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The Christavia Mk IV (Christ-in-Aviation) is a Canadian homebuilt aircraft that was designed by Ron Mason and produced by Elmwood Aviation of Frankford, Ontario (formerly in Belleville, Ontario). The aircraft is supplied in the form of plans for amateur construction.〔Purdy, Don: ''AeroCrafter - Homebuilt Aircraft Sourcebook, Fifth Edition'', page 150. BAI Communications, 15 July 1998. ISBN 0-9636409-4-1〕 ==Design and development== Designed for African missionary work the Mark IV is a development of the Christavia Mk I, with greater wingspan, a longer fuselage and two additional seats. The aircraft features a strut-braced high-wing, a four seat enclosed cabin with doors, fixed conventional landing gear and a single engine in tractor configuration.〔 The aircraft fuselage is made from welded 4130 steel tubing, while the wing is of all-wooden construction, with all surfaces covered with doped aircraft fabric. Later models have an aluminum wing spar. Its span wing employs a custom Mason airfoil, mounts flaps and has a wing area of . The wing is supported by "V" struts with jury struts. The standard engine used is the Lycoming O-320 powerplant.〔 The Christavia Mk IV has a typical empty weight of and a gross weight of , giving a useful load of . With full fuel of the payload for crew, passengers and baggage is .〔 Plans are marketed by Aircraft Spruce & Specialty Co as well as Mason's company, Elmwood Aviation. The designer estimates the construction time from the supplied plans as 2600 hours.〔〔 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「Elmwood Christavia Mk IV」の詳細全文を読む スポンサード リンク
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