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Atol is a two-seat kit amphibious aircraft with a wood composite structure. It is available in ultralight and light-sport aircraft (LSA) versions. Atol aircraft are produced by the Finnish company Atol Avion. == Development == The Atol was designed by Markku Koivurova and produced by Martekno Ky and later Atol Avion Ltd. The development of Atol began in the 1970s, inspired by the American Osprey II. The first versions of the design used the Ken Rand KR structure. Atol’s predecessors were larger and their structure recalled the traditional structure of a wooden aircraft.〔(Atol Avion Company Website )〕 The Atol amphibian flew for the first time in Rovaniemi, Finland on 23 August 1988, and the first test flight on water was in Norvajärvi, Rovaniemi on October 20, 1988. The first prototype was destroyed in a storm in the fall of 1989 but, with insurance indemnity and by using the first prototype’s front fuselage and wings, the second prototype was built. The second prototype made its first flight in Norvajärvi on October 12, 1990. The Finnish economy fell into a deep recession in the beginning of 1990s, which reflected in Martekno Finland Ltd’s operations. During its brief history, Martekno Finland Ltd delivered assembly kits for five airplanes. Of the three that have flown, two are still in good flying condition. In 1993 Atol Avion Ltd was established, and the company acquired Martekno Finland Ltd’s bankruptcy estate. In the time after the recess Atol has been developed continuously. The manufacturing technology of the structure and systems were refined, and the aircraft’s level of finishing was improved. The design of the engine cowling and the extension of the fuselage have been worked on for years and are being implemented currently in the third prototype. The first water taxi tests of the new LSA version were commenced in December 2014 on the Kemijoki River, Finland, on the Arctic Circle. This new version first flew on 9 April 2015.〔(【引用サイトリンク】title=Atol Amphib Completes First Flight )〕 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「ATOL 495」の詳細全文を読む スポンサード リンク
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