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The vaka is the main hull of a multihull vessel.〔 (【引用サイトリンク】title=A primer on proas ) 〕 ==Origin and use of the term== The term ''vaka'' comes from the pronunciation of the word ''waka'' and is derived from Polynesian, Malay and Micronesian languages for a 'canoe', 'ship' or 'boat.' Other parts of a traditional vaka can include the '' aka'' and '' ama'' (outrigger). A proa consists of a vaka, the main canoe-like hull; an ama, the outrigger; and akas, the poles connecting the ama to the vaka.〔 The trimaran uses the same terminology, with a center vaka and amas and akas on each side. 〔(【引用サイトリンク】title=The Tridarka Raider )〕 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「Vaka (sailing)」の詳細全文を読む スポンサード リンク
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