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Gabardini monoplane
The Gabardini monoplane was a successful early monoplane constructed in Italy which made several notable flights, often carrying passengers, just before World War I. During the war, a number of lower-powered Gabardini monoplanes served as a training aircraft for the military.
==Design and development==
The Gabardini monoplane, then fitted with an 60 kW (80 hp) rotary engine and capable of carrying two passengers for 240 km (150 mi), gained attention as an effective if inelegant monoplane through a series of public appearances, flying at the beginning of a period dominated by multiplane aircraft.〔 Fitted with a Gnôme rotary, it proved a useful single-seat advanced trainer and was produced at the Cameri works from 1914 onwards. Other variants differed chiefly in engine size, though undercarriage details also varied; there were, for example, elementary trainers with Anzani engines and single-seaters with Le Rhônes.〔 Reported spans differ somewhat but the fuselage, empennage and wing area generally remained constant.〔〔 Contemporary sources〔〔〔〔 describe the aircraft simply as Gabardini monoplanes, with no type number, though it is known that there also existed a Gabardini 2 (or Ga.2), which was a monoplane trainer used at Cameri.〔
The Gabardini monoplane was designed with a steel tube structure, which was unusual. Its shoulder mounted monoplane wings were built around two tubular steel spars, with wooden ribs and canvas covering.〔〔 In plan view the low aspect ratio wings were barely straight, tapered to generously rounded tips. Roll control was by wing warping, with conventional control column input.〔 The wings were wire-braced to the fuselage from above as well as from below. The three upper wires on each side, one from the front spar and two from the rear at about mid-span, ran to the top of a three-legged pylon over the cockpit. The lower wires were attached to the frame that also carried the landing wheels and skids.〔
The fuselage was also steel tube-framed, reinforced with wood and covered with fabric. The forward part, with the engine, pylon and open cockpit, had four longerons and a rectangular cross-section deepest around the cockpit, producing a tubby-bellied look. Behind the cockpit, the lower longerons met to make a triangular rear cross-section, much like that of the earlier Etrich Taube's rear fuselage. A single piece rounded rudder with no fin was attached to the extreme tail. A semicircular tailplane, fitted with a pair of similarly shaped elevators, was placed well ahead of the rudder, giving it plenty of room for movement.〔〔 Under the forward fuselage, a pair of skids formed the undercarriage, often straight with turned up front ends but sometimes continuously curved, connected to the fuselage by three struts. Between them and connected with elastic was a tubular axle carrying a single wheel at each end. Some aircraft (seaplanes or ''idro''), with somewhat different dimensions, were fitted with twin floats in lieu of wheels.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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