saw this on the BBC news website
http://www.bbc.co.uk/news/technology-23726350Quote : -
The Oblique Icebreaker NB 508, made by the Arctic ship builder Arctech,
will become the first of its kind to travel sideways through the ice rather
than pound it head-on, cutting a channel as much as 30% wider than
conventional icebreakers can manage.Richard