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"all boats" have a draft, the part beneath the water. The part above is the freeboard. The part in the water is the Hull.
The curved part of a saddle is called the "seat."
a Hull
Hull
The "Luff".
The main body of a ship is called the hull. The hull runs from the main deck of the vessel all the way to the keel, which is at the center of the vessel where both sides of the hull join under the water. The part of the ship that is built above the hull is called the superstructure.
The bottom of a car
Hull Is The Inside or bottom(?), and deck is the top. other than that i thinks its just called a boat. My best answer would be hull.
The bridge
The very bottom of a ship is where you find the keel. The keel runs the full length of the ship along its centerline and is the backbone of the hull. From the keel all the frames run out and up. the hull is attached to the frames. Picture the keel as the backbone and the frames as the ribs. The hull is the watertight skin that allows the ship to float. Within the hull are compartments (rooms) and at the top of the hull is the main deck. The superstructure is built upon the main deck.
by cutting the curved part.
curved keel