of the ships that supply Antarctic bases are ice strengthened
rather than full blown ice breakers.
Double hull, with a gap between them, the gap
may be air or filled with water ballast. If the outer hull is
punctured the inner will hopefully not be.
Flat hull shape with a rounded rather than pointed
bow. This allows the front of the ship to drive forwards, rise
above the ice and then let the weight of the ship break the
Specially formulated hull polymer paints for
strength and also low friction when in contact with ice.
Special engine cooling arrangements so that
the inlet for water taken on board to cool the engine doesn't
get blocked with ice - likewise the water outlet.
No stabilizers or any other kind of hull protuberance
that might get ripped off by ice
Helicopter, for scientific work, but also for
spotting leads and open water in the ice to guide the ship.
Rudder and propeller protected by the shape
of the hull, so that ice moving backwards is less likely to
Thicker than normal steel, particularly at the
bow and at the level of the water-line
Reinforced "ice belt" that typically
extends about 1m above and below the water line. This is where
the hull has thicker steel and also has extra internal ribs
to help the stiffening. These are usually twice as many of these
ribs than in a comparable "normal" ship.
Powerful bow and stern thrusters to help maneuvering
in tight spaces such as pack ice.