Freezing In for an Arctic Christmas AboardDec 15, 2009
To detail all of this boat's features for an Arctic winter would take a book, but here are a few that I learned about during my hand-over day with Michael; a day we called Polaris University.
Although Polaris is not ice classed, the hull is still built super-strong from aluminum with thicker plate over fewer ribs and stringers than a boat like our Morgan's Cloud, which has comparatively thin plate over many ribs and stringers, a lighter technique but not as resistant to denting from ice pressure. Also, Polaris has a massive U-shaped beam welded to the inside of the hull right round the waterline to take ice stress and help stop the plate from denting.
The boat has not one, but THREE separate heating systems. More on that later.
Polaris has the best and most complete system for putting in shore-fasts I have ever seen. That will be the subject of another post.
The engine has a dry exhaust and is cooled by a heat exchanger inside the hull plating where it is safe from ice. As a result the engine will be in commission and ready to go all winter.
HUGE FUEL TANKS
A total diesel capacity of 3000 Liters ensures that the crew will be warm and toasty even if they do not break out of the ice until mid-June.
Michael will be reading this at home in Germany and I hope he will correct any details that I have wrong, in a comment.
The red drums in the photograph contain a shore survival kit in case the crew is forced to abandon. The blue bag is a small light inflatable that is both a backup to the larger tender and intended to assist in getting ashore during the freeze up when there will be an awkward period where the ice will obstruct the tender but be too thin to safely bear the weight of a person.
For more on Polaris, go to our home page and enter Polaris into the search box in the right sidebar. You will then see a Google search box restricted to our site showing the other articles we have written on the boat. You can also visit our Links page and go from there to Michael and Martina's web site (in German) while you are there, go to their blog and check out Michael's great photographs and from there to the builder's site.