Boat building — Boat building, one of the oldest branches of engineering, is concerned with constructing the hulls of boats and, for sailboats, the masts, spars and rigging.Parts* Bow the front and generally sharp end of the hull. It is designed to reduce the… … Wikipedia
Displacement–length ratio — The displacement–length ratio (DLR or D/L ratio) is a calculation used to express how heavy a boat is relative to its waterline length. (Rousmaniere, 1999) A DLR is calculated by dividing a boat s displacement in long tons (2,240 pounds) by one… … Wikipedia
Displacement-Length Ratio — The displacement length ratio (DLR) is a calculation used to express how heavy a boat is relative to its waterline length.A DLR is calculated by dividing a boat s displacement in long tons (2,240 pounds) by one one hundredth of the waterline… … Wikipedia
Boat lift — A boat lift, ship lift, or lift lock is a machine for transporting boats between water at two different elevations, and is an alternative to the canal lock and the canal inclined plane.It may be either vertically moving, like the ship lifts in… … Wikipedia
displacement — I (New American Roget s College Thesaurus) Removal from the usual place Nouns 1. displacement, misplacement, dislocation (see disjunction); transposition; ejection, dislodgment, exile; removal (see transportation); fish out of water;… … English dictionary for students
Ron Moore (boat builder) — Ron Moore is largely credited, along with George Olson and Bill Lee, tohave given rise to the modern ULDB, or ultralight displacement boat. This yacht type revolutionized sailing as the modern world knows it, especiallyin downwind races as are… … Wikipedia
PT boat — PT 105 at high speed PT Boats were a variety of motor torpedo boat (hull classification symbol PT , for Patrol Torpedo ), a small, fast vessel used by the United States Navy in World War II to attack larger surface ships. The PT boat squadrons… … Wikipedia
Motor Torpedo Boat — MTBs returning from an anti E boat patrol, June 1944 Motor Torpedo Boat (MTB) was the name given to fast torpedo boats by the Royal Navy, and the Royal Canadian Navy. The capitalised term is generally used for the Royal Navy (RN) boats and… … Wikipedia
U-boat — is the anglicized version of the German word Audio|De U Boot pronunciation.ogg| U Boot , itself an abbreviation of Unterseeboot (undersea boat), and refers to military submarines operated by Germany, particularly in World War I and World War II.… … Wikipedia
V boat — Seven V boats (from left to right: Cachalot, Dolphin, Barracuda, Bass, Bonita, Nautilus, Narwhal), with submarine tender Holland … Wikipedia
V-boat — The V boats were a group of nine United States Navy submarines built between World War I and World War II from 1919 to 1934. These were not a ship class in the usual sense of a series of nearly identical ships built from the same design, but… … Wikipedia