CCGS Samuel Risley
Samuel Risley in 2008
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| History | |
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 Canada
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| Name: | Samuel Risley |
| Namesake: | Samuel Risley, maritime inspector |
| Operator: | Canadian Coast Guard |
| Port of registry: | Ottawa, Ontario |
| Builder: | Vito Steel Boat & Barge Limited, Delta, British Columbia |
| Yard number: | 161 |
| Commissioned: | 4 April 1985 |
| In service: | 1985–present |
| Homeport: | CCG Base Parry Sound, Ontario (Central and Arctic Region) |
| Identification: |
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| Status: | in active service |
| General characteristics | |
| Type: | Samuel Risley-class icebreaker and buoy tender |
| Tonnage: | |
| Displacement: | 2,935 long tons (2,982 t) full load |
| Length: | 69.7 m (228 ft 8 in) |
| Beam: | 13.7 m (44 ft 11 in) |
| Draught: | 5.2 m (17 ft 1 in) |
| Ice class: | Arctic Class 2 |
| Speed: | 13 knots (24 km/h) |
| Range: | 16,700 nmi (30,900 km) at 12 kn (22 km/h) |
| Endurance: | 58 days |
| Complement: | 22 |
CCGS Samuel Risley is a Canadian Coast Guard icebreaker and buoy tender assigned to the Upper Great Lakes area (Central and Arctic Region). Lead ship of her class, the vessel is named after the 19th century maritime inspector and first head of Board of Steamship Inspectors Samuel Risley for Upper Canada and Ontario. Based in the Great Lakes, CCGS Samuel Risley is responsible for keeping an ice-free passage between Port Colborne, Ontario and Thunder Bay, Ontario.
The design of the vessel is based on offshore supply-tugboat designs, with strengthened chines. The vessel has a tall foredeck, and a long low quarterdeck, for carrying buoys, where a crane with a capability of lifting 15 long tons (15 t) is permanently mounted. The crane is motion stabilized.Samuel Risley is 69.7 metres (228 ft 8 in) long overall with a beam of 13.7 metres (44 ft 11 in). The icebreaker has a draught of 5.2 metres (17 ft 1 in). Samuel Risley has a gross tonnage (GT) of 1,967 and net tonnage (NT) of 649.5.
The ship is powered by four Wärtsilä Vasa 16V22 12-cylinder geared diesel-electric engines driving two controllable pitch propellers that create 6,595 kW (8,844 hp). This gives the vessel a maximum speed of 13 knots (24 km/h). The vessel has a capacity of 692 m3 (24,400 cu ft) of diesel fuel that gives Samuel Risley a range of 16,700 nautical miles (30,900 km) at 12 knots (22 km/h) and the vessel can stay at sea for up to 58 days. The ship is equipped with one General Motors 6–71 emergency generator.
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