Chilean icebreaker Contraalmirante Oscar Viel Toro
Contraalmirante Oscar Viel Toro along coast of Antarctica
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| History | |
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 Canada
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| Name: | Norman McLeod Rogers |
| Namesake: | Norman McLeod Rogers |
| Operator: | Canadian Coast Guard |
| Builder: | Vickers Armstrong, Montreal |
| Launched: | 25 May 1968 |
| In service: | October 1969 |
| Out of service: | 1993 |
| Identification: | IMO number: 6822137 |
| Fate: | sold to Chilean Navy |
 Chile
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| Name: | Contraalmirante Oscar Viel Toro |
| Namesake: | Counter Admiral Oscar Viel Toro |
| Operator: | Chilean Navy |
| Acquired: | 20 December 1994 |
| In service: | 14 January 1995 |
| Status: | Active |
| Notes: | acquired from Canadian Coast Guard 1994 |
| General characteristics (as built) | |
| Type: | Icebreaker and buoy tender |
| Tonnage: | |
| Displacement: | 6,320 long tons (6,420 t) |
| Length: | 294.9 ft (89.9 m) |
| Beam: | 62.5 ft (19.1 m) |
| Draught: | 20 ft (6.1 m) |
| Propulsion: |
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| Speed: | 15 knots (28 km/h) |
| Range: | 12,000 nmi (22,000 km) at 12 kn (22 km/h) |
| Complement: | 55 |
| Aircraft carried: | 1 helicopter |
| Aviation facilities: | Flight deck |
Contraalmirante Oscar Viel Toro is an icebreaker in service with the Chilean Navy since 1995. Originally in service with the Canadian Coast Guard as CCGS Norman McLeod Rogers, it was named for former MP and cabinet minister Norman McLeod Rogers (1894–1940). It is currently named for Counter Admiral Oscar Viel Toro (1837–1892), who was the commander of the Chilean naval forces from 1881–1883 and 1891.
Contraalmirante Oscar Viel Toro is 294.9 feet (89.9 m) long overall with a beam of 62.5 feet (19.1 m) and a draught of 20 feet (6.1 m). The ship has a fully loaded displacement of 6,320 long tons (6,420 t), gross register tonnage (GRT) of 4,179 register tons, net tonnage of 1,847 and deadweight tonnage (DWT) of 2,347 tons.
As built, the vessel was equipped with a CODAG system composed of four diesel engines and two gas turbines powering two electric motors driving two shafts. This created 12,000 shaft horsepower (8,900 kW) and gave the ship a maximum speed of 15 knots (28 km/h). It was the first application of the system in icebreakers in the world. In 1982, the gas turbines were replaced with diesels and the icebreaker's propulsion system is currently four Fairbanks-Morse 38D8-1/8 diesel engines (8,496 hp (6,335 kW) sustained) with four GE generators generating 4.8 megawatts (6,400 hp) and two Ruston RK3CZ diesel engines (7,250 hp (5,410 kW) sustained) with two GE generators generating 2.6 megawatts (3,500 hp) driving two shafts creating 12,000 hp total. The ship maintained the same speed after the alteration and has a range of 12,000 nautical miles (22,000 km) at 12 knots (22 km/h).
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