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41 foot Utility Boat, Large

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Name
  
41-foot Utility Boat

In service
  
1973–2014

Built
  
1973–1981

41-foot Utility Boat, Large

Builders
  
Coast Guard Yard, Curtis Bay, Maryland

Operators
  
United States Coast Guard

Completed
  
207 (CG-41300—CG-41507)

The USCG Utility Boat, or UTB, was a standard utility boat used by the United States Coast Guard for a variety of inshore missions. The 41 ft (12 m) UTB was designed to operate under moderate weather and sea conditions where its speed and maneuverability made it an ideal platform.

Contents

The boats were welded 5086 aluminum, with a molded fiberglass superstructure and twin Cummins diesel engines with conventional shafts and propellers. They were capable of light towing, and were originally fitted with demountable fire monitors. Typical boat crew was 3.

207 boats were constructed at the Coast Guard Yard in Baltimore, Maryland, from 1972 to 1981.

As of 2005 there were 172 operational boats. Beginning in 2008, these aging boats were retired and replaced with the Response Boat-Medium over a 6–10 year period. The last active boat, CG-41410, was taken out of service in Grand Haven, Michigan on 31 July 2014. The 45-foot Response Boat – Medium is the class's replacement.

Machinery characteristics

  • Engine details - (2) Cummins VT-903M, 318 hp @ 2600 rpm, 2:1 reduction gears
  • Electrical system - 24 volt DC & a 24V to 12V DC to DC converter
  • Propeller details - (2) 26" D X 28” P x 2" bore, 4-blade Ni-Al-bronze.
  • Performance

  • Speed, maximum @ sea state 0 - 26 knots (48 km/h)
  • Speed, cruise @ sea state 2 - 18 knots (33 km/h) @ 2000 rpm
  • Fuel capacity (Diesel) - 486.8 US gal (1,840 L)
  • Range at cruise, sea state 0 - 300 nm (560 km)
  • Other data

  • Cost: $235,000 (1979)
  • References

    41-foot Utility Boat, Large Wikipedia


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