Cape-class motor lifeboat
CCGS Cape Sutil at Port Hardy, British Columbia. | |
Class overview | |
---|---|
Name: | 47' MLB |
Builders: | Textron Marine and Victoria Shipyards |
Operators: | Canadian Coast Guard |
Cost: | US $1,214,300 |
In service: | 1997–Present |
Planned: | 36 |
Completed: | 36 |
General characteristics | |
Displacement: | 18 t (20 short tons)[1] |
Length: | 14.6 m (47 ft 11 in)[1] |
Beam: | 4.27 m (14 ft 0 in)[1] |
Draught: | 1.37 m (4 ft 6 in)[1] |
Propulsion: | 2 x Caterpillar 3196 Engines Rated 450 hp @ 2100 rpm (373 usable imperial gallons) fuel capacity [1] |
Speed: | |
Range: | 200 nmi (370 km) cruising[1] |
Complement: | 4 crew, 5 passengers[1] |
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The Canadian Coast Guard maintains a fleet of 14.6 m (47 ft 11 in) Cape-class motor lifeboats[2] , based on a motor lifeboat design used by the United States Coast Guard. In September 2009 the CCG announced plans to add five new lifeboats, bringing the total number of Cape-class lifeboats to 36.
The vessels are staffed by a crew of four, two of whom are rescue specialists.[3][4][5] In spite of its name, the CCGS Cape Roger is a larger patrol vessel, not a Cape-class lifeboat. The CCG also maintains some larger motor lifeboats based on Arun-class lifeboats designed in the United Kingdom.
Design
Cape-class motor lifeboats have displacements of 20 short tons (18 t) and total lengths of 47 feet 11 inches (14.61 m) and beam lengths of 14 feet (4.3 m).[6] Constructed from marine-grade aluminium, ships have draught lengths of 4 feet 6 inches (1.37 m). They contains two Caterpillar 3196 diesel engines providing a combined 900 shaft horsepower. They have two 28 by 36 inches (710 mm × 910 mm) four-blade propellers, and each ship's complement is four crew members and five passengers.[6]
The lifeboats have maximum speeds of 25 knots (46 km/h; 29 mph) and cruising speeds of 22 knots (25 mph). Cape-class lifeboats have fuel capacities of 400 US gallons (1,500 l; 330 imp gal) and ranges of 200 nautical miles (370 km; 230 mi) when cruising.[6] They are capable of operating at wind speeds of 50 knots (93 km/h; 58 mph) and wave heights of 30 feet (9.1 m). They can tow ships with displacements of up to 150 tonnes (170 short tons) and can withstand 60 knots (110 km/h; 69 mph) winds and 20 feet (6.1 m)-high breaking waves.[6]
Communication options include Raytheon 152 HF-SSB and Motorola Spectra 9000 VHF50W radios, and a Raytheon RAY 430 loudhailer system.[6] The lifeboats also support the Simrad TD-L1550 VHF-FM radio direction finder. Raytheon provides a number of other electronic systems for the lifeboats, including the RAYCHART 620, the ST 30 heading indicator and ST 50 depth indicator, the NAV 398 global positioning system, a RAYPILOT 650 autopilot system, and either the R41X AN or SPS-69 radar systems.[6]
Class list and distribution
References
- 1 2 3 4 5 6 7 8 "Motor Life Boat 47-Foot MLB". United States Coast Guard. 25 August 2010. Archived from the original on 29 February 2012. Retrieved 2012-02-29.
- ↑ "New vessels ordered for Canadian Coast Guard". Marine Log. 2009-09-03. Archived from the original on 2009-09-12.
- ↑ "Vessels, Aircraft and Hovercraft: CCGC Cape Sutil". Canadian Coast Guard. 2007-11-07. Retrieved 2008-03-04.
- ↑ "CCG Cape Sutil". Canadian Coast Guard. Archived from the original on 2009-09-12.
- ↑ "COAST GUARD MOTOR LIFEBOAT CCGC SUTIL CHRISTENED TODAY IN PORT HARDY, BC". Department of Fisheries and Oceans. 1 August 2000. Archived from the original on 19 October 2003. Retrieved 2008-03-04.
- 1 2 3 4 5 6 "Motor Life Boat 47-Foot MLB: International Affairs (CG-DCO-I)". United States Coast Guard, Department of Homeland Security. 1 July 2015. Retrieved 19 August 2015.
- ↑ "CCG lifeboats". SARCentral. Archived from the original on 2010-01-05.
External links
- Canadian Coast GuardDatasheet on the 47 MLB
- US Coast Guard Datasheet on the 47 MLB
- USCG COMDTINST M16114.25B 47ft Motor lifeboat operator's handbook
- Textron Marine contractor for the USCG 47 MLB
- MetalCraft Marine contractor for the CCG 47 MLB
- military.com