Defender-class boat
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Template:Infobox ship imageTemplate:Infobox ship class overviewTemplate:Infobox ship characteristicsThe Defender-class boat, also called Response Boat–Small (RB-S) and Response Boat–Homeland Security (RB-HS), is a standard boat introduced by the United States Coast Guard in 2002. The boats serve a variety of missions, including search and rescue, port security and law enforcement duties and replaces a variety of smaller non-standard boats.[1]
The design length of the hull is Template:Convert and the boat is officially referred to as such. However, the overall length with engines mounted is approximately Template:Convert. Powered by twin Template:Convert outboard motors, they are capable of speeds in excess of Template:Convert and have a range of Template:Convert, depending on the class. The boat requires a minimum crew of two persons, but has a carrying capacity for ten persons. The boat is easily trailerable and can be transported by a C-130 Hercules aircraft or truck.[2]
Although similar in appearance to a rigid-hulled inflatable boat, the Defender is actually an aluminum-hulled vessel, equipped with a rigid foam-filled flotation collar. The first generation of boats were built by SAFE Boats International of Bremerton, Washington, a vendor of government and law enforcement boats.[3][4] The replacement second generation was ordered in 2011 from Metal Shark Boats.
Design
The Defender class utilizes a rigid deep-V hull constructed of marine grade aluminum. While similar in appearance to the sponson of a rigid-hulled inflatable boat the Defenders' collar is actually made from rigid polyethylene foam. The boat is powered by two Template:Convert outboard engines, usually Honda four-strokes though Mercury and Johnson engines have also been used. Tow bitts are fitted forward and aft which also serve as mounting points for M240B or M60 machine guns.[2]
Variants
A class
The Defender A class or Response Boat–Homeland Security (RB-HS) was the first version of the Defender class and entered service in 2002. Some A-class boats in service with the Maritime Security Response Team (MSRT) have gray collars instead of the more common orange.
B class
The Defender B class, also known as the Response Boat–Small (RB-S) is a further development of the A class. First entering service in 2003 it has a slightly longer cabin, additional spotter windows aft, shock mitigating cabin seats, a smaller Template:Convert fuel tank, and various other minor changes. It is the most common of the three classes.[1][2]
C class
The Defender C class, sometimes known as the Response Boat Small–Charlie, is a modification of the B class and was designed as a replacement for the aging Template:Convert Transportable Port Security Boats (TPSB) currently used by Port Security Units. The C class has a gray foam collar, a cabin climate control system, and an increased armament of one M2HB .50-caliber machine gun on a modified forward mount and two M240B machine guns on port and starboard mounts just aft of the cabin.
The first C-class boats were delivered to Port Security Unit 305 in May 2008 for testing and entered operational service at Naval Station Guantanamo Bay, Cuba in 2009.[5]
Service life and replacement
With the Defender-class boats nearing the end of their ten-year service life, the United States Coast Guard issued a request for proposal for replacement design for the Response Boat-Small. The request called for a Template:Convert boat, with weapon mounts, a minimum speed of Template:Convert, and a range of at least Template:Convert.[6]
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Contracts were awarded for two boats, one from SAFE Boats International and one from Metal Shark Aluminum Boats, for testing and on September 26, 2011 the Coast Guard awarded a contract to Metal Shark Boats for the production of 38 Response Boats-Small.[7] In November, Metal Shark was awarded a $192 million contract for up to 500 response boats—470 to replace the entirety of the Coast Guard's 2002-built fleet, 20 for the US Border Patrol, and 10 for the US Navy.[8]
Operators
- Template:Country data Antigua and Barbuda (coast guard)
- Template:Country data Bangladesh[9]
- Template:Coast guard[9]
- Template:Coast guard
- Template:Country data Canada Naval Security Team[10]
- Template:Country data Chile
- Template:Country data Colombia
- Template:Country data Djibouti[11]
- Template:Country data Iraq[12]
- Template:Naval
- Israel Police
- Template:Naval
- Template:Flagicon Liberian Coast Guard[13]Script error: No such module "Unsubst".
- Template:Country data Malta
- Template:Country data Mexico
- Template:Country data Nigeria[14]
- Template:Coast guard 4 units Acquired via US FMS Program. Additional units scheduled for delivery.[15]
- Template:Coast guard
- Template:Flagicon Togolese Armed Forces operates one[16]
- Template:Naval
- Template:Coast guard
- Template:Naval
- Virginia Marine Police
See also
References
External links
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- ↑ http://www.jtfgtmo.southcom.mil/wire/wire/WirePDF/v9/Issue%2049v9.pdfTemplate:Dead link The Wire Vol 9, Issue 49
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- ↑ http://www.liberianobserver.com/node/10592 US Equip AFL with 2 Boats
- ↑ Script error: No such module "citation/CS1".Ships of the Nigerian Navy
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