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The N.V. Vliegtuigbouw 013 Sagitta ((英語:Aerospace Arrow)) is a Dutch mid-wing, single-seat Standard Class glider that was designed by Piet Alsema and produced by N.V. Vliegtuigbouw.〔Said, Bob: ''1983 Sailplane Directory, Soaring Magazine'', page 96, Soaring Society of America November 1983. USPS 499-920〕 The aircraft is reported by different sources under a variety of different names and designations. Sources label it the ''Alsema Sagitta'', ''Vliegtuigbouw Sagitta'', ''N.V. Vliegtuigbouw 013 Sagitta'', ''Dutch Sagitta'', ''N.V. Vliegtuigbouw Sagitta 013'' and ''N.V. Vliegtuigbouw Sagitta-013''. The US type certificate erroneously lists it as the ''N.V. VLIEGTUIGBOUW Segitta (sic) 013'' and catalogs it in their database under ''Vilegtuigbouw (sic), N.V., 013''.〔〔〔〔 ==Design and development== The Sagitta was designed by Alsema between 1957-61 specifically for the then-new FAI Standard Class. Like a number of other early standard class gliders it was quickly surpassed in performance by newer fibreglass aircraft.〔〔 The Sagitta is built with a wooden structure. The fuselage is covered in wood, while the wings and tail surfaces are covered in doped aircraft fabric covering. The span wing features top and bottom air brakes and employs a NACA 63-618 airfoil at the wing root, changing to a NACA 4412 section at the wing tip. The controls are all automatically connected on assembly. The bubble canopy slides aft for cockpit access and can be locked open in several positions in flight. The landing gear is a fixed monowheel.〔〔 In the Netherlands the aircraft was certified for cloud flying and aerobatics, but its US certification does not include these authorizations. The type received its US type certificate on 2 August 1965.〔〔〔 Twenty Sagittas were built.〔〔 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「N.V. Vliegtuigbouw 013 Sagitta」の詳細全文を読む スポンサード リンク
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