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Fairchild 45-80
The Fairchild 45-80 Sekani (named for an indigenous people of Canada) was a Canadian twin-engined transport aircraft developed in Canada in the late 1930s. Although the 45-80 was the largest bush plane developed by Fairchild, its poor performance doomed the project, and nearly the company.〔
==Design and development==
Designed by Fairchild (Canada) in the hope of attracting orders from the Royal Canadian Air Force and Canadian Airways,the 45-80 was an ambitious project, being the largest design yet attempted.〔Milberry 1979, p. 110.〕 The Sekani was a large sesquiplane of conventional configuration, with the sets of wings joined to the top and bottom of the fuselage and braced by N-struts. The lower set of wings were little more than stubs; their bracing to the upper wings passed through the engine nacelles (mounted on the upper wings), and they carried the pontoon undercarriage beneath them. Following typical Fairchild construction, the fuselage and empennage were made of fabric-covered welded steel tubing while the main wings were a combination of spruce spars and stainless steel ribs, also fabric covered. The "stub" wings were of heavy steel construction. The retractable undercarriage (a first for a Canadian designed aircraft) also featured streamlined fairings when the aircraft was equipped with skis.〔Molson and Taylor 1982, p. 324–325.〕
Testing commenced in August 1937 and revealed a number of serious deficiencies in the design, including that the aircraft was overweight and impossible to control directionally when flying on only one engine as the ailerons caused severe drag tending to turn the aircraft in the opposite direction.〔Molson and Taylor 1982, p. 325.〕
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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