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374:-class tugs have an extendable, pivoting brow for use when personnel transfers are required. There are four state rooms, 2 singles for the chief engineer and the tug master, and two doubles for the other crew members. There is also a galley and mess area. The deck house is well insulated to reduce vibration and sound levels in the accommodations areas. The pilot house is windowed all around.
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class employs z-drive propulsion units manufactured by
Schottel. These SRP 1012 drive units can be turned through 360 degrees to provide thrust in any direction. The z-drive propulsion and the unique hull shape allow this class of tug to have roughly the same
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365:-class tugs are able to run stern-first using the JonRie InterTech hydraulic bow winch. This "tractor" mode of operation is accommodated with a stern profile that is higher than the bow profile.
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ratings ahead, 92,500 lb (42 t), as astern, 99,205 lb (45 t). The z-drive propulsion units are powered by 1,800 hp (1,342 kW)
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propulsion units. Experience with these and two other YTBs with improved winch and power equipment lead to the decision to build new tugs.
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271:(YT) that entered service in 2009. These tugs are designed to provide ship assist, barge and general towing, and escort services.
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An electric powered tug is being considered as a way for the Navy to reach its 2020 fossil fuel reduction goals.
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commercial tugboat design. The prime contractor for the first four class members was
Pacific Tugboat Services of
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This article about a specific ship or boat of the United States Armed Forces is a
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Port
Operations, delivers remarks during the activation ceremony for Navy tugboat
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572:"Navy Zs The Navy finally adds new Z-drives to its Puget Sound tug fleet"
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501:"New Navy tugs have the finesse, power for a wide range of duties"
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2 × Caterpillar 3512C at 1,800 hp (1,300 kW) each
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90 ft (27 m) (LOL) 82 ft (25 m) (LWL)
240:12.4 knots (23.0 km/h; 14.3 mph) (trial)
761:Auxiliary ship classes of the United States Navy
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341:Unlike previous classes of navy tugboats, the
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684:List of auxiliaries of the United States Navy
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528:"Navy puts first of new tug series to work"
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34:Rob Campbell, deputy program director of
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279:Before committing to a new tug design,
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307:, with improved power systems and
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183:581 long tons (590 t) (full)
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332:J.M. Martinac Shipbuilding Corp.
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59:J.M. Martinac Shipbuilding Corp.
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180:453 long tons (460 t) (lt)
771:United States naval ship stubs
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548:Buls, Bruce (1 January 2010).
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16:Class of US Navy yard tugboats
1:
499:Gauvin, Brian (3 July 2012).
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714:. You can help Knowledge by
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570:Buls, Bruce (1 June 2010).
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550:"On The Ways January 2010"
283:upgraded two of the older
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322:and derived from their
209:14 ft (4.3 m)
159:General characteristics
766:Valiant-class tugboats
328:Long Beach, California
318:class was designed by
201:38 ft (12 m)
281:Navy Region Northwest
36:Navy Region Northwest
505:Professional Mariner
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330:. The builder was
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530:. 16 February 2010
459:29 September 2011
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378:Ships in the class
352:Caterpillar Marine
336:Tacoma, Washington
81:United States Navy
63:Tacoma, Washington
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420:21 November 2009
320:Robert Allan Ltd.
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103:Succeeded by
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472:3 December 2011
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386:-class tugboats
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358:diesel engines.
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23:-class tugboats
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623:-class tugboats
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229:Model SRP 1012
214:Installed power
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574:. workboat.com
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552:. workboat.com
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261:is a class of
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170:-class Tugboat
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164:Class and type
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50:Class overview
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716:expanding it
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576:. Retrieved
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508:. Retrieved
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361:For towing,
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348:bollard pull
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175:Displacement
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130:2009–present
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324:Z-Tech 6000
87:Preceded by
755:Categories
578:2012-07-28
556:2012-07-28
534:2012-07-28
510:2012-07-28
479:References
245:Complement
222:Propulsion
127:In service
113:harbor tug
670:Menominee
466:Menominee
394:Launched
305:(YTB-826)
303:Washtucna
296:Menominee
143:Completed
122:2009–2012
69:Operators
663:Puyallup
656:Seminole
468:(YT-807)
455:(YT-806)
453:Puyallup
442:(YT-805)
440:Seminole
298:(YT-807)
291:tugboats
269:tugboats
227:Schottel
55:Builders
649:Defiant
642:Reliant
635:Valiant
621:Valiant
427:Defiant
414:Reliant
401:Valiant
384:Valiant
372:Valiant
363:Valiant
343:Valiant
316:Valiant
309:z-drive
263:US Navy
257:Valiant
231:z-drive
168:Valiant
135:Planned
108:Rainier
97:tugboat
41:Valiant
21:Valiant
354:3512C
288:-class
286:Natick
275:Design
190:Length
151:Active
110:-class
94:-class
92:Natick
78:
391:Name
259:class
237:Speed
206:Draft
119:Built
712:stub
314:The
300:and
266:yard
254:The
225:2 ×
198:Beam
356:V12
334:of
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519:^
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61:,
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729:v
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612:e
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513:.
248:6
154:6
146:6
138:6
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