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Research Vessels
Other Vessels
NOAA Small Boat Program*
R/V R5501
The 55' ANB is designed primarily to service aids to navigation within the inland waters, bays, sounds and harbors of the United States. It is capable and equipped to support multi-mission operations. The 55' ANB has a maximum lifting capacity of 3,600 pounds over the transom and 1,800 pounds elsewhere.
The Boat Engineering Branch of the USCG Engineering Logistics Center designed the 55' ANB. The Coast Guard Yard completed the detailed design and contracted the initial production 55' ANB.
Physical Characteristics
- “A” Class 55101-55112
- Hull Length 55’ 0”
- Length Overall 58’ 4” (w/ rub rails)
- Hull Beam 16’ 1 1/4” Beam Overall 16’ 9”
- Freeboard
- Bow 5’ 10”
- Amidships 5’ 0”
- Aft 4’ 9”
- Draft (normal operating condition) 5’ 2”
- Highest Points:
- Fixed 14’ 7”
- Unfixed 25’ 0”
Operating Parameters
- Crew Capacity 4
- Maximum Passengers 45
- Maximum Seas (transiting) 6’
- Maximum Seas (servicing aids) 3’
- Maximum Winds (knots) 30 KTS
- Range (NM) (at 10 knots) in Calm Water 900 NM
- Endurance 4 days Maximum Operating Distance from Shore 20 NM
- Top RPM and Speed 2300 RPM (21 KTS)
- Cruising RPM and Speed 1400 RPM (@12 KTS)
- Towing Capacity (displacement tons) 15 displacement tons
- Ice Breaking Capability Light surface ice up to 1”
AtoN Operating
- Cargo Capacity 4,000 LBS
- Maximum Hoisting Capacity
- (Buoy, Safe Working Load over stern): 3,600 LBS
- Maximum Sea State for Buoy
25 Foot Whalers
Boat Characteristics
- Length (on trailer, engines tiled up): 24’ 07” (37’ 0”)
- Beam (on trailer): 8’ 0” (9’ 0”)
- Draft (boat only, engines down): 1’ 04” (3’ 03”
- Maximum Speed: 50 Knots (32 Knots with full load)
- Engines: Evenrude 175hp FICHT
- Horsepower (each engine): 175
- Maximum horsepower: 450
- Fuel: 87 Octane unleaded gasoline
- Fuel capacity: 171.3 gallons
- VRO capacity: (2) 2.5 gallons
- Propellers: Two, 3-bladed stainless, 17” pitch
- Transom height: 30”
- Boat weight (empty hull): 3575lbs
- Boat weight (complete outfit): 5320lbs
- Total weight (persons, engines, gear) that boat will support: 9000lbs
- Underway crew endurance: 8 hours out of 24
- Operating sea conditions: Designed to operate in condition of Sea state 3 (3.5 to 5ft wave height). Fully capable when operating in less that 2ft seas and under 30 knots of wind. TPSB may operate in up to 6ft seas with a degraded mission capability.
- Operating wind conditions: Winds up to 30 knots
- Maximum personnel capacity: 12
Contact Information
Dennis Donahue (Mgr.)
Great Lakes Environmental Research Laboratory,
Lake Michigan Field Station
1431 Beach St. Muskegon, MI 49441
Tel: 231 759 5173 / 231 759 2314
Fax: 231 759-2414
Cell: 231 750-6399
E-Mail:
*Link leads off GLERL's website.