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A Thames skiff is a traditional River Thames wooden rowing boat used for the activity of skiffing. These boats evolved from Thames wherries in the Victorian era to meet a passion for river exploration and leisure outings on the water. ==Construction== The Thames skiff owes its origins to the viking boat building method of over-lapping timber planking known as clinker construction. Many of the terms used for parts of the skiff are of Scandinavian origin – “tholes”, “thwarts”, and “sax”. Planks on either side of a wooden keel are laid down following the outline of a sham (temporary pattern) placed across the keel. The planks are nailed in place and then a strengthening framework of ribs is added. Oars (or blades) are held in place by wooden thole pins at the side of the boat rather than rowlocks or outriggers. The thole pins are designed to give way if too much pressure is put on them, thus protecting the boat itself from damage. The thwart, or seat, is fixed rather than sliding as in modern boats. The sax runs round the top of the boat to strengthen and protect it.〔Eric McKee ''Working Boats of Britain'' Conway Maritime Press, 1983, ISBN 0-85177-277-3 (Includes on p. 172 the lines and offsets for a 24ft Double Thames Skiff by W.A.B. Hobbs of Henley-on Thames, England.)〕 Blades are made of wood with leather collars. Skiffs usually provide for one or two scullers but because they have been built to individual customer's specifications, there can be a wide variety of designs. There are skiffs with three or four rowing positions. Skiffs with more than one sculler have a seat for a coxswain who steers the boat by ropes attached to a rudder. Single scullers usually steer themselves, but some single skiffs allow for a cox/passenger as well. Some skiffs also provide for a sail to be used. Skiffs following the traditional Thames design are to be found in The Netherlands and Argentina, although Argentinian skiffs usually have outriggers instead of tholes. 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「Thames skiff」の詳細全文を読む スポンサード リンク
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