USA HISTORY

Detailed explanation-1: -A spar is a pole of wood, metal or lightweight materials such as carbon fibre used in the rigging of a sailing vessel to carry or support its sail. These include yards, booms, and masts, which serve both to deploy sail and resist compressive and bending forces, as well as the bowsprit and spinnaker pole.

Detailed explanation-2: -A mast is a pole that rises vertically from a ship and supports the sails. Really big sailboats have more than one mast. A mast is also another name for flagpole. The mast has an important job-to support the sails, which allows the wind to propel the ship.

Detailed explanation-3: -The masts and forestays support all the sails. The ropes by which the yards, on square riggers, the booms of fore-and-aft sails, and sails, such as jibs, are manipulated for trimming to the wind and for making or shortening sail are known as the running rigging.

Detailed explanation-4: -Boom. A boom is a spar (pole), along the foot (bottom) of a fore and aft rigged sail that greatly improves control of the angle and shape of the sail. The primary action of the boom is to keep the foot of the sail flatter when the sail angle is away from the centreline of the boat.

Detailed explanation-5: -Sails may be attached to a mast, boom or other spar or may be attached to a wire that is suspended by a mast. They are typically raised by a line, called a halyard, and their angle with respect to the wind is usually controlled by a line, called a sheet.