Seamanship is used specifically in contexts related to maritime activities or the navy.

Maritime Context

Seamanship covers all duties of sailors, not just the act of sailing, but also including navigation and ship maintenance.

Not Just Sailing

Seamanship can indicate the level of skill, from basic to excellent, depending on how a ship or boat is operated.

Skill Level

 cannons that were on the kita merchant and puts him in the hold for ballast Kidd sails the quedagh merchant to the Caribbean in search of supplies with great seamanship and great stealth he succeeds in getting back to Anguilla in