Nowadays mainly SWR, they are called 'stays'
the mast and some ropes The sail is attached to the mast, which is in turn supported by stays (lines running from the mast fore and aft to the hull) and shrouds (lines running from the mast to the sides of the hull).
Stays support the mast on a sailing boat running from the mast forward and aft. Shrouds also support the mast and run from the mast to the sides of the boat.
Bearing in mind that "A squared plus b squared equals c squared", 18 feet.
Boom Mast Sail Mast extension mast foot universal joint (uj) board fin daggerboard (optional) harness and harness lines (optional) and also various ropes including uphaul
A mast.
Tabernacle
A heavy frame with a lifting mast and forks in front
Mast .
Halyard, mast and boom (or yardarm) support the sails.
The halyards, these ropes are used to haul sails up. When sails are down they are left tied tight from the top of the mast down towards the foot. The wind causes them to vibrate and hit the mast thus causing the sound.
An upright pole on a ship to support sails or antennae.
A galleon pole is commonly referred to as a "spar" or a "mast." It is a long, slender pole used on ships to support sails or rigging.