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The 47-foot MLB is the standard lifeboat of the United States Coast Guard (USCG). The 47′ MLB is the successor to the 44′ MLB. [5] At Station Chatham where the new 47-foot boat would draw too much to get over the bar, the 42-foot Near Shore Lifeboat was designed to replace the 44' MLB.
The 30' SRB was self-righting and self baling and designed with marked differences from the typical lifeboats used by the Coast Guard up until the early 1980s. The 30' SRB is not considered to be a Motor Lifeboat (MLB), but was generally used in a similar capacity.
These aluminum boats are 45 feet (14 m) in length, with twin diesel engines (total 825 hp), are self-righting, have a four crew, six passenger capacity, are equippable with two .50 caliber machine guns, have an excellent fendering system, can achieve a top speed of 42 knots (78 km/h), and are capable of towing a 100-ton vessel in eight-foot seas.
The 44-foot motor lifeboat was the standard workhorse of the United States Coast Guard (USCG) rescue boat fleet. [1] The 44′ MLB has been replaced by the 47′ MLB. [2] The boats are powered by twin diesel engines, each powering a separate propeller. [3] 44 footer in 2006
The Coast Guard bills the 52-foot MLBs as "virtually unsinkable", with self-righting and self-bailing capabilities and the ability to tow vessels as large as 750 long tons (760 t) in 30-foot (9.1 m) seas. [5] In comparison, the next-largest 47' MLB has a towing capacity of 150 long tons (150 t). [6]
Triumph was lost off the coast of Oregon in 1961. [1] Five of the six sailors aboard her lost their lives. Unlike the Triumph which was not self-righting, modern motor lifeboats are designed to be self-righting—they mount buoyancy chambers which will rapidly force the boats right-side-up, if they overturned. [3]
The Coast Guard responded at 11 p.m. Friday and took aboard an undisclosed number of migrants. ... Oct. 18, 2024, on this boat by the U.S. Coast Guard about 20 nautical miles off of Vero Beach ...
Another surf capable boat that the Coast Guard has used in recent years is the 30' surf rescue boat (SRB) introduced in 1983. [19] The 30' SRB was self-righting and self bailing and designed with marked differences from the typical lifeboats used by the Coast Guard up until the early 1980s.