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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, which carries passengers and a source of heat, in most cases an open flame caused by burning liquid propane. The heated air inside the envelope makes it buoyant, since it has a lower density than the colder air outside the envelope. As with all aircraft, hot air balloons cannot fly beyond the atmosphere. The envelope does not have to be sealed at the bottom, since the air inside the envelope is at about the same pressure as the surrounding air. In modern sport balloons the envelope is generally made from nylon fabric, and the inlet of the balloon is made from a fire-resistant material such as Nomex. Modern balloons have been made in many shapes, such as rocket ships and the shapes of various commercial products, though the traditional shape is used for most non-commercial and many commercial applications.
Jean Felix Piccard, also known as Jean Piccard, was a Swiss-born American chemist, engineer, professor and high-altitude balloonist. He invented clustered high-altitude balloons, and with his wife Jeannette, the plastic balloon. Piccard's inventions and co-inventions are used in balloon flight, aircraft and spacecraft.
The Gordon Bennett Cup is the world's oldest gas balloon race, and is "regarded as the premier event of world balloon racing" according to the Los Angeles Times. Referred to as the "Blue Ribbon" of aeronautics, the first race started from Paris, France, on September 30, 1906. The event was sponsored by James Gordon Bennett Jr., the millionaire sportsman and owner of the New York Herald newspaper. According to the organizers, the aim of the contest "is simple: to fly the furthest distance from the launch site." The contest ran from 1906 to 1938, interrupted from 1914 to 1919 by World War I and in 1931, but was suspended in 1939 when the hosts, Poland, were invaded at the start of World War II. The event was not resurrected until 1979, when American Tom Heinsheimer, an atmospheric physicist, gained permission from the holders to host the trophy. The competition was not officially reinstated by the Fédération Aéronautique Internationale (FAI) until 1983.
In aeronautics, a balloon is an unpowered aerostat, which remains aloft or floats due to its buoyancy. A balloon may be free, moving with the wind, or tethered to a fixed point. It is distinct from an airship, which is a powered aerostat that can propel itself through the air in a controlled manner.
A gas balloon is a balloon that rises and floats in the air because it is filled with a gas lighter than air. When not in flight, it is tethered to prevent it from flying away and is sealed at the bottom to prevent the escape of gas. A gas balloon may also be called a Charlière for its inventor, the Frenchman Jacques Charles. Today, familiar gas balloons include large blimps and small latex party balloons. For nearly 200 years, well into the 20th century, manned balloon flight utilized gas balloons before hot-air balloons became dominant. Without power, heat or fuel, untethered flights of gas balloons depended on the skill of the pilot. Gas balloons have greater lift for a given volume, so they do not need to be so large, and they can stay up for much longer than hot air balloons.
A solar balloon is a balloon that gains buoyancy when the air inside is heated by solar radiation, usually with the help of black or dark balloon material. The heated air inside the solar balloon expands and has lower density than the surrounding air. As such, a solar balloon is similar to a hot air balloon. Usage of solar balloons is predominantly in the toy market, although it has been proposed that they be used in the investigation of planet Mars, and some solar balloons are large enough for human flight. A vent at the top can be opened to release hot air for descent and deflation.
Henry Tracey Coxwell was an English aeronaut and writer about ballooning active over the British Isles and continental Europe in the mid-to late nineteenth century. His achievements included having established and led two military balloon companies in Cologne, Germany at the outbreak of the Franco-Prussian war in 1870, leading the first aerial trip in England for purposes of photography, piloting a British Association flight from Wolverhampton, England that achieved a record altitude with James Glaisher in 1862, reaching at least 29,000 ft (8,800 m), and perhaps as high as 35,000 to 37,000 ft, as well as founding The Balloon, or Aerostatic Magazine and collecting his experiences in an autobiography, My Life and Balloon Experiences. He was referred to as the foremost balloonist of the last half of the nineteenth century by the English-language periodical, Illustrated London News, in January 1900.
Cluster ballooning is an extreme sport and a form of ballooning where a harness attaches a balloonist to a cluster of helium-inflated rubber balloons.
Paul Edward Yost was the American inventor of the modern hot air balloon and is referred to as the "Father of the Modern Day Hot-Air Balloon." He worked for a high-altitude research division of General Mills in the early 1950s until he left to establish Raven Industries in 1956, along with several colleagues from General Mills.
Donald Louis Piccard was a Swiss-born American balloon pioneer, promoter, innovator, designer, builder, and pilot.
Hot air ballooning is the recreational and competitive adventure sport of flying hot air balloons. Attractive aspects of ballooning include the exceptional quiet, the lack of a feeling of movement, and the bird's-eye view. Since the balloon moves with the direction of the winds, the passengers feel absolutely no wind, except for brief periods during the flight when the balloon climbs or descends into air currents of different direction or speed. Hot air ballooning has been recognized by Fédération Aéronautique Internationale (FAI) as the safest air sport in aviation, and fatalities in hot air balloon accidents are rare, according to statistics from the National Transportation Safety Board (NTSB).
Balloons and kites were the first inventions used in aerial warfare and their primary role was reconnaissance. Balloons provided an reliable and stable means of elevating an observer high over the battlefield to obtain a birds-eye view of troop positions and movements. An early instrument of aerial intelligence collection, they were also useful for creating accurate battlefield maps, an important ingredient for battlefield success. Incendiary balloons also have a long history. The incendiary balloons carry hot air or something that can catch fire to destroy enemy territory. They could also hold small bombs for combat. The history of military ballooning dates back to the late 18th century, when the Montgolfier brothers, Joseph-Michel and Jacques-Étienne, first demonstrated the potential of hot-air balloons for military use. The first recorded military use of balloons was during the French Revolutionary Wars, when the French military used balloons to gather intelligence on the movements of the enemy. Balloons were also used during the American Civil War, where they were used for reconnaissance and communication. Balloons had a decline after several incidents in the interwar period.
A balloon carrier or balloon tender was a ship equipped with a balloon, usually tied to the ship by a rope or cable, and usually used for observation. During the second half of the 19th century and the early 20th century, these ships were built to have the furthest possible view of the surrounding waters. After several experiments, the type became formalized in the early 1900s, but was soon to be superseded by the development of seaplane carriers and regular aircraft carriers at the beginning of World War I.
Sophie Blanchard, commonly referred to as Madame Blanchard, was a French aeronaut and the wife of ballooning pioneer Jean-Pierre Blanchard. Blanchard was the first woman to work as a professional balloonist, and after her husband's death she continued ballooning, making more than 60 ascents. Known throughout Europe for her ballooning exploits, Blanchard entertained Napoleon Bonaparte, who promoted her to the role of "Aeronaut of the Official Festivals", replacing André-Jacques Garnerin. On the restoration of the monarchy in 1814 she performed for Louis XVIII, who named her "Official Aeronaut of the Restoration".
John Wise was a pioneer in the field of ballooning. He made over 400 flights during his lifetime and was responsible for several innovations in balloon design. His balloon, The Jupiter, carried 123 letters to make the first official airmail delivery run for the US Post Office in 1859.
The history of ballooning, both with hot air and gas, spans many centuries. It includes many firsts, including the first human flight, first flight across the English Channel, first flight in North America, and first aircraft related disaster.
Ward Tunte Van Orman was an American engineer, inventor and balloonist. A lifelong employee of Goodyear Tire and Rubber Company credited with invention of Goodyear's inflatable life raft and self-sealing fuel tank, Van Orman set an unprecedented record of winning five annual National Balloon Races, participating in ten and winning three International Gordon Bennett Races.
David N. Levin was an American balloonist. He is the only balloonist to have completed the "triple crown" by winning the World Gas Balloon Championship, the World Hot Air Ballooning Championships and the Gordon Bennett Cup. In 1992, Levin also became the first balloonist to win ballooning's four major events, having won the U.S. National Hot Air Balloon Championship along with the "triple crown".
Vera Simons (1920–2012) was an inventor, artist, and balloonist. She became known in the 1950s and 1960s as a leader in high altitude gas balloon development and exploration, belonging to a group of pioneers known as the "Pre-Astronauts."
Eleanor Vadala was an American chemist, materials engineer and balloonist. She became director of research and development at the Naval Air Development Center in Pennsylvania, where she helped to develop light synthetic materials for use in aircraft. One of her jobs was the testing of fabric in existing balloons to ensure they could be used safely.
References
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