I mean like a stance or something without grasping an object like a rope or other solid object to not sweep away. When I mean armed I mean something like a sword, spear, or other melee weapon.
The example that I found regarding armed fighting on ship is from another SE, but I can't read or get the context.
From the Royal Museums Greenwich Instructions for training a ships crew in the use of arms in attack and defence by Lieutenant William Pringle Green and another for unarmed from Savate/Chausson/French KickBoxing, but I don't get the context or the application to stay balanced while fighting on ship.
From what I get, it is more about disrupting the opponent's balance technique without context to counter enemy's attempt in disrupting the person's balance.
The image is from: History of Savate
If this is considered too broad then just focus on the armed technique or trick. I am more curious regarding armed fighting on a ship, minus knife fighting though.