by Mr Link » February 8, 2022, 12:46 pm
Every ice breaker is unique and ice conditions constantly change, so its hard to compare one icebreaker to another. But here are capacities I have seen in various publications over the years. Many were taken from brochures that the ships handed out for public tours.
Minimum depth of solid plate ice that can be broken:
Pierre Radisson: 36" continuous @ 3 knots
"old" Mackinaw: 36" continuous, 60" backing and ramming
Samuel Risley: 33" continuous
"new" Mackinaw: 32" continuous @ 3 kts
Griffon: between 24" and 36" continuous, probably around 30"
140' tugs: 20" continuous, 36" backing and ramming
Juniper Class: 14" continuous @ 3 knots, 36" back and ram
Keeper Class: 9" continuous @ 3 knots
Every ice breaker is unique and ice conditions constantly change, so its hard to compare one icebreaker to another. But here are capacities I have seen in various publications over the years. Many were taken from brochures that the ships handed out for public tours.
Minimum depth of solid plate ice that can be broken:
Pierre Radisson: 36" continuous @ 3 knots
"old" Mackinaw: 36" continuous, 60" backing and ramming
Samuel Risley: 33" continuous
"new" Mackinaw: 32" continuous @ 3 kts
Griffon: between 24" and 36" continuous, probably around 30"
140' tugs: 20" continuous, 36" backing and ramming
Juniper Class: 14" continuous @ 3 knots, 36" back and ram
Keeper Class: 9" continuous @ 3 knots