, involving the control of speed during the descent using a parachute or multiple parachutes. For hu ...

canopy, but generally have more sectioned cells, higher aspect ratio and a lower profile. Cell count varies widely, typically from the high 20s to the 70s, while aspect ratio can be 8 or more, though aspect ratio (projected) for such a canopy might be down at 6 or so - both outrageously higher than a representative skydiver's parachute. The wing span is typically so great that it's far closer to a very elongated rectangle or ellipse than a ''square'' and that term is rarely used by paraglider pilots. Similarly, span might be ~15 m with span (projected) at 12 m. Canopies are still attached to the harness by suspension lines and (four or six) risers, but they use lockable

carabiner A carabiner or karabiner (), often shortened to biner or to crab, colloquially known as a (climbing) clip, is a specialized type of shackle, a metal loop with a spring-loaded gate used to quickly and reversibly connect components, most notabl ...

s as the final connection to the harness. Modern high-performance paragliders often have the cell openings closer to the bottom of the leading edge and the end cells might appear to be closed, both for aerodynamic streamlining (these apparently closed end cells are vented and inflated from the adjacent cells, which have venting in the cell walls). The main difference is in paragliders' usage, typically longer flights that can last all day and hundreds of kilometres in some cases. The harness is also quite different from a parachuting harness and can vary dramatically from ones for the beginner (which might be just a bench seat with nylon material and webbing to ensure the pilot is secure, no matter the position), to seatboardless ones for high altitude and cross-country flights (these are usually full-body cocoon- or hammock-like devices to include the outstretched legs - called ''speedbags'', ''aerocones'', etc. - to ensure aerodynamic efficiency and warmth). In many designs, there will be protection for the back and shoulder areas built-in, and support for a reserve canopy, water container, etc. Some even have windshields. Because paragliders are made for foot- or ski-launch, they aren't suitable for terminal velocity openings and there is no slider to slow down an opening (paraglider pilots typically start with an ''open'' but uninflated canopy). To launch a paraglider, one typically spreads out the canopy on the ground to closely approximate an open canopy with the suspension lines having little slack and less tangle - see more in

Paragliding Paragliding is the recreational and competitive adventure sport of flying paragliders: lightweight, free-flying, foot-launched glider aircraft with no rigid primary structure. The pilot sits in a harness or in a cocoon-like 'pod' suspended be ...

. Depending on the wind, the pilot has three basic options: 1) a running forward launch (typically in no wind or slight wind), 2) a standing launch (in ''ideal'' winds) and 3) a reverse launch (in higher winds). In ideal winds, the pilot pulls on the top risers to have the wind inflate the cells and simply eases the brakes down, much like an aircraft's flaps, and takes off. Or if there is no wind, the pilot runs or skis to make it inflate, typically at the edge of a cliff or hill. Once the canopy is above one's head, it's a gentle pull down on both toggles in ideal winds, a tow (say, behind a vehicle) on flat ground, a continued run down the hill, etc. Ground handling in a variety of winds is important and there are even canopies made strictly for that practice, to save on wear and tear of more expensive canopies designed for say, XC, competition or just recreational flying.

General characteristics

Main parachutes used by

skydiver Parachuting and skydiving are methods of descending from a high point in an atmosphere to the ground or ocean surface with the aid of gravity, involving the control of speed during the descent using a parachute or multiple parachutes. For hu ...

s today are designed to open softly. Overly rapid deployment was an early problem with ram-air designs. The primary innovation that slows the deployment of a ram-air canopy is the slider; a small rectangular piece of fabric with a

grommet Curtain grommets, used among others in shower curtains A grommet is a ring or edge strip inserted into a hole through thin material, typically a sheet of textile fabric, sheet metal or composite of carbon fiber, wood or honeycomb. Grommets are ...

near each corner. Four collections of lines go through the grommets to the risers (risers are strips of webbing joining the harness and the rigging lines of a parachute). During deployment, the slider slides down from the canopy to just above the risers. The slider is slowed by air resistance as it descends and reduces the rate at which the lines can spread. This reduces the speed at which the canopy can open and inflate. At the same time, the overall design of a parachute still has a significant influence on the deployment speed. Modern sport parachutes' deployment speeds vary considerably. Most modern parachutes open comfortably, but individual skydivers may prefer harsher deployment. The deployment process is inherently chaotic. Rapid deployments can still occur even with well-behaved canopies. On rare occasions, deployment can even be so rapid that the jumper suffers bruising, injury, or death. Reducing the amount of fabric decreases the air resistance. This can be done by making the slider smaller, inserting a mesh panel, or cutting a hole in the slider.

Deployment

Reserve parachutes usually have a ripcord deployment system, which was first designed by Theodore Moscicki, but most modern main parachutes used by sports parachutists use a form of hand-deployed

. A ripcord system pulls a closing pin (sometimes multiple pins), which releases a spring-loaded pilot chute, and opens the container; the pilot chute is then propelled into the air stream by its spring, then uses the force generated by passing air to extract a deployment bag containing the parachute canopy, to which it is attached via a bridle. A hand-deployed pilot chute, once thrown into the air stream, pulls a closing pin on the pilot chute bridle to open the container, then the same force extracts the deployment bag. There are variations on hand-deployed pilot chutes, but the system described is the more common throw-out system. Only the hand-deployed pilot chute may be collapsed automatically after deployment—by a kill line reducing the in-flight drag of the pilot chute on the main canopy. Reserves, on the other hand, do not retain their pilot chutes after deployment. The reserve deployment bag and pilot chute are not connected to the canopy in a reserve system. This is known as a free-bag configuration, and the components are sometimes not recovered after a reserve deployment. Occasionally, a pilot chute does not generate enough force either to pull the pin or to extract the bag. Causes may be that the pilot chute is caught in the turbulent wake of the jumper (the "burble"), the closing loop holding the pin is too tight, or the pilot chute is generating insufficient force. This effect is known as "pilot chute hesitation," and, if it does not clear, it can lead to a total malfunction, requiring reserve deployment. Paratroopers' main parachutes are usually deployed by static lines that release the parachute, yet retain the deployment bag that contains the parachute—without relying on a pilot chute for deployment. In this configuration, the deployment bag is known as a direct-bag system, in which the deployment is rapid, consistent, and reliable.

Safety

A parachute is carefully folded, or "packed" to ensure that it will open reliably. If a parachute is not packed properly it can result in a malfunction where the main parachute fails to deploy correctly or fully. In the United States and many developed countries, emergency and reserve parachutes are packed by " riggers" who must be trained and certified according to legal standards. Sport skydivers are always trained to pack their own primary "main" parachutes. Exact numbers are difficult to estimate because parachute design, maintenance, loading, packing technique and operator experience all have a significant impact on malfunction rates. Approximately one in a thousand sport main parachute openings malfunctions, requiring the use of the reserve parachute, although some skydivers have many thousands of jumps and never needed to use their reserve parachute. Reserve parachutes are packed and deployed somewhat differently. They are also designed more conservatively, favouring reliability over responsiveness and are built and tested to more exacting standards, making them more reliable than main parachutes. Regulated inspection intervals, coupled with significantly less use contributes to reliability as wear on some components can adversely affect reliability. The safety advantage of a reserve parachute comes from the small

probability Probability is a branch of mathematics and statistics concerning events and numerical descriptions of how likely they are to occur. The probability of an event is a number between 0 and 1; the larger the probability, the more likely an e ...

of a main malfunction being multiplied by the even smaller probability of a reserve malfunction. This yields an even smaller probability of a double malfunction, although there is also a small possibility of a malfunctioning main parachute not being able to be released and thus interfering with the reserve parachute. In the United States, the 2017 average fatality rate is recorded to be 1 in 133,571 jumps. Injuries and fatalities in sport skydiving are possible even under a fully functional main parachute, such as may occur if the skydiver makes an error in judgment while flying the canopy which results in a high-speed impact either with the ground or with a hazard on the ground, which might otherwise have been avoided, or results in collision with another skydiver under canopy.

Malfunctions

Below are listed the malfunctions specific to round parachutes: * A "Mae West" or "blown periphery" is a type of round parachute malfunction that contorts the shape of the canopy into the outward appearance of a large

brassiere A bra, short for brassiere or brassière (, ; ), is a type of form-fitting underwear that is primarily used to support and cover a woman's breasts. A typical bra consists of a chest band that wraps around the torso, supporting two breast cu ...

, named after the generous proportions of the late actress

Mae West Mary Jane "Mae" West (August 17, 1893 – November 22, 1980) was an American actress, singer, comedian, screenwriter, and playwright whose career spanned more than seven decades. Recognized as a prominent sex symbol of her time, she was known ...

. The column of nylon fabric, buffeted by the wind, rapidly heats from friction and opposite sides of the canopy can fuse together in a narrow region, removing any chance of it opening fully. *A "streamer" is the main chute which becomes entangled in its lines and fails to deploy, taking the shape of a paper streamer. The parachutist cuts it away to provide space and clean air for deploying the reserve. * An "inversion" occurs when one skirt of the canopy blows between the suspension lines on the opposite side of the parachute and then catches air. That portion then forms a secondary lobe with the canopy inverted. The secondary lobe grows until the canopy turns completely inside out. * A "

barber's pole A barber's pole is a type of Signage, sign used by barbers to signify the place or shop where they perform their craft. The trade sign is, by a tradition dating back to the Middle Ages, a staff or :wikt:pole, pole with a helix of colored Strip ...

" describes having a tangle of lines behind the jumper's head, who cuts away the main and opens his reserve.Scott Royce E. "Bo." ''Jump School at Fort Benning'' (originally published in a column called DUSTOFF in the July – August 1988 Issue of the ''Screaming Eagle Magazine'')
*The "

horseshoe A horseshoe is a product designed to protect a horse hoof from wear. Shoes are attached on the palmar surface (ground side) of the hooves, usually nailed through the insensitive hoof wall that is anatomically akin to the human toenail, altho ...

" is an out-of-sequence deployment, when the parachute lines and bag are released before the bag drogue and bridle. This can cause the lines to become tangled or a situation where the parachute drogue is not released from the container. *"Jumper-In-Tow" involves a static line that does not disconnect, resulting in a jumper being towed behind the aircraft.

Records

On August 16, 1960,

Joseph Kittinger Joseph William Kittinger II (July 27, 1928 – December 9, 2022) was an officer in the United States Air Force (USAF) who served from 1950 to 1978, and earned Command Pilot status before retiring with the rank of colonel. He held the world rec ...

, in the Excelsior III test jump, set the previous world record for the highest parachute jump. He jumped from a

balloon A balloon is a flexible membrane bag that can be inflated with a gas, such as helium, hydrogen, nitrous oxide, oxygen, or air. For special purposes, balloons can be filled with smoke, liquid water, granular media (e.g. sand, flour or rice), ...

at an altitude of (which was also a piloted balloon altitude record at the time). A small stabilizer chute deployed successfully, and Kittinger fell for 4 minutes and 36 seconds, also setting a still-standing world record for the longest parachute

, if falling with a stabilizer chute is counted as free-fall. At an altitude of , Kittinger opened his main chute and landed safely in the

New Mexico New Mexico is a state in the Southwestern United States, Southwestern region of the United States. It is one of the Mountain States of the southern Rocky Mountains, sharing the Four Corners region with Utah, Colorado, and Arizona. It also ...

desert. The whole descent took 13 minutes and 45 seconds. During the descent, Kittinger experienced temperatures as low as . In the free-fall stage, he reached a top speed of 614 mph (988 km/h or 274 m/s), or Mach 0.8. According to ''

Guinness World Records ''Guinness World Records'', known from its inception in 1955 until 1999 as ''The Guinness Book of Records'' and in previous United States editions as ''The Guinness Book of World Records'', is a British reference book published annually, list ...

'', Yevgeni Andreyev, a colonel in the

Soviet Air Force The Soviet Air Forces (, VVS SSSR; literally "Military Air Forces of the Union of Soviet Socialist Republics"; initialism VVS, sometimes referred to as the "Red Air Force") were one of the air forces of the Soviet Union. The other was the Sovie ...

, held the official FAI record for the longest free-fall parachute jump (without drogue chute) after falling for 24,500 m (80,380 ft) from an altitude of 25,457 m (83,523 ft) near the city of Saratov, Russia on November 1, 1962, until broken by Felix Baumgartner in 2012. Felix Baumgartner broke Joseph Kittinger's record on October 14, 2012, with a jump from an altitude of 127,852 feet (38,969.3 m) and reaching speeds up to 833.9 mph (1,342.0 km/h or 372.8 m/s), or nearly Mach 1.1. Kittinger was an advisor for Baumgartner's jump. Alan Eustace made a jump from the stratosphere on October 24, 2014, from an altitude of 135,889.108 feet (41,419 m). However, because Eustace's jump involved a

while Baumgartner's did not, their vertical speed and free fall distance records remain in different record categories.

Uses

In addition to the use of a parachute to slow the descent of a person or object, a

is used to aid horizontal deceleration of a land or air vehicle, including

and drag racers, provide stability, as to assist certain types of

light aircraft A light aircraft is an aircraft that has a Maximum Takeoff Weight, maximum gross takeoff weight of or less.Crane, Dale: ''Dictionary of Aeronautical Terms, third edition'', page 308. Aviation Supplies & Academics, 1997. Light aircraft are use ...

in distress, tandem free-fall; and as a pilot triggering deployment of a larger parachute. Parachutes are also used as

play Play most commonly refers to: * Play (activity), an activity done for enjoyment * Play (theatre), a work of drama Play may refer also to: Computers and technology * Google Play, a digital content service * Play Framework, a Java framework * P ...

equipment.YPO
Multi-Coloured Parachute with 8 Handles - 1.75m(Dia)
accessed 1 February 2023

References

Bibliography

External links

CSPA
The Canadian Sport Parachuting Association—The governing body for sport skydiving in Canada

– ''Scientific American'', June 7, 1913
Parachute History

Cross-chest buckle for parachute harness

Program Executive Office (PEO) Soldier

The 2nd FAI World Championships in Canopy Piloting – 2008 at Pretoria Skydiving Club South Africa

USPA
The United States Parachute Association—The governing body for sport skydiving in the U.S.
The Parachute History Collection at Linda Hall Library
(text-searchable PDFs)
"How Armies Hit the Silk"
June 1945, ''Popular Science'', James L. H. Peck – detailed article on parachutes
NuméroLa Revue aérienne / directeur Emile Mousset
��First female parachutist
Everard Calthrop Parachutist - Drop From Tower Bridge Part 1 (1918)
Film of a successful parachute jump from Tower Bridge during World War I. {{Authority control Airborne military equipment French inventions Italian inventions Military parachuting Parachuting Sports equipment