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Naval Aircraft Factory PN
The Naval Aircraft Factory PN was a series of open cockpit American flying boats of the 1920s and 1930s. A development of the Felixstowe F5L flying boat of the World War I, variants of the PN were built for the United States Navy by Douglas Aircraft Company, Douglas, Keystone Aircraft, Keystone and Glenn L. Martin Company, Martin. Development and design The PN flying boats were twin-engine biplanes with their engines mounted in nacelles between the fabric-covered wings. Other than on the PN-11 which had a different hull form, the hull had large chines running back to the first step similar to those on the F.5L. It had a standard crew of five, but was capable of carrying a relief crew for long patrols. Early machines had wood hulls and wings, with the wings covered in fabric, while various versions replaced these with metal components. A wide variety of V-12 and radial engines were fitted, due to problems with several of the engines chosen, with later versions generally using rad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WikiProject Aircraft
A WikiProject, or Wikiproject, is an affinity group for contributors with shared goals within the Wikimedia movement. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within Wikimedia project, sibling projects such as Wiktionary, Wikiquote, Wikidata, and Wikisource. They also exist in different languages, and translation of articles is a form of their collaboration. During the COVID-19 pandemic, CBS News noted the role of Wikipedia's WikiProject Medicine in maintaining the accuracy of articles related to the disease. Another WikiProject that has drawn attention is WikiProject Women Scientists, which was profiled by ''Smithsonian Magazine, Smithsonian'' for its efforts to improve coverage of women scientists which the profile noted had "helped increase the number of female scientists on Wikipedia from around 1,600 to over 5,000". On Wikipedia Some Wikipedia WikiProjects are substantial enough to engage in cooperative activities with outsi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naval Aircraft Factory PN9
A navy, naval force, military maritime fleet, war navy, or maritime force is the branch of a nation's armed forces principally designated for naval and amphibious warfare; namely, lake-borne, riverine, littoral, or ocean-borne combat operations and related functions. It includes anything conducted by surface ships, amphibious ships, submarines, and seaborne aviation, as well as ancillary support, communications, training, and other fields. The strategic offensive role of a navy is projection of force into areas beyond a country's shores (for example, to protect sea-lanes, deter or confront piracy, ferry troops, or attack other navies, ports, or shore installations). The strategic defensive purpose of a navy is to frustrate seaborne projection-of-force by enemies. The strategic task of a navy also may incorporate nuclear deterrence by use of submarine-launched ballistic missiles. Naval operations can be broadly divided between riverine and littoral applications (brown-water nav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USS Aroostook (CM-3)
USS ''Aroostook'' (ID-1256 / CM-3 / AK-44) was a steamship that was built as the Coastal trading vessel, coastal cargo liner ''Bunker Hill''. She was launched in 1907 by Rose Fitzgerald, who in 1914 became Rose Kennedy. In 1911 ''Bunker Hill'' was refitted as a passenger ship. She ran between Port of Boston, Boston and Port of New York and New Jersey, New York until 1917, when the United States Navy commissioned her as USS ''Aroostook'', and converted her into a minelayer. In 1918 she took part in laying the North Sea Mine Barrage. In 1919 ''Aroostook'' was converted into a Seaplane tender, flying boat tender, and supported the US Navy's successful attempt to fly a flying boat from North America to Europe. In 1925 she supported the Navy's unsuccessful attempt to fly a flying boat from California to Hawaii, and led the search for the aircraft after it had to touch down in mid-ocean. In 1931 she was decommissioned and placed in the reserve fleet. In 1941 the Navy tried to convert ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USS William Jones (DD-308)
USS ''William Jones'' (DD-308), a ''Clemson''-class destroyer in the United States Navy, named for William Jones. History ''William Jones'' was laid down on 2 October 1918, at San Francisco, California, by the Bethlehem Steel Corporation. She was launched on 9 April 1919, sponsored by Mrs. Ernest P. McRitchie, the wife of the assistant naval architect at Bethlehem Shipbuilding Corporation, and was commissioned at the Mare Island Naval Shipyard, Vallejo, California, on 30 September 1920. Initially assigned to Division 34, Squadron 12, Destroyer Force, Pacific Fleet, ''William Jones'' operated off the west coast on duty in connection with the Officers' Engineering School until October 1921, cruising as far north as Seattle, Washington and as far south as the waters off the Panama Canal Zone. Assigned to Destroyer Squadrons, Battle Fleet, early in 1922, the destroyer operated with this force over the next seven years. Her operations took the ship up and down the west coast f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hawaii
Hawaii ( ; ) is an island U.S. state, state of the United States, in the Pacific Ocean about southwest of the U.S. mainland. One of the two Non-contiguous United States, non-contiguous U.S. states (along with Alaska), it is the only state not on the North American mainland, the only state that is an archipelago, and the only state in the tropics. Hawaii consists of 137 volcanic islands that comprise almost the entire Hawaiian Islands, Hawaiian archipelago (the exception, which is outside the state, is Midway Atoll). Spanning , the state is Physical geography, physiographically and Ethnology, ethnologically part of the Polynesian subregion of Oceania. Hawaii's ocean coastline is consequently the List of U.S. states and territories by coastline, fourth-longest in the U.S., at about . The eight main islands, from northwest to southeast, are Niihau, Niihau, Kauai, Kauai, Oahu, Oahu, Molokai, Molokai, Lanai, Lānai, Kahoʻolawe, Kahoolawe, Maui, and Hawaii (island), Hawaii, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Francisco
San Francisco, officially the City and County of San Francisco, is a commercial, Financial District, San Francisco, financial, and Culture of San Francisco, cultural center of Northern California. With a population of 827,526 residents as of 2024, San Francisco is the List of California cities by population, fourth-most populous city in the U.S. state of California and the List of United States cities by population, 17th-most populous in the United States. San Francisco has a land area of at the upper end of the San Francisco Peninsula and is the County statistics of the United States, fifth-most densely populated U.S. county. Among U.S. cities proper with over 250,000 residents, San Francisco is ranked first by per capita income and sixth by aggregate income as of 2023. San Francisco anchors the Metropolitan statistical area#United States, 13th-most populous metropolitan statistical area in the U.S., with almost 4.6 million residents in 2023. The larger San Francisco Bay Area ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the world's countries participated, with many nations mobilising all resources in pursuit of total war. Tanks in World War II, Tanks and Air warfare of World War II, aircraft played major roles, enabling the strategic bombing of cities and delivery of the Atomic bombings of Hiroshima and Nagasaki, first and only nuclear weapons ever used in war. World War II is the List of wars by death toll, deadliest conflict in history, causing World War II casualties, the death of 70 to 85 million people, more than half of whom were civilians. Millions died in genocides, including the Holocaust, and by massacres, starvation, and disease. After the Allied victory, Allied-occupied Germany, Germany, Allied-occupied Austria, Austria, Occupation of Japan, Japan, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wright R-1750
Wright Cyclone was the name given to a family of air-cooled radial piston engines designed by the Wright Aeronautical Corporation and used in numerous American aircraft in the 1930s, 1940s and 1950s. Background The Wright Aeronautical Corporation was formed in 1919, initially to develop liquid-cooled Hispano-Suiza V8 engines under license. In 1923 the Wright purchased the Lawrance Aero Engine Company, and with the purchase Charles Lawrance came to Wright as the Vice-President. Later that year the US Navy awarded Wright a contract to develop two new air-cooled radial engines. The first, called the P-1, was a 9-cylinder single row design of displacement that was derived from an earlier Lawrence design, it produced . The second, the P-2, had the same displacement as the P-1, but was an improved design that produced . Neither engine entered production, with the Navy selecting the superior Pratt & Whitney R-1340 Wasp, so in 1926 work started on the improved design, which became the R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pratt & Whitney R-1690
The Pratt & Whitney R-1690 Hornet was a widely used American aircraft engine. Developed by Pratt & Whitney, 2,944 were produced from 1926 through 1942. It first flew in 1927. It was a single-row, 9-cylinder air-cooled radial design. Displacement was 1,690 cubic inches (27.7 L). It was built under license in Italy as the Fiat A.59. In Germany, the BMW 132 was a developed version of this engine. The Pratt & Whitney R-1860, R-1860 Hornet B was an enlarged version produced from 1929. Variants ;R-1690-3: ;R-1690-5: ;R-1690-11: ;R-1690-13: ;R-1690-S5D1G: ;R-1690-52: ;R-1690-SDG: ;R-1690-S1EG: ;R-1690-S2EG: ;R-1690-25: ;R-1690-S1C3G: ;Fiat A.59 R.: License built in Italy with reduction gearing. ;Fiat A.59 R.C.: License built in Italy with reduction gearing and supercharger. ;BMW Hornet:License production of the Hornet in Germany, independently developed as the BMW 132. Applications Engines on display * There is a R-1690 on display at the New England Air Museum, Bradley In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wright R-1820
The Wright R-1820 Cyclone 9 is an American radial engine developed by Curtiss-Wright, widely used on aircraft in the 1930s through 1950s. It was produced under license in France as the Hispano-Suiza 9V or Hispano-Wright 9V, and in the Soviet Union as the Shvetsov M-25. Design and development The R-1820 Cyclone 9 represented a further development of the Wright P-2 engine dating back to 1925. Featuring a greater displacement and a host of improvements, the R-1820 entered production in 1931. The engine remained in production well into the 1950s. The R-1820 was built under license by Lycoming, Pratt & Whitney Canada, and also, during World War II, by the Studebaker Corporation. The Soviet Union had purchased a license for the design, and the Shvetsov '' OKB'' was formed to metricate the American specification powerplant for Soviet government-factory production as the '' M-25'', with the R-1820's general design features used by the Shvetsov design bureau for many of their futu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Packard 1A-1500
The Packard 1A-1500 was an American 12-cylinder liquid-cooled 60-degree Vee piston aircraft engine designed in 1924.Gunston 1989, p.109. Test flown in the second prototype Douglas XO-2, it proved to be unreliable. Only 29 engines were built. Applications * Boeing Model 15 * Boeing XP-4 * Curtiss Falcon * Douglas XO-2 * Loening OL Specifications (1A-1500) See also * Packard 1A-2500 The Packard 1A-2500 is an American V-12 liquid-cooled aircraft engine designed by Packard in 1924 as a successor to the World War I-era Liberty L-12. Five aero variants were produced, of which the 3A-2500 was the most numerous. Three marine v ... References Notes Bibliography * Gunston, Bill. ''World Encyclopedia of Aero Engines''. Cambridge, England. Patrick Stephens Limited, 1989. Aircraft Engine Historical Society {{Packard aeroengines 1920s aircraft piston engines 1A-1500 V12 aircraft engines ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Packard 1A-2500
The Packard 1A-2500 is an American V-12 liquid-cooled aircraft engine designed by Packard in 1924 as a successor to the World War I-era Liberty L-12. Five aero variants were produced, of which the 3A-2500 was the most numerous. Three marine versions, used most prominently in American World War II PT-boats, the 3M-2500, 4M-2500, and 5M-2500, were also derived from it. Applications * Boeing TB *Heinkel HE 8 * Martin T3M * Naval Aircraft Factory PN * Huff-Daland LB-1 * PT boats - marine versions of the 3M/4M/5M-2500 * Packard-Bentley one-off race car *USSR World War II torpedo boats and sub-chasers, which were fitted with 535 4M-2500 engines with W-8 modification under Lend-Lease Variants ;1A-2500:1924, 800 hp. Six built. ;2A-2500 :1925, 800 hp. 75 built. ;2A-2540:? Huff-Daland XHB-1 ;3A-2500:1926, Geared propeller drive option, 800 hp. 175 built. ;4A-2500:1927, fitted with a supercharger, 900 hp. One built. ;5A-2500:1930, experimental use only, 1500 hp. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
