Claims to the first airplane flight

In judging claims of who was first to fly a winged aircraft, the generally accepted requirements are for sustained powered and controlled flight. The Wright brothers satisfied this claim and more because of their intensive study of aerodynamics, their laborious investment in prototype experiments, their custom engine which had a respectable power-to-weight ratio for the time, and especially for their ability to sustain and control the flight in three axes, even though their wing warping method would soon be surpassed by fixed ailerons. Their 1903 flight of 852 feet (260 m) over the ground involved a half mile (800 m) of moving air, which put them significantly beyond the previous powered hops. The Wright brothers' claim is sometimes challenged because their flight on December 17, 1903, was not officially witnessed, and because their airplane, the Wright Flyer, used a rail for takeoff. An editorial in the 2013 edition of ''Janes All the World's Aircraft'' said Gustave Whitehead made the first airplane flight in 1901, a claim asserted in a bill adopted by the Connecticut legislature in 2013. A claim of first flight by Clément Ader in France has been made. ==Claims==

Several aviators or their supporters have laid claim to the first manned flight in a powered aeroplane. Claims that have received significant attention include: • Clément Ader in the Avion III (1897) • Gustave Whitehead in his No's. 21 and 22 aeroplanes (1901–1903) • Samuel Pierpont Langley's Aerodrome A (1903) • Alberto Santos-Dumont in the 14-bis (1901–1906) Other notable claims include: • Karl Jatho, in Germany in his biplane (1903) • Richard Pearse, in New Zealand in his monoplane (1903–1904) • Trajan Vuia, in France (1906) • Jacob Ellehammer, in Denmark (1906) ==History==

Antecedents Some notable powered hops were made before the problem of powered flight was finally solved. In 1874, Félix du Temple built a steam-powered aeroplane which took off from a ramp with a sailor on board and remained airborne for a short distance. This has sometimes been claimed as the first powered flight in history, but the claim is generally rejected because takeoff was gravity-assisted and flight was not sustained. It is however credited as the first powered takeoff in history. Ten years later in 1884, the Russian Alexander Mozhaysky achieved similar success, launching his craft from a ramp and remaining airborne for . The claim that this was a sustained flight has not been taken seriously outside Russia. Few of the claims to powered flight were widely accepted, or even made, at the time the events took place. The Wrights suffered in their early years from a lack of general recognition, while neither Ader nor Langley made any claim in the years immediately following their work. Indeed, Langley died in 1906 without ever making any claim of success. The pioneer Octave Chanute promoted the Wrights' work, some of which he witnessed, in the United States and Europe. The brothers began to gain recognition in Britain, where Colonel John Edward Capper was taking charge of Army aeronautical work. On a visit to the U.S. in 1904, Capper befriended the Wrights and subsequently helped foster their early recognition. He also visited Langley, who openly discussed his failure with Capper. In 1906, the U.S. Army rejected a proposal from the Wrights on the basis that their machine's ability to fly had not been demonstrated. Thus, when Alberto Santos-Dumont made a brief flight that year in his 14-bis aeroplane, there was no acknowledged antecedent and he was acclaimed in France and elsewhere as the first to fly. Ader responded by claiming that he had flown in his Avion III back in 1897. Curtiss sought to prove Langley's machine, which failed piloted tests nine days before the Wrights' successful flight in 1903. The Aerodrome was removed from exhibit at the Smithsonian and prepared for flight at Keuka Lake, New York. Curtiss called the preparations "restoration", claiming that the only addition to the design was pontoons to support testing on the lake, but critics including patent attorney Griffith Brewer called them alterations of the original design. Curtiss flew the modified Aerodrome, hopping a few feet off the surface of the lake for 5 seconds at a time. The Smithsonian used this as the basis for a claim that the Aerodrome was the first plane "capable of flight". Orville, the surviving Wright brother, began a long and bitter public relations battle to force recognition of their claim. Unsuccessful, in 1928 he sent the historic Flyer for display in the British Science Museum in London. He prevailed in 1942, when the Smithsonian under its new secretary, Charles Abbot, admitted to Curtiss' modifications and withdrew its claim for the Aerodrome. As of the 21st century, it is generally accepted that the Wright brothers were the first to make sustained and controlled heavier-than-air powered flights. Many in Brazil regard Santos-Dumont as the first successful aviator. ==Ader==

Following his hop in the Éole, Clément Ader obtained funding from the French Ministry for War. He built two more machines: the Avion II and in 1897 the similar but larger Avion III. Neither was able to leave the ground at all. Several years later in 1906, following Blériot's first successful flights Ader claimed publicly that his Éole had flown for in 1891, and that the Avion III had flown for 1,000 ft on the second day of its trials. Ader's claim for the Avion III was refuted four years later in 1910, when the French Ministry for War finally published its report on his work. His claim for the Éole also collapsed through lack of credibility. ==Whitehead==

When Gustav Weisskopf immigrated to the United States, he changed his name to Gustave Whitehead. He began an extensive series of experiments with gliders, aero engines and motorized flying machines, which many claimed were successful powered aeroplane flights. Louis Darvarich, a friend of Whitehead, said they flew together in a steam-powered machine in 1899 and crashed into the side of a building in their path. The Bridgeport Herald newspaper reported that on August 14, 1901, Whitehead flew his No. 21 monoplane to a height of and could steer it a little by shifting his weight to the left or right. Beach and Whitehead disagreed and, then editor of the Scientific American, Beach denied that Whitehead ever flew. Whitehead's claims were not taken seriously until two journalists, Stella Randolph and Harvey Phillips, wrote an article in a 1935 edition of Popular Aviation journal. Harvard University economics professor John B. Crane responded with a rebuttal, published in National Aeronautic Magazine in December 1936. The next year Randolph expanded the article, together with additional research, into a book titled Lost Flights of Gustave Whitehead. Crane changed his mind in 1938 and suggested that a Congressional investigation should consider the claims. By 1945, Orville Wright was sufficiently concerned about the Whitehead claims that he issued his own rebuttal in US Air Services. O'Dwyer and Randolph claims Following a chance discovery in 1963, reserve U.S. Air Force major William O'Dwyer was asked to research Whitehead's claims. He became convinced that Whitehead did fly and contributed research material to a second book by Stella Randolph, The Story of Gustave Whitehead, Before the Wrights Flew, published in 1966. O'Dwyer and Randolph co-authored another book, History by Contract, published in 1978. The book criticised the Smithsonian Institution for its contracted obligation to credit only the 1903 Wright Flyer for the first powered controlled flight, claiming that it created a conflict of interest and had been kept secret. The Smithsonian defended itself vigorously. ''Jane's'' renews controversy On March 8, 2013, the aviation annual ''Jane's All the World's Aircraft'' published an editorial by Paul Jackson endorsing the Whitehead claim. Jackson's editorial drew heavily upon information provided by aviation researcher John Brown, whom he complimented for his work. Brown had begun researching Whitehead's aircraft while working as a contractor for the Smithsonian. ''Jane's'' corporate owner later distanced itself from the editorial, stating it contained the views of the editor, not the publisher. Brown analysed a vintage photograph of an early indoor aeronautical exhibition, claiming that an even earlier photograph visible on the wall showed the Whitehead No. 21 aircraft in powered flight. Jackson's editorial did not mention the claim, and two weeks after its publication he stated to the press that the image was not significant to the claim of Whitehead's flight, remarking, "And that entirely spurious 'Where's the photograph?' argument." Aviation historian Carroll Gray subsequently identified the photo seen on the wall "beyond any reasonable doubt" as a glider built and displayed in California by aviation pioneer John J. Montgomery. Responding to the renewed controversy, Tom Crouch, a senior curator at the Smithsonian's National Air and Space Museum, formally acknowledged the Wright contract, saying that it had never been a secret. He also stated; Scientific American published a rebuttal of the Whitehead claims written by its senior copy editor Daniel C. Schlenoff, who asserted, regarding the Bridgeport Herald report, that "The consensus on the article is that it was an interesting work of fiction." The Royal Aeronautical Society responded to the revived controversy with a "Statement Regarding The Gustave Whitehead Claims of Flight", rejecting the evidence supporting the claims, commenting that "All available evidence fails to support the claim that Gustave Whitehead made sustained, powered, controlled flights pre-dating those of the Wright brothers" and stating that "When it comes to the case of Gustave Whitehead, the decision must remain, not proven." ==Langley==

Samuel Pierpont Langley was secretary to the Smithsonian Institution from 1887 until the year of his death in 1906. During this period, and in due course supported by the United States War Department, he conducted aeronautical experiments, culminating in his manned Aerodrome A. Under Langley's instruction Charles M. Manly attempted to fly the craft from a catapult on the roof of a houseboat in 1903. Two attempts, on October 7 and December 8, both failed with Manly receiving a soaking each time. The Smithsonian's action triggered a decades-long feud with the surviving Wright brother, Orville. It was not until 1942 that the Smithsonian finally relented, publishing the Aerodrome modifications made by Curtiss and recanting misleading statements it had made about the 1914 tests. ==Wrights==

On December 17, 1903, a few miles south of Kitty Hawk, North Carolina, the Wright brothers launched their aeroplane from a dolly running along a short rail, which was laid on level ground. Taking turns, Orville and Wilbur made four brief flights at an altitude of about ten feet each time. The flight paths were all essentially straight; turns were not attempted. Each flight ended in a bumpy and unintended "landing" on the undercarriage skids or runners, as the craft did not have wheels. The last flight, by Wilbur, was in 59 seconds, much longer than each of the three previous flights of 120, 175 and 200 feet. The Flyer moved forward under its own engine power and was not assisted by catapult, a device the brothers did use during flight tests in the next two years and at public demonstrations in the U.S. and Europe in 1908–1909. A headwind averaging about 20 mph gave the machine sufficient airspeed to become airborne; its speed over the ground was less than 10 mph. Photographs were taken of the machine in flight. The Wrights kept detailed logs and diaries about their work. Their correspondence with Octave Chanute provides a virtual history of their efforts to invent a flying machine. They also documented their work in photographs, although they did not make public any photos of their powered flights until 1908. Their written records also were not made available to the public at the time, though they were published in 1953 after the Wright estate donated them to the U.S. Library of Congress. The Wrights' claim to a historic first flight was largely accepted by U.S. newspapers but inaccurately reported initially. In January 1904 they issued a statement to newspapers accurately describing the flights. After an announced public demonstration in May 1904 in Dayton, the Wrights made no further effort to publicize their work, and were advised by their patent attorney to keep details of their machine confidential. In 1905 a few dozen people witnessed flights by the Wright Flyer III. Pioneers such as Octave Chanute and the British Army officer Lt. Col. John Capper were among those who believed the Wrights' public and private statements about their flights. The Smithsonian feud Following the Curtiss experiments with the Langley Aerodrome in 1914, surviving Wright brother Orville began a long and bitter campaign against the Smithsonian to gain recognition. His disgust reached such a peak in 1928 that he sent the historic Flyer for display in the British Science Museum in London. It was not until 1942 that the Smithsonian finally relented, at last retracting its claims for Langley and acknowledging the Wrights' place in history. Orville died on January 30, 1948. The Flyer – delayed by the war and an arrangement for a copy to be made – was returned to its native America and put on display in the Smithsonian. A clause in the contract required the Smithsonian to claim primacy for the Wrights, at risk of losing their newly acquired prize exhibit. The Smithsonian has honoured its contract ever since and continues to support the Wrights' claim. ==Santos-Dumont==

'' seen from the front, before it was fitted with ailerons Alberto Santos-Dumont was a Brazilian aviation pioneer of French ancestry. Having immigrated to France for studies, he made his aeronautical name in that country with airships before turning to heavier-than-air flight. On 23 October 1906 he flew his 14-bis biplane for a distance of at a height of about five meters or less (15 ft). The flight was officially observed and verified by the Aéro-Club (later renamed the Aéro-Club de France). This won Santos-Dumont the Deutsch-Archdeacon Prize for the first officially-observed flight of more than 25 meters. Aviation historians generally recognise it as the first powered flight in Europe. Then on 12 November a flight of 22.2 seconds carried the 14-bis some , earning the Aéro-Club prize of 1,500 francs for the first flight of more than 100 m. This flight was also observed by the newly formed Fédération Aéronautique Internationale (FAI) and became the first record in their log book. The lateral control system comprised ailerons mounted between the wings and attached to a harness worn by the pilot, who was intended to correct any rolling movement by leaning in the opposite direction. At that time the Wrights' claim had not yet been accepted in Europe and was questioned in America by the authoritative Scientific American. Thus, Santos-Dumont was credited by many with the first powered flight. ==Other claims==

In 1894 Hiram Maxim tested a flying machine running on a track and held down by safety rails because it lacked adequate flight control. The machine lifted off the track and met the safety rails and this is sometimes claimed as a flight. Maxim himself never made such a claim. He did not claim the feat himself and gave ambiguous information about the chronology of his work. Biographer Geoffrey Rodliffe wrote, "no responsible researcher has ever claimed that he achieved fully controlled flight before the Wright brothers, or indeed at any time". Jatho Karl Jatho of Germany is generally credited with making powered airborne hops in Hanover between August and November 1903. He claimed a hop of about high on August 18, 1903, and several more hops or short flights by November 1903 for distances up to at height. His aircraft made takeoffs from level ground. In Germany some enthusiasts credit him with making the first airplane flight. Vuia Traian Vuia is credited with a powered hop of on March 18, 1906, and he claimed additional powered takeoffs in August. His design—a monoplane with a tractor propeller—is recognized as first to show that a heavier-than-air machine could take off on wheels. Romanian sources give him credit as first to take off and fly using his machine's "own self provided energy" and no "external support"—references to not using a rail or catapult, as the Wright brothers had done. Santos-Dumont was part of the audience at the March 1906 event. Ellehammer Jacob Ellehammer made a tethered powered hop of about on 12 September 1906. This has been claimed as a flight. Ellehammer's attempt was not officially observed, whereas Santos-Dumont's, only a few weeks later, was observed and has been given primacy. ==See also==