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The Lamson PL-1 Quark was an American high-wing, single-seat, glider that was designed and constructed by Philip Lamson, first flying in early 1965.〔Rogers, Bennett: ''1974 Sailplane Directory, Soaring Magazine'', page 45. Soaring Society of America, August 1974. USPS 499-920〕 ==Design and development== Lamson designed and built the Quark in 1964 as a lighthearted experimental aircraft project to create a prone position-pilot glider. To this end the pilot was accommodated lying down with his head in the nose bubble.〔 The PL-1 is constructed from fiberglass, with the wings made from a balsa-fiberglass sandwich that was laid up in a female mold. The wing was originally of span, but this was quickly increased to with tip extensions and finally the aircraft received a new three-piece wing. The airfoil was an Irv Culver modification to the NACA 0012. The landing gear was a monowheel, with small wing tip skids.〔 Soaring Magazine described the aircraft as "purely a lark and a quirky lark at that". The designer described the performance as "somewhere between a Nimbus and a Rogallo".〔 Only one Quark was built and it was registered with the US Federal Aviation Administration in the ''Experimental - amateur-built'' category.〔〔 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「Lamson PL-1 Quark」の詳細全文を読む スポンサード リンク
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