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USS Firm (AM-98)
USS ''Firm'' (AM-98) was an of the United States Navy. Laid down on 21 October 1941 by the Penn-Jersey Corp., Camden, New Jersey, launched on 29 May 1942, and commissioned on 10 April 1943. The vessel was reclassified as a submarine chaser ''PC-1602'' on 1 June 1944; it was later reclassified as a control submarine chaser ''PCC-1602'' on 1 August 1945. Very little information is available about the activities of this vessel while operating as a submarine chaser. ''PC-1602'' was transferred to the Maritime Commission The United States Maritime Commission (MARCOM) was an independent executive agency of the U.S. federal government that was created by the Merchant Marine Act of 1936, which was passed by Congress on June 29, 1936, and was abolished on May 24, 195 ... for disposal on 15 June 1948, and sold to Walter H. Wilms. Fate unknown. References * External links * Ships of the U.S. Navy, 1940-1945 PC-1602 (USS ''Firm'') {{DEFAULTSORT:Firm (AM-98) Adroit-class min ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Camden, New Jersey
Camden is a city in and the county seat of Camden County, in the U.S. state of New Jersey. Camden is part of the Delaware Valley metropolitan area and is located directly across the Delaware River from Philadelphia, Pennsylvania. At the 2020 U.S. census, the city had a population of 71,791.Camden city, Camden County, New Jersey . Accessed April 26, 2022. The 's [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Busch-Sulzer
The Busch-Sulzer Bros. Diesel Engine Company was founded by Adolphus Busch of the Anheuser-Busch brewing company in 1911 as a joint venture with Sulzer Brothers of Switzerland. The company manufactured diesel engines until 1946. In 1897, Adolphus Busch acquired rights to build diesel engines in the United States, with Rudolph Diesel as a consultant. The first companies resulting from this were the Diesel Motor Company (1898–1902) of New York City and the American Diesel Engine Company (1902–1911), which relocated to St. Louis, Missouri in 1908 and was succeeded by Busch-Sulzer. Although Busch acquired the rights to build Sulzer designs with the formation of Busch-Sulzer, the American joint venture preferred its own designs. The first submarines with Busch-Sulzer engines were the United States L-class submarines L-5 through L-8, designed by the Lake Torpedo Boat Company and launched 1916–17. Busch-Sulzer continued to produce engines for the US Navy and other custom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel Engine
The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-called compression-ignition engine (CI engine). This contrasts with engines using spark plug-ignition of the air-fuel mixture, such as a petrol engine (gasoline engine) or a gas engine (using a gaseous fuel like natural gas or liquefied petroleum gas). Diesel engines work by compressing only air, or air plus residual combustion gases from the exhaust (known as exhaust gas recirculation (EGR)). Air is inducted into the chamber during the intake stroke, and compressed during the compression stroke. This increases the air temperature inside the cylinder to such a high degree that atomised diesel fuel injected into the combustion chamber ignites. With the fuel being injected into the air just before combustion, the dispersion of the fuel is une ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Farrel-Birmingham
The Farrel Corporation is an American manufacturing company based in Ansonia, Connecticut. Today, they manufacture process equipment for the plastics industry, and employ roughly 100 people. History Farrel was founded in 1848 as a foundry by Almon Farrel. During the American Civil War, they produced bayonets and cannon barrels. In 1926, Farrel Foundry merged with Birmingham Iron Foundry of Derby, Connecticut. During the 1920s, Farrel-Birmingham began creating gears for use in US Navy propulsion systems in Buffalo, New York. In 1941, the Navy contracted with Farrel-Birmingham and General Motors to begin manufacturing a rapid reversal gear system that would allow vessels to reverse engines without first slowing down. In 1942, Farrel-Birmingham received the E award from the Navy for their efforts. In 1963, Farrel Birmingham adopted the current name of Farrel Corporation and began manufacturing process equipment for plastic plants. During the 1970s and 1980s, Farrel we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gear
A gear is a rotating circular machine part having cut teeth or, in the case of a cogwheel or gearwheel, inserted teeth (called ''cogs''), which mesh with another (compatible) toothed part to transmit (convert) torque and speed. The basic principle behind the operation of gears is analogous to the basic principle of levers. A gear may also be known informally as a cog. Geared devices can change the speed, torque, and direction of a power source. Gears of different sizes produce a change in torque, creating a mechanical advantage, through their ''gear ratio'', and thus may be considered a simple machine. The rotational speeds, and the torques, of two meshing gears differ in proportion to their diameters. The teeth on the two meshing gears all have the same shape. Two or more meshing gears, working in a sequence, are called a gear train or a '' transmission''. The gears in a transmission are analogous to the wheels in a crossed, belt pulley system. An advantage of gears is tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
3"/50 Caliber Gun
The 3"/50 caliber gun (spoken "three-inch fifty-caliber") in United States naval gun terminology indicates the gun fired a projectile in diameter, and the barrel was 50 calibers long (barrel length is 3 in × 50 = ). Different guns (identified by Mark numbers) of this caliber were used by the U.S. Navy and U.S. Coast Guard from 1890 through to 1994 on a variety of combatant and transport ship classes. The gun is still in use with the Spanish Navy on ''Serviola''-class patrol boats. Early low-angle guns The US Navy's first 3"/50 caliber gun (Mark 2) was an early model with a projectile velocity of per second. Low-angle (single-purpose/non-anti-aircraft) mountings for this gun had a range of 7000 yards at the maximum elevation of 15 degrees. The gun entered service around 1900 with the s, and was also fitted to s. By World War II these guns were found only on a few Coast Guard cutters and Defensively Equipped Merchant Ships. Low-angle 3"/50 caliber guns (Marks 3, 5, 6 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bofors 40 Mm Automatic Gun L/60
The Bofors 40 mm Automatic Gun L/60 (often referred to simply as the "Bofors 40 mm gun", the "Bofors gun" and the like, see name) is an anti-aircraft autocannon, designed in the 1930s by the Swedish arms manufacturer AB Bofors. The gun was designed as an intermediate anti-aircraft gun, filling the gap between fast firing close-range small calibre anti-aircraft guns and slower firing long-range high calibre anti-aircraft guns, a role which previously was filled by older outdated guns. The Bofors 40 mm L/60 was for its time perfectly suited for this role and outperformed competing designs in the years leading up to World War II in both effectiveness and reliability. It entered the export market around 1932 and was in service with 18 countries by 1939. Throughout World War II it became one of the most popular and widespread medium-weight anti-aircraft guns. It was used by the majority of the western Allies and some Axis powers such as Nazi Germany and Hungary. In the pos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Navy
The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage of its active battle fleet alone exceeding the next 13 navies combined, including 11 allies or partner nations of the United States as of 2015. It has the highest combined battle fleet tonnage (4,635,628 tonnes as of 2019) and the world's largest aircraft carrier fleet, with eleven in service, two new carriers under construction, and five other carriers planned. With 336,978 personnel on active duty and 101,583 in the Ready Reserve, the United States Navy is the third largest of the United States military service branches in terms of personnel. It has 290 deployable combat vessels and more than 2,623 operational aircraft . The United States Navy traces its origins to the Continental Navy, which was established during the American Revo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Penn-Jersey Shipbuilding
Penn-Jersey Shipbuilding Corp. of Camden, New Jersey was a shipyard opened in March 1940 to build ships for World War II under the Emergency Shipbuilding Program. The shipyard was on Cooper Point at north end of North 5th Street at . After building 29 vessels Penn-Jersey Shipbuilding Corp. closed in June 1945 after building its last vessels. Ships built Penn-Jersey Shipbuilding Corp. built ships: * Barracuda for Panama Canal Comm. a Patrol Launch * Albacore for Panama Canal Comm. Patrol Launch *Four US Coast Guard Patrol Launches * General Construction barge * USS Firm (AM-98) US Navy Minesweeper * USS Force (AM 99) US Navy Minesweeper ** Cargo ships 258 foot type N3-M-A1 for United States Maritime Commission: * Elias D. Knight, became USS Enceladus (AK-80) * William Lester * Eben H. Linnell * Asa Lothrop * Laughlin McKay * Oliver R. Mumford, became Media (AK-83) * William Nott * John L. Manson * Nathaniel Matthews * Josiah Paul, became Nashira (AK-85) * Sumner ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Submarine Chaser
A submarine chaser or subchaser is a small naval vessel that is specifically intended for anti-submarine warfare. Many of the American submarine chasers used in World War I found their way to Allied nations by way of Lend-Lease in World War II. Submarine chaser variants U.S. Navy submarine chasers were designed specifically to destroy German submarines in World War I, and Japanese and German submarines in World War II. The small SC-1-class submarine chasers of the design used in World War I carried the hull designator SC (for Submarine Chaser). Their main weapon was the depth charge. They also carried machine guns and anti-aircraft guns. The similar-sized SC-497-class was built for World War II. Also in World War II, larger PC-461-class submarine chasers used the PC hull classification symbol (for Patrol, Coastal).Gardiner and Chesneau, pp. 71, 152-154 Class relationships: * 438 (98t, wooden hull) * 343 (450t, steel hull) * 68 (850t, steel hull) ** used in similar ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maritime Commission
The United States Maritime Commission (MARCOM) was an independent executive agency of the U.S. federal government that was created by the Merchant Marine Act of 1936, which was passed by Congress on June 29, 1936, and was abolished on May 24, 1950. The commission replaced the United States Shipping Board which had existed since World War I. It was intended to formulate a merchant shipbuilding program to design and build five hundred modern merchant cargo ships to replace the World War I vintage vessels that comprised the bulk of the United States Merchant Marine, and to administer a subsidy system authorized by the Act to offset the cost differential between building in the U.S. and operating ships under the American flag. It also formed the United States Maritime Service for the training of seagoing ship's officers to man the new fleet. As a symbol of the rebirth of the U.S. Merchant Marine and Merchant Shipbuilding under the Merchant Marine Act, the first vessel contracted for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
