:hmm: I'm told, according to ancient chinese proverbs, that 13 is one of my lucky numbers.

Think positive - and good luck.
P.S. I checked a calender for 1941 - at least you did not sail on a Friday - never, EVER sail on a Friday (the 13th or otherwise). 00:01 hours Saturday morning will be fine to slip lines, but NEVER on a Friday - EVER!