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The Aeronautical Division, Signal Corps〔, Appendix 2〕 (1907–1914) was the first heavier-than-air military aviation organization in history and the progenitor of the United States Air Force. A component of the U.S. Army Signal Corps, the Aeronautical Division procured the first powered military aircraft in 1909, created schools to train its aviators, and initiated a rating system for pilot qualifications. It organized and deployed the first permanent American aviation unit, the 1st Aero Squadron, in 1913. The Aeronautical Division trained 51 officers and 2 enlisted men as pilots, and incurred 13 fatalities in air crashes.〔, Appendix 14〕 During this period, the Aeronautical Division had 29 factory-built aircraft in its inventory, built a 30th from spare parts, and leased a civilian airplane for a short period in 1911.〔〔S.C. No. 30, a Curtiss J, was to have been the 31st aircraft, but although ordered at the same time as S.C. No. 29, was not delivered until September.〕 Following statutory authorization of an Aviation Section in the Signal Corps by the United States Congress in 1914, the Aeronautical Division continued as the primary organizational component of the section until April 1918, when its inefficiency in mobilizing for World War I caused the War Department to replace it with an organization independent of the Signal Corps that eventually became the foundation of the Army's Air Service. ==Birth of an air arm== The United States Army Signal Corps became associated with aeronautics during the American Civil War, when Thaddeus S. C. Lowe was named chief of the Union Army Balloon Corps. In 1892, Major General Adolphus Greely, Chief Signal officer of the Army, formulated plans for a War Balloon detachment for the Signal Corps and authorized the purchase of a balloon from France, dubbed the ''General Myer'',〔The ''General Myer'' and Fort Myer, Virginia, were named for Colonel Albert J. Myer, Signal Officer of the Army of the Potomac during the American Civil War. Ironically, Myer snagged John Wise's balloon in trees trying to deliver it to the Bull Run battlefield, then in August 1863 rejected the balloon unit outright as costing more than it was worth. ()〕 based at Fort Riley in 1893 and Fort Logan in 1894. When the ''General Myer'' deteriorated, a second balloon, the ''Santiago'', was manufactured by members of the Signal Corps in 1897 using the ''General Myer'' as a model, and served in combat in Cuba in 1898.〔The ''Santiago'', after observing Spanish movements near El Caney on June 30, 1898, was placed within 650 yards of the Spanish trenches on San Juan Hill on July 1, where it was struck repeatedly by small arms fire and shrapnel. Badly damaged, it was not used again. (Greely, "Balloons in War", pp. 48–49)〕 In 1898–99, the War Department accepted the report of an aeronautically-minded investigating committee that included Alexander Graham Bell and invested $50,000 for the rights to a heavier-than-air flying machine being developed by Samuel Pierpont Langley, Secretary of the Smithsonian Institution. Although Langley's "Aerodrome" failed embarrassingly, the Army later resumed its interest in aviation as a result of the success of the Wright Brothers and entered into protracted negotiations for an airplane. All balloon school activities of the U.S. Army Signal Corps were transferred to Fort Omaha, Nebraska in 1905. In 1906, the commandant of the Signal School in Fort Leavenworth, Kansas, Major George O. Squier, studied aeronautical theory and lectured on the Wright flying machine. One of his instructors—Captain Billy Mitchell—was also a student of aviation and taught the use of reconnaissance balloons. Squier became executive officer to the Chief Signal Officer, Brigadier General James Allen, in July 1907, and immediately convinced Allen to create an aviation entity within the Signal Corps.〔 The Aeronautical Division, Signal Corps, consisting at its inception of one officer and two enlisted men, began operation on August 1, 1907. Captain Charles deForest Chandler was named to head the new division, with Corporal Edward Ward and Private First Class Joseph E. Barrett as his assistants.〔Correll, John T. (2007). "The First of the Force", ''AIR FORCE Magazine'' 90 (August): p. 46〕〔Ward was commissioned during World War I and received a balloonist license. Barrett, with a fear of hydrogen balloons, deserted soon after the establishment of the Division but served honorably later in the U.S. Navy. (Correll, "First of the Force", p. 51)〕 1st Lt. Frank P. Lahm, a cavalry officer, was also detailed to the division and joined it September 17, 1907. Both Chandler and Lahm were balloonists. Lahm had earned renown the year before when he won the inaugural Gordon Bennett Cup, an international balloon event, while Chandler was already a member of the Aero Club of America. He remained head of the division until 1908, then again from 1911 to 1913. During the interim, he was relieved by Lahm and from May 1910 to June 1911 (while Chandler attended the Signal School Course at Fort Leavenworth) by Capt. Arthur S. Cowan, a former infantry officer and non-aviator assigned to the Signal School. On December 23, 1907, the Signal Corps issued Specification No. 486 for a heavier-than-air flying machine and requested bids. A copy of the specification was sent to the Wrights on January 3, 1908.〔, Appendix 6〕 The following April 30 Lahm and 1st Lt. Thomas E. Selfridge〔Selfridge was a Field Artillery officer interested in aeronautics who had been working with Canadian inventor Alexander Graham Bell since the summer of 1907 after being turned down by the Wright Brothers〕 reported to New York City along with civilian balloonist Leo Stevens to familiarize 25 members of the First Company, Signal Corps, a unit of the 71st New York Infantry, in the use of hydrogen-filled kite balloons. The company was organized to provide the New York National Guard with an "aeronautical corps" for balloon observation, commanded by Major Oscar Erlandean.〔(Long Island Unit Gave Birth to “Citizen Airmen” ), Eric Durr, 2008, Division of Military and naval Affairs, ny.gov, retrieved 12-13-2014〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Aeronautical Division, U.S. Signal Corps」の詳細全文を読む スポンサード リンク
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