Maritime vocabulary

Someone has an idea of what the abbreviation "BSN" means in the crew of a ship?

See the following link: http://mariners.records.nsw.gov.au/1875/12/006loc.htm

Clachrie Robt - BSN - age 30 - Dumphries - Crew member

It's for "Bosun", or "Botswain" (http://en.wikipedia.org/wiki/Boatswain), which, in French, means "bosco".

Hi there!

I wonder if some of you know the French equivalent of "cracking on" ?
See the explanation below, from the book of Susanne Störmer.

I have well understood the meaning of that expression, but as I intend to speak of it in a French article, I wonder if there is an equivalent alternative - except "naviguer toutes voiles dehors par gros temps" - a specific word ...

Thanks in advance.


Explanation of "cracking on":

"Cracking-on" was a way of pushing a ship forward - and it needed a very skilled Captain to carry out this method. [...] "Cracking-on" or to "crack it on" meant to let stand as many sails as the masts were just able to carry without breaking. By this, a high speed was reached [...] "Cracking-on" was a customary practice of sailing ship Captains - and it could become very nerve-racking for the mates when they had a very daring skipper.

Good-Bye, Good Luck - Susanne Störmer, p. 32/33