A salior
An armada . Another answer: A group of ships together for protection is called a convoy. An armada is specific to armed war ships preparing to attack.
You may be referring to the "trade winds".
dial the ships number prefaced with the ocean code for where they happen to be sailing.
may
A Floatilla
Ships would form a convoy in an attempt to reduce their vulnerability to enemy submarines.
You call them kilometres
what do you call a person that takes ships into and out of port
A fleet of ships.
A crew
barque