It is called mast.
It is called the mast
The pole you are referring to is called the mast. If the boat only has one mast it is usually not in the middle of the boat but is normally found in the forward third of the boat.
Is called a mast
Do you mean the mast?
Masts, or see: http://wiki.answers.com/Q/What_are_ship_poles_calledfor a more indepth answer.
a pole on a sailboat is a mast
Mast
Mast (vertical, leading edge of sail), Boom (horizontal,bottom of sail), and a spinnaker pole if you use a spinnaker which is a sail type
The pole on a sailboat is called the mast.
The mast
A pole on a boat that holds spars or sails.
a pole is used on symmetrical boats, or a boat that has the spinnaker, or kite, out in front of it. An A-Symmetrical boat puts the spinnaker to the side. A-Symmetrical boats use a bowsprit to hold the sail out in front of the boat, but Symmetricals use a pole. it clips onto the mast of the boat, and the other ends holds the sail.