The Navy considers all vessels ships; however, submarines are historically referred to as boats due to the nature of the first submarines. A boat in Naval terminology is a vessel that is launched or tended from a larger ship. The earliest submarines required support vessels to maintain and launch them, hence they were termed boats.
The term "boat" goes back to the earliest days of submarine history, when submarines were literally launched from tenders (e.g., the Turtle). A 'boat" is launched from a ship - therefore, the earliest submarines were termed "boats" since they were launched and retrieved from ships.
Today, though only DSRV's and ROV's require a support vessel for operations, independent submarines are still referred to as boats not only due to the historical term, but the fact that they still require support from a Submarine Tender while in homeport for repairs and maintenance the crew cannot perform.
As Naval history and submarine technology progressed to the point where they became independent vessels unto themselves, the traditional name stuck, though the Navy itself doesn't make a distinction - a ship is ship even if it's a black sewer pipe with a nuclear reactor that travels underwater. It's not just the tradition though - all submariners are keen on distinguishing themselves from skimmers (surface ship types), and using "boat" rather than ship is one way of doing that.
Another part of that tradition is the business founded to create famed submarine builder John Holland's submarine USS Holland (SS-1), which still exists today, which has had a large part in creating submarine history as we know it - the Electric Boat Division of General Dynamics Corp., in Groton, CT.
Submariners refer to submarines as "boats" or simply as submarines.
As a former submariner, I do not refer to them as "ships" at all, only boats or submarines. There is an old saying in the submarine community:
"There are only two types of ships: submarines, and targets!"
Ship,boat,life boat,submarine and motor boat
Ship,boat,life boat,submarine and motor boat
wierd question. Do you mean The British Navy have 20 ships or we will ship your goods tomorrow either way its ship. DO NOT call a submarine a ship as the commander will sink you, its a boat. DO NOT call a ship a boat or the captain will sink you. Where the border between boat and ship is for someone else to answer
A submarine is a ship that can travel underwater.
the U boat 'is' the German word for submarine. western nations just used submarine. U boat is short for Unterwasserboot, which translates as undersea boat or under water boat or submarine.
submarine.
A U-boat was a submarine used by Germany in World War 1 and World War 2.
No, a U-boat is a submarine. A torpedo boat is the boat that destroys the submarine.
A submarine is an undersea boat, or submersible.
Not in any specific order:Paddle BoatKayaksCanoesSpeed BoatsPontoonsCruise ShipsBattle ShipsFloating RaftsHover CraftsJet Skiis
a ship floats on the water and a submarine can go underwater and on top of the water
A submarine has two main mechanisms that allow it to sink and return to the surface. The submarine has dive tanks that can be filled with water to make the ship's weight the same as the water it displaces, or a little more. This causes the boat to sink. Air can be blown into those tanks to reduce the weight of the boat and it rises to the surface. The second system uses the ship's propulsion and diving planes. These are fins (like wings) that can be tilted slightly up or down. When the ship is moving forward the diving planes are tilted to force the ship up or down. This is most effective when the dive tanks are perfectly balanced so that the weight of the boat exactly matches the weight of water outside.