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The gull wing is an aircraft wing configuration with a prominent bend in the wing inner section towards the wing root. Its name is derived from the seabirds which it resembles. It has been incorporated in aircraft for many reasons. ==Sailplanes== The gull wing was first seen on a glider when the Weltensegler flew in 1921. Its wings were externally braced and featured swept-back wingtips. After the aircraft broke up, killing its pilot, the design feature stayed out of popular use. The gull wing made a resurgence in 1930 with Alexander Lippisch's record-breaking ''Fafnir''. Lippisch used the configuration for its increased wingtip clearance and the ill-founded belief it improved stability in turns. However, studies have shown that normal gull wing configurations have significantly less severe and more easily recoverable stalls. Inverted gull wings show the opposite stall behaviour, but both normal and inverted gull wings impede lift/drag ratio and climb performance. The true success of the Fafnir's gull wing lay primarily in its aesthetic value; the gull wing would be a staple of the high-performance sailplanes of the time, until the 1950s. Notable gull wing sailplanes: * Bowlus Senior Albatross * DFS Habicht * DFS Kranich * DFS Reiher * Göppingen Gö 3 ''Minimoa'' * Lawrence Tech IV "Yankee Doodle" * Lippisch Fafnir * Ross RS-1 Zanonia * Schweyer Rhönsperber * Slingsby Kite * Weltensegler 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「gull wing」の詳細全文を読む スポンサード リンク
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