CCGS John G. Diefenbaker
Conceptual rendering of CCGS John G. Diefenbaker released by the Canadian Coast Guard.
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| History | |
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 Canada
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| Name: | John G. Diefenbaker |
| Namesake: | John G. Diefenbaker |
| Owner: | Government of Canada |
| Operator: | Canadian Coast Guard |
| Builder: | Seaspan Marine Corporation |
| Cost: | C$720 million (2008 budget) C$1.3 billion (2013 budget) |
| In service: | 2017 (initial plan) 2020s (current estimate) |
| General characteristics (preliminary) | |
| Type: | Icebreaker |
| Displacement: | 23,500 tonnes |
| Length: | 150.1 m (492 ft) |
| Beam: | 28 m (92 ft) |
| Draught: | 10.5 m (34 ft) |
| Depth: | 13.5 m (44 ft) |
| Ice class: | Polar Class 2 Icebreaker(+) |
| Installed power: | Six diesel engines, 39,600 kW (combined) |
| Propulsion: | Diesel-electric; two shafts (2 × 11 MW) and one azimuth thruster (12 MW) |
| Speed: | 20 knots (37 km/h; 23 mph) (max) 12 knots (22 km/h; 14 mph) (cruise) 3 knots (5.6 km/h; 3.5 mph) (ice) |
| Range: | Over 26,200 nautical miles (48,500 km; 30,200 mi) in Sea State 3 |
| Endurance: | 25 days (full power) 270 days (logistical) |
| Crew: | 60 (core crew) 40 (program personnel) |
| Aircraft carried: | Two medium-lift helicopters |
| Aviation facilities: | Helipad and hangar |
CCGS John G. Diefenbaker is the name for a Canadian Coast Guard icebreaker that is expected to join the fleet in 2021–2022. She was initially expected to be in service by 2017. Her namesake, John G. Diefenbaker, was Canada's 13th prime minister. It was Diefenbaker's government that founded the Canadian Coast Guard in 1962.
The ship is to be constructed by Seaspan Marine Corporation as part of the National Shipbuilding Procurement Strategy.
Officially known as the Polar Class Icebreaker Project, the vessel's commissioned name was announced by Prime Minister Stephen Harper during a visit to Inuvik, Northwest Territories on 28 August 2008.
In early February 2011, STX Canada Marine was awarded the contract to design the new icebreaker for the Canadian Coast Guard. Although the majority of the design work will take place in the Vancouver offices of STX Canada, the design team will also include the Finnish engineering company Aker Arctic. The work should be complete by the end of 2013, after which the design will be provided to Seaspan/Vancouver Shipyards which will build the ship in Vancouver and deliver her to the Canadian Coast Guard in 2017. The ship will have a crew of approximately 100. She is estimated to be capable of carrying fuel and supplies to be self-sufficient for 270 days and be able of making constant progress through 2.5 metres (8 ft) of ice.
The C$720 million project was announced in the 27 February 2008 federal budget as a replacement for the nation's largest icebreaker and the flagship of the coast guard, the CCGS Louis S. St-Laurent.
The term "Polar Class" by the government and media is somewhat confusing as according to the International Association of Classification Societies, all vessels operating in sea ice must be assigned a Polar Class, with PC 1 being capable of "Year-round operation in all Polar waters" In addition, the United States Coast Guard refers to its large icebreakers as Polar-class icebreakers.
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