get a 500,000tonne lump of ice drifting at a knot make it collide with a static submarine what will it do?
GLUG GLUG GLUG
no im not saying dont surface im saying becareful where you surface make sure your in a nice spot so that pack ice doesnt hit you because it can damage you.
some pack ice has been known to wiegh more than a nimitz class carrier and i dont think a puney sub will last much in that.
surface by all means make sure its clear and you will be fine
if still in doubt read the under ice guide i wrote its on the downlaods page at
www.subguru.com