|
Turboelectric
A turbo-electric transmission uses electric generators to convert the mechanical energy of a turbine (steam or gas) into electric energy, which then powers electric motors and converts back into mechanical energy that power the driveshafts. Turbo-electric drives are used in some rail locomotives (gas turbines, ''e.g.'' with the first TGV) and ships (steam and more recently gas turbines). An advantage of turbo-electric transmission is that it allows the adaptation of high-speed turbines to slow turning propellers or wheels without a heavy and complex gearbox. It has the advantage of being able to provide electricity for the ship or train's other electrical systems, such as lighting, computers, radar, and communications equipment. Other advantages for ships include greater watertight subdivision, quieter operations, and safety (via instant thrust reversal by changing engine direct current polarity) for submarines.Friedman, 1994, pp 136, 147–149 Ships with turbo-electric drive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USS Tullibee (SSN-597)
USS ''Tullibee'' (SSN-597), a unique submarine, was the second ship of the United States Navy to be named for the tullibee, any of several whitefishes of central and northern North America. At 273 feet long and 2,640 tons displacement, USS ''Tullibee'' was the smallest nuclear-powered attack submarine in the US submarine fleet, although she was originally designed mainly for the anti-submarine (ASW) 'hunter-killer' role and was redesignated an attack submarine when the two roles were merged. The initial manning complement was 7 officers and 60 enlisted men. However before inactivation, the crew included 13 officers and over 100 enlisted men. During her career, ''Tullibee'' achieved much and conducted many submarine firsts. During her commissioned service she submerged and surfaced 730 times and traveled approximately equal to the distance from the earth to the moon and halfway back. Construction ''Tullibee'' was the result of Project Nobska, a study ordered in 1956 by Admira ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Union Rotoiti
''Union Rotoiti'' was a large roll-on/roll-off vessel operated on the trans Tasman route by the Union Steam Ship Company of New Zealand (USSCo.). Along with her sister ship ''Union Rotorua'', she was unusual in that she originally had turbo-electric transmission. Construction ''Union Rotoiti'' was built by Broken Hill Pty (BHP) at the Whyalla Steelworks in South Australia. She was completed on 22 June 1977. Delivery was delayed by a year and costs went over budget by $8 million dollars bringing the total cost to $30 million dollars. It was subsequently acknowledged that ''Rotoiti'' and her sister ship ''Rotorua'' could have been built for half the price if they had been built outside Australia. ''Union Rotoiti'' was unusual in that she was powered by gas turbine. The ship's main gas turbine / electric machinery consisted of a single General Electric MM5262RB gas turbine operating on a regenerative cycle. This was coupled to an AC generator to provide a maximum designed continuou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Union Rotorua
''Union Rotorua'' was a large ro-ro vessel operated on the trans Tasman route by the Union Steam Ship Company of New Zealand (USSCo). Along with her sister ship ''Union Rotoiti'', she was unusual in that she originally had turbo-electric transmission. Construction ''Union Rotorua'' was built by Broken Hill Pty (BHP) at the Whyalla Steelworks in South Australia. She was launched on 19 January 1976. Delivery was delayed by a year and costs went over-budget by $8 million bringing the total cost to $30 million. It was subsequently acknowledged that ''Rotoiti'' and her sister ship ''Rotorua'' could have been built for half the price if they had been built outside Australia. ''Union Rotorua'' was unusual in that she was powered by gas turbine. The ship's main gas turbine / electric machinery consisted of a single General Electric MM5262RB gas turbine operating on a regenerative cycle. This was coupled to an AC generator to provide a maximum designed continuous rating of 18822 kW ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SS Yorktown (1894)
SS ''Yorktown'' was launched February 10, 1894, by Delaware River Iron Ship Building and Engine Works, Chester, Pennsylvania for the Old Dominion Steamship Company for the company's overnight New York City/Norfolk, Virginia service. The United States Navy purchased ''Yorktown'' on April 21, 1898, to be commissioned as the second USS ''Resolute'', an auxiliary cruiser and transport that saw naval service during the Spanish–American War 1898–1899. The United States Department of War acquired the ship on January 22, 1900, for service as the United States Army Transport (USAT) ''Rawlings''. The ship was sold to the Merchants and Miners Transportation Company of Baltimore, Maryland on July 27, 1901, and renamed ''Powhatan''. ''Powhatan'' was wrecked in 1916 and in 1919 rebuilt as the world's first turbo-electric propelled passenger ship ''Cuba'' for luxury passenger and express freight service between Florida and Cuba with the Miami Steamship Company beginning service in 1920. Rena ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Azimuth Thruster
An azimuth thruster is a configuration of marine propellers placed in pods that can be rotated to any horizontal angle (azimuth), making a rudder unnecessary. These give ships better maneuverability than a fixed propeller and rudder system. Types of azimuth thrusters There are two major variants, based on the location of the motor: # Mechanical transmission, which connects a motor inside the ship to the outboard unit by gearing. The motor may be diesel or diesel-electric. Depending on the shaft arrangement, mechanical azimuth thrusters are divided into L-drive and Z-drive. An L-drive thruster has a vertical input shaft and a horizontal output shaft with one right-angle gear. A Z-drive thruster has a horizontal input shaft, a vertical shaft in the rotating column and a horizontal output shaft, with two right-angle gears. # Electrical transmission, more commonly called pods, where an electric motor is fitted in the pod itself, connected directly to the propeller without ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rolls-Royce Plc
Rolls-Royce Holdings plc is a British multinational aerospace and defence company incorporated in February 2011. The company owns Rolls-Royce, a business established in 1904 which today designs, manufactures and distributes power systems for aviation and other industries. Rolls-Royce is the world's second-largest maker of aircraft engines (after General Electric) and has major businesses in the marine propulsion and energy sectors. Rolls-Royce was the world's 16th largest defence contractor in 2018 when measured by defence revenues. Rolls-Royce Holdings plc is listed on the London Stock Exchange, where it is a constituent of the FTSE 100 Index. At the close of London trading on 28 August 2019, the company had a market capitalisation of £4.656bn, the 85th-largest of any company with a primary listing on the London Stock Exchange. The company's registered office is at Kings Place, near Kings Cross in London. History Ownership Rolls-Royce grew from the engineering business ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Electric
General Electric Company (GE) is an American multinational conglomerate founded in 1892, and incorporated in New York state and headquartered in Boston. The company operated in sectors including healthcare, aviation, power, renewable energy, digital industry, additive manufacturing and venture capital and finance, but has since divested from several areas, now primarily consisting of the first four segments. In 2020, GE ranked among the Fortune 500 as the 33rd largest firm in the United States by gross revenue. In 2011, GE ranked among the Fortune 20 as the 14th most profitable company, but later very severely underperformed the market (by about 75%) as its profitability collapsed. Two employees of GE – Irving Langmuir (1932) and Ivar Giaever (1973) – have been awarded the Nobel Prize. On November 9, 2021, the company announced it would divide itself into three investment-grade public companies. On July 18, 2022, GE unveiled the brand names of the companies it will ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USS Saturn (F40) Before Refitting To Become AF49 At Norfolk, VA
USS ''Saturn'' is a name used more than once by the United States Navy: * , an iron collier, was launched during 1890 by Harlan & Hollingsworth Co., Wilmington, Delaware * , a cargo ship acquired by the Navy on 20 April 1942 * was a combat stores ship acquired from the United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and North ... in 1983. {{DEFAULTSORT:Saturn United States Navy ship names ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SS Normandie
The SS ''Normandie'' was a French ocean liner built in Saint-Nazaire, France, for the French Line ''Compagnie Générale Transatlantique'' (CGT). She entered service in 1935 as the largest and fastest passenger ship afloat, transatlantic crossing, crossing the Atlantic in a record 4.14 days, and remains the most powerful steam Turbo-electric transmission, turbo-electric-propelled passenger ship ever built. ''Normandie''s novel design and lavish interiors led many to consider her the greatest of ocean liners,''Floating Palaces.'' (1996) A&E. TV Documentary. Narrated by Fritz Weaver and she would go on to heavily influence the French arm of the Streamline Moderne design movement (called the ''style paquebot'', or "ocean liner style"). Despite this, she was not a commercial success and relied partly on government subsidy to operate. During service as the flagship of the CGT, she made 139 westbound transatlantic crossings from her home port of Le Havre to New York City. ''Normandie' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_(cropped).jpg "Click for more on -> SS Yorktown (1894)")
