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A crew boat is a vessel specialized in the transport of offshore support personnel, deck cargo, and below-deck cargo such as fuel and potable water to and from offshore installations such as oil platforms, drilling rigs, drill and dive ships or wind farms.〔(【引用サイトリンク】title=Rules for Classification and Construction Ship Technonlogy: Offshore Service Vessels )〕 Crew boats also are known as fast support vessels or fast supply vessels. Crew boats range in size from small, 30-60-ft. vessels working on bays, sounds and inland waterways to 200-ft. vessels that work as much as 200 miles offshore. Crew boats typically are constructed of aluminum and offshore vessels are most often powered by four-six turbo-charged diesel engines and propelled by conventional ship's screws or water jets.〔(【引用サイトリンク】title=Crew Boat Market Report )〕 In the United States, crew boats may carry any number of passengers up to the maximum noted on the vessel's U.S. Coast Guard Certificate of Inspection. For most offshore crew boats, the maximum number of passengers, accommodated in airline-style seats, is between 50 and 100.〔(【引用サイトリンク】title=Crew Boat Market Report )〕 Crew boats typically are crewed at any given time by two licensed captains who each stand 12-hour watches, a deckhand or ordinary seaman and an unlicensed engineer who also is responsible for some deck duties during his or her watch. Crew members live aboard the vessel during their assigned rotations of duty (14-,21- and 28-day rotations are common in the United States), called "hitches" in the marine transportation industry.〔(【引用サイトリンク】title=Weekends and Evenings )〕 Offshore crew boats are equipped with full galleys, dining areas, heads with showers and staterooms for the crew. Overnight accommodations for passengers usually are not provided aboard crew boats.〔(【引用サイトリンク】title=Crew Boat Market Report )〕 Notable crew boats ''Ms. Netty'', a 225-ft. crew boat delivered to Gulf Offshore Logistics by builder Gulf Craft in 2012 is reportedly the world's largest monohull crew boat. Ms. Netty boasts 4,380 sq. ft. of clear deck space and can carry 66,300 US gallons of water and 77,204 U.S. gal. of transferrable fuel, as well as 74 passengers. Ms. Netty boasts a top speed of 33 kts.〔(【引用サイトリンク】title=225’ x 36’ Ms. Netty )〕 ''Seacor Cheetah'', a 185-ft. catamaran was delivered by Gulf Craft to Seacor Holdings, Inc., in March 2008. This crew boat offers a top speed in excess of 40 kts. and can carry up to 150 passengers, as well as 150 long tons of deck cargo.〔(【引用サイトリンク】title=Seacor Cheetah – Crew Ship )〕 ==References== 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「Crew boat」の詳細全文を読む スポンサード リンク
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