|View from the Akademik Shokalsky a day ago|
from the NYTimes.com
|The Russian icebreaker Krasin leading|
an American supply ship into McMurdo Station
from Wiki here.
Here's a bit more from Wiki: The icebreakers push straight into the ice, breaking up the ice, sometimes even driving its bow onto the ice surface so that the weight of the ship helps break up the ice. The design of the hull is such that the broken ice is then directed around or under the vessel. The design is also optimized to minimize damage to the propellers and other parts of the icebreaker itself. Icebreakers have variously been steam-powered, diesel -powered, and nuclear-powered. They have been designed to function on rivers (e.g., in Europe) as well as on the open ocean. The photo shown next is of a successful rescue.