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Slingsby T67 Firefly
The Slingsby T67 Firefly, originally produced as the Fournier RF-6, is a two-seat aerobatic training aircraft, built by Slingsby Aviation in Kirkbymoorside, Yorkshire, England.〔(【引用サイトリンク】 url = http://www.marshall-slingsby.com/support.html )〕 It has been successfully used by the UK armed forces, where the Royal Air Force used 22 Slingsby T67M260s as their basic trainer between 1995 and 2010, with over 100,000 flight hours flown out of RAF Barkston Heath. The Slingsby has also been used by the Royal Hong Kong Auxiliary Air Force, the Royal Jordanian Air Force (still currently used), and other military training schools around the world for many years. Also, in December 2012, the National Flying Laboratory Centre at Cranfield University () in the UK acquired a T67M260 to supplement its Scottish Aviation Bulldog aerobatic trainer for MSc student flight experience and training.
The Slingsby is a very competent basic trainer and is still operated by many private individuals for standard-level aerobatics training. It was the HRH Prince Harry's basic trainer during his RAF flying officers course based at RAF Barkston Heath, including his first solo flight in Slingsby T67M260 registration G-BWXG in 2009. Tom Cassells () a British Aerobatic Champion regularly flies his Slingsby Firefly. However, in the mid-1990s, the aircraft became controversial in the United States after three fatal accidents during US Air Force training operations, although an Air Force investigation eventually attributed the accidents primarily to pilot error.
==Development==
The RF-6 was designed by René Fournier, and first flew on 12 March 1974. An all-wooden construction, it featured a high aspect-ratio wing echoing his earlier motorglider designs. Fournier set up his own factory at Nitray to manufacture the design, but after only around 40 had been built, the exercise proved financially unviable, and he was forced to close down production. A four-seat version was under development by Sportavia as the RF-6C, but this demonstrated serious stability problems that eventually led to an almost complete redesign as the Sportavia RS-180.
In 1981, Fournier sold the development rights of the RF-6B to Slingsby, which renamed it the T67. The earliest examples, the T67A, were virtually identical to the Fournier-built aircraft, but the design was soon revised to replace the wooden structure with one of composite material. Slingsby produced several versions developing the airframe and adding progressively larger engines. The Slingsby T67M, aimed at the military (hence "M") training market, was the first to include a constant-speed propellor and inverted fuel and oil systems. Over 250 aircraft have been built, mainly the T67M260 and closely related T-3A variants. Although operated successfully in the United Kingdom and Canada, the program would end in the United States because of a fatal crash following an engine failure. The type was meant to not only replace the Cessna T-41 introductory trainer, but also to meet the Enhanced Flight Screening Program (EFSP) requirements. The US Air Force has no replacement for this type, as it no longer provides training to nonfliers. The aircraft were eventually declared in excess of need in the early 2000s (decade) and disposed of by scrapping in 2006.
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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