It was a steam ship, so no masts for sails.
masts are sails on yachts.
the Clipper had 3 or more masts
The word "masts" is a noun. It refers to the upright spars on a ship that support the sails.
If you mean the vertical poles to which sails are attached, these are called masts.
A schooner
If you mean the vertical poles to which sails are attached, these are called masts.
They sails are attached to the masts of the ship. The mast is a pole that runs straight up or angled up out of the deck of the ship.
A caravel is one of the ships Columbus sailed in that has 2-4 masts and lateen sails.
It depends on the weight of the shift, the direction and strength of the ocean currents, the direction and strength of the wind, and the size of the masts/sails.
It is believed that the ancient Egyptians built and sailed the first ships made from reeds around 4000 B.C. These boats actually had sails and masts that were made from reeds.
Masts, or see: http://wiki.answers.com/Q/What_are_ship_poles_calledfor a more indepth answer.