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2. Montana-class battleship - Wikipedia

   en.wikipedia.org/wiki/Montana-class_battleship

   The inboard shafts were housed in skegs, which, while increasing hydrodynamic drag, substantially strengthened the stern structure. [ 28 ] While less powerful than the 212,000 hp (158,000 kW) powerplant used by the Iowa s, the Montana ' s plant enabled the machinery spaces to be considerably more subdivided, with extensive longitudinal and ...

3. Iowa-class battleship - Wikipedia

   en.wikipedia.org/wiki/Iowa-class_battleship

   Drawing on a 1935 empirical formula for predicting a ship's maximum speed based on scale-model studies in flumes of various hull forms and propellers [N 5] and a newly developed empirical theorem that related waterline length to maximum beam, the Navy drafted plans for a battleship class with a maximum beam of 108 ft 2 in (32.97 m) which, when ...

4. Inboard motor - Wikipedia

   en.wikipedia.org/wiki/Inboard_motor

   A 260-horsepower (190 kW) diesel inboard motor An inboard motor is a marine propulsion system for boats.As opposed to an outboard motor, where an engine is mounted outside the hull of the craft, an inboard motor is an engine enclosed within the hull of the boat, usually connected to a propulsion screw by a driveshaft.

5. Marine propulsion - Wikipedia

   en.wikipedia.org/wiki/Marine_propulsion

   The shaft power from each can either go directly to the propeller, pump jet or other mechanism, or it goes through some form of transmission; mechanical, electrical or hydraulic. In the 1800s, steam was one of the main power sources for marine propulsion.

6. Sterndrive - Wikipedia

   en.wikipedia.org/wiki/Sterndrive

   A sterndrive or inboard/outboard drive (I/O) is a form of marine propulsion which combines inboard power with outboard drive. The engine sits just forward of the transom while the drive unit ( outdrive or drive leg ) lies outside the hull .

7. USS Washington (BB-56) - Wikipedia

   en.wikipedia.org/wiki/USS_Washington_(BB-56)

   USS Washington (BB-56) was the second and final member of the North Carolina class of fast battleships, the first vessel of the type built for the United States Navy.Built under the Washington Treaty system, North Carolina ' s design was limited in displacement and armament, though the United States used a clause in the Second London Naval Treaty to increase the main battery from the original ...

8. HMS Vanguard (23) - Wikipedia

   en.wikipedia.org/wiki/HMS_Vanguard_(23)

   The longitudinal distance between the inboard and outboard propellers was increased from 33.5 to 51.5 feet (10.2 to 15.7 m) to reduce the chance of a single torpedo wrecking both propeller shafts on one side and watertight access trunks were added to all spaces below the deep waterline to prevent the progressive flooding through open watertight ...

9. Stave bearing - Wikipedia

   en.wikipedia.org/wiki/Stave_bearing

   A stave bearing is a simple journal bearing where a shaft rotates in a bearing housing. Rather than the usual arrangement where the fixed part of the bearing surrounds most of the circumference of the shaft in one or two pieces, a stave bearing uses a large number of axial staves to support the shaft. A large housing is made with grooves ...