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Innovative tug designs continue to be introduced
| 题名： | Innovative tug designs continue to be introduced |
| 正文语种： | eng |
| 作者： | Bruce Buls |
| 摘要： | If you think YTB stands for You-Tube, you're reading the wrong magazine. Here in the workboat world, YTB means "yard tug boat" or "yard tug big." It's a designation that applies to Navy tugs whose mission is to maneuver ships and submarines in close quarters, tow barges, transfer personnel and fight fires. In the 1960s and '70s, a variety of U.S. shipyards built about 75 of the 109'x29' single-screw Natick-class YTBs with 2,000-hp engines. For the past 20 years or so, the Navy has been replacing these old yard tugs with commercially chartered vessels as well as a new class of Navy vessel to perform these same functions. Between 2009 and 2011, J.M. Martinac Shipbuilding, Tacoma, Wash., built six YT 802-class tugs for the Navy designed by Robert Allan Ltd. (RAL), Vancouver, British Columbia. |
| 出版年： | 2022 |
| 期刊名称： | Work Boat |
| 卷： | 79 |
| 期： | 6 |
| 页码： | 34-36 |
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