the masts
I believe you are referring to the shrouds and the stays that are attached to the mast(s) for stability. See the related link below:
A sail boat or yacht.
A steering wheel on a sail boat is still called a steering wheel.
They were called longships.
the pole that holds up the sail is called the mast
mess
When a ship, not a boat, leaves port it "sets sail."
A boat with one mast and one sail is called a cat boat. It is an old design with a very shallow draft designed to be used in areas of shallow tidal waters. Usually they a very wide for their length. a sail boat!
Cleats
A pole on a sailboat used to hold sails is called a "spar." Different types of spars include the mast, which supports the sails vertically, and booms, which extend horizontally to control the angle of the sail. Spars are essential for the rigging and overall functionality of the sailboat.
It's usually called the Mainsail, or as sailors pronounce it, the "mains'l". It is sometimes called the "sheet" too, though that is more generic. +++ The "sheet" is the line that controls the sail's angle across the boat.
A sail boat Also motorsailers and rafts