Cape-class Motor Lifeboat
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Canadian Coast Guard The Canadian Coast Guard (CCG; french: links=no, Garde côtière canadienne, GCC) is the coast guard of Canada. Formed in 1962, the coast guard is tasked with marine search and rescue (SAR), communication, navigation, and transportation issues ...
(CCG) maintains a fleet of Cape-class motor lifeboats based on a
motor lifeboat A rescue lifeboat is a boat rescue craft which is used to attend a vessel in distress, or its survivors, to rescue crew and passengers. It can be hand pulled, sail powered or powered by an engine. Lifeboats may be rigid, inflatable or rigid-inf ...
design A design is a plan or specification for the construction of an object or system or for the implementation of an activity or process or the result of that plan or specification in the form of a prototype, product, or process. The verb ''to design' ...
used by the
United States Coast Guard The United States Coast Guard (USCG) is the maritime security, search and rescue, and law enforcement service branch of the United States Armed Forces and one of the country's eight uniformed services. The service is a maritime, military, mu ...
. 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. 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 The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the European mainland, continental mainland. It comprises England, Scotlan ...
. In 2021 a contract was awarded to Ocean Pacific Marine to upgrade the class over a 7 year period.


Design

Cape-class motor lifeboats have displacements of , total lengths of and beams of . Constructed from marine-grade
aluminium Aluminium (aluminum in American and Canadian English) is a chemical element with the symbol Al and atomic number 13. Aluminium has a density lower than those of other common metals, at approximately one third that of steel. I ...
, ships have
draughts Checkers (American English), also known as draughts (; British English), is a group of strategy board games for two players which involve diagonal moves of uniform game pieces and mandatory captures by jumping over opponent pieces. Checkers ...
of . They contain two Caterpillar 3196
diesel engine The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-ca ...
s providing a combined . They have two four-blade propellers, and each ship's
complement A complement is something that completes something else. Complement may refer specifically to: The arts * Complement (music), an interval that, when added to another, spans an octave ** Aggregate complementation, the separation of pitch-clas ...
is four crew members and five passengers. The lifeboats have maximum speeds of and cruising speeds of . Cape-class lifeboats have fuel capacities of and ranges of when cruising. They are capable of operating at wind speeds of and wave heights of . They can tow ships with displacements of up to and can withstand winds and -high breaking waves. Communication options include
Raytheon Raytheon Technologies Corporation is an American multinational aerospace and defense conglomerate headquartered in Arlington, Virginia. It is one of the largest aerospace and defense manufacturers in the world by revenue and market capitali ...
152 HF-SSB and
Motorola Motorola, Inc. () was an American multinational telecommunications company based in Schaumburg, Illinois, United States. After having lost $4.3 billion from 2007 to 2009, the company split into two independent public companies, Motorol ...
Spectra 9000 VHF50W radios, and a Raytheon RAY 430 loudhailer system. 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 The Global Positioning System (GPS), originally Navstar GPS, is a satellite-based radionavigation system owned by the United States government and operated by the United States Space Force. It is one of the global navigation satellite sy ...
, a RAYPILOT 650
autopilot An autopilot is a system used to control the path of an aircraft, marine craft or spacecraft without requiring constant manual control by a human operator. Autopilots do not replace human operators. Instead, the autopilot assists the operator' ...
system, and either the R41X AN or SPS-69 radar systems.


Class list and distribution


References


External links


Canadian Coast Guard
Datasheet 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

{{Cape class lifeboat Auxiliary search and rescue ship classes