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XP3D
The Douglas XP3D was a prototype American patrol flying boat of the 1930s. A twin-engined high-winged monoplane, the P3D was produced by the Douglas Aircraft Company to equip the US Navy's Patrol squadrons, but despite meeting the Navy's requirements, the rival Consolidated PBY was preferred owing to a lower price. Development and design In 1933, the United States Navy placed orders with both Douglas and Consolidated Aircraft for single prototypes of patrol flying boats, to replace the Consolidated P2Y and Martin P3M that equipped the Navy's patrol squadrons.Swanborough and Bowers 1976, p.80. Douglas's design, the P3D, was designed in parallel with the smaller YB-11 being developed for the United States Army Air Corps (which was eventually built as the YOA-5), and like the YB-11, was a twin-engined high-winged monoplane with its engines (the new Pratt & Whitney R-1830 Twin Wasp radial engine mounted in nacelles above and ahead of the wing. Unlike the YB-11, it was a pure flyin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Douglas YOA-5
The Douglas YOA-5 was an amphibious aircraft designed for the United States Army Air Corps, based on the Navy's Douglas XP3D. Although a prototype was built, it did not enter production. Design and development In November 1932, the U.S. Army ordered the development of an amphibious reconnaissance aircraft/bomber, intended to act as navigation leaders and rescue aircraft for formations of conventional bombers. The resultant aircraft, which was ordered under the bomber designation YB-11, was designed in parallel with the similar but larger Douglas XP3D patrol flying boat for the United States Navy. It was a high-winged monoplane with two Wright R-1820 Cyclone radial engines mounted in individual nacelles above the wing, resembling an enlarged version of the Douglas Dolphin. Prior to completion, it was redesignated firstly as an observation aircraft YO-44 and then as the YOA-5 'observation amphibian model 5'.Wagner, Ray, ''American Combat Planes'', 1981, Doubleday & Company, Ga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PBY Catalina
The Consolidated Model 28, more commonly known as the PBY Catalina (U.S. Navy designation), is a flying boat and amphibious aircraft designed by Consolidated Aircraft in the 1930s and 1940s. In U.S. Army service, it was designated as the OA-10 and in Canadian service as the Canso, and it later received the NATO reporting name Mop. It was one of the most widely used seaplanes of World War II. Catalinas served with every branch of the United States Armed Forces and in the air forces and navies of many other nations. The last military PBYs served until the 1980s. As of 2021, 86 years after its first flight, the aircraft continues to fly as a waterbomber (or airtanker) in aerial firefighting operations in some parts of the world. Design and development Background The PBY was originally designed to be a patrol bomber, an aircraft with a long operational range intended to locate and attack enemy transport ships at sea to disrupt enemy supply lines. With a mind to a poten ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Consolidated PBY Catalina
The Consolidated Model 28, more commonly known as the PBY Catalina (U.S. Navy designation), is a flying boat and amphibious aircraft designed by Consolidated Aircraft in the 1930s and 1940s. In U.S. Army service, it was designated as the OA-10 and in Canadian service as the Canso, and it later received the NATO reporting name Mop. It was one of the most widely used seaplanes of World War II. Catalinas served with every branch of the United States Armed Forces and in the air forces and navies of many other nations. The last military PBYs served until the 1980s. As of 2021, 86 years after its first flight, the aircraft continues to fly as a Aerial firefighting#Water bombers, waterbomber (or airtanker) in aerial firefighting operations in some parts of the world. Design and development Background The PBY was originally designed to be a Maritime patrol aircraft, patrol bomber, an aircraft with a long operational Range (aeronautics), range intended to locate and attack enemy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ernest King
Ernest Joseph King (23 November 1878 – 25 June 1956) was a Fleet admiral (United States), fleet admiral in the United States Navy who served as Commander in Chief, United States Fleet (COMINCH) and Chief of Naval Operations (CNO) during World War II. Franklin Delano Roosevelt appointed King to command global American strategy during World War II and he held supreme naval command in his unprecedented double capacity as COMINCH and CNO. He was the U.S. Navy's second-most senior officer in World War II after Fleet Admiral William D. Leahy, who served as Chief of Staff to the Commander in Chief. King commanded the United States Navy's operations, planning, and administration and was a member of the Joint Chiefs of Staff and Combined Chiefs of Staff. King graduated fourth in the United States Naval Academy class of 1901. He received his first command in 1914, of the destroyer in the United States occupation of Veracruz, occupation of Veracruz. During World War I, h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Douglas Aircraft
The Douglas Aircraft Company was an American aerospace and defense company based in Southern California. Founded in 1921 by Donald Wills Douglas Sr., it merged with McDonnell Aircraft in 1967 to form McDonnell Douglas, where it operated as a division. History 1920s The company was founded as the Douglas Company by Donald Wills Douglas Sr. on July 22, 1921, in Santa Monica, California, following dissolution of the Davis-Douglas Company. An early claim to fame was the first circumnavigation of the world by air in Douglas airplanes in 1924. In 1923, the U.S. Army Air Service was interested in carrying out a mission to circumnavigate the Earth for the first time by aircraft, a program called "World Flight". Donald Douglas proposed a modified Douglas DT to meet the Army's needs. The two-place, open cockpit DT biplane torpedo bomber had previously been produced for the U.S. Navy.Rumerman, Judy. "The Douglas World Cruiser - Around the World in 175 Days." ''U.S. Centennial of Flig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Douglas Aircraft Company
The Douglas Aircraft Company was an American aerospace manufacturer, aerospace and military, defense company based in Southern California. Founded in 1921 by Donald Wills Douglas Sr., it merged with McDonnell Aircraft in 1967 to form McDonnell Douglas, where it operated as a division. History 1920s The company was founded as the Douglas Company by Donald Wills Douglas Sr. on July 22, 1921, in Santa Monica, California, following dissolution of the Davis-Douglas Company. An early claim to fame was the first aerial circumnavigation, first circumnavigation of the world by air in Douglas airplanes in 1924. In 1923, the U.S. Army Air Service was interested in carrying out a mission to circumnavigate the Earth for the first time by aircraft, a program called "World Flight". Donald Douglas proposed a modified Douglas DT to meet the Army's needs. The two-place, open cockpit DT biplane torpedo bomber had previously been produced for the United States Navy, U.S. Navy.Rumerman, Judy. "The D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flying Boats
A flying boat is a type of seaplane with a hull (watercraft), hull, allowing it to land on water. It differs from a floatplane in having a fuselage that is purpose-designed for flotation, while floatplanes rely on fuselage-mounted floats for buoyancy. Though a flying boat’s fuselage provides buoyancy, it may also utilize under-wing Float (nautical), floats or wing-like hull projections (called sponsons) for additional stability. Ascending into common use during the First World War, flying boats rapidly grew in both scale and capability during the interwar period, during which time numerous operators found commercial success with the type. Flying boats were some of the largest aircraft of the first half of the 20th century, exceeded in size only by bombers developed during the Second World War. Their advantage lay in using water instead of expensive land-based runways, making them the basis for international airlines in the interwar period. They were also commonly used as mar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
M1919 Browning Machine Gun
The M1919 Browning is a .30-06 Springfield, .30 caliber medium machine gun that was widely used during the 20th century, especially during World War II, the Korean War, and the Vietnam War. The M1919 saw service as a light infantry, coaxial weapon, coaxial, mounted, aircraft, and anti-aircraft machine gun by the U.S and many other countries. The M1919 was an air-cooled development of the standard U.S. machine gun of World War I, the John Browning, John M. Browning-designed water-cooled M1917 Browning machine gun, M1917. The emergence of general-purpose machine guns in the 1950s pushed the M1919 into secondary roles in many cases, especially after the arrival of the M60 machine gun, M60 in US Army service. The United States Navy also converted many to 7.62 mm NATO and designated them Mk 21 Mod 0; they were commonly used on riverine craft in the 1960s and 1970s in Vietnam. Many NATO countries also converted their examples to 7.62 mm caliber, and these remained in service well ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Douglas XP3D-2
Douglas may refer to: People * Douglas (given name) * Douglas (surname) Animals * Douglas (parrot), macaw that starred as the parrot ''Rosalinda'' in Pippi Longstocking * Douglas the camel, a camel in the Confederate Army in the American Civil War Businesses * Douglas Aircraft Company * Douglas (cosmetics), German cosmetics retail chain in Europe * Douglas Holding, former German company * Douglas (motorcycles), British motorcycle manufacturer Peerage and Baronetage * Duke of Douglas * Earl of Douglas, or any holder of the title * Marquess of Douglas, or any holder of the title * Douglas baronets Peoples * Clan Douglas, a Scottish kindred * Dougla people, West Indians of both African and East Indian heritage Places Australia * Douglas, Queensland, a suburb of Townsville * Douglas, Queensland (Toowoomba Region), a locality * Port Douglas, North Queensland, Australia * Shire of Douglas, in northern Queensland Canada * Douglas, New Brunswick * Douglas Parish, New Brunswick * Dou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
30-06 Springfield
The .30-06 Springfield cartridge (weaponry), cartridge (pronounced "thirty-Names for the number 0 in English, aught-six" ), 7.62×63mm in metric notation, and called the .30 Gov't '06 by Winchester, was introduced to the United States Army in 1906 and later standardization, standardized; it remained in military use until the late 1970s. In the cartridge's name, ".30" refers to the nominal caliber of the bullet in inches; "06" refers to the year the cartridge was adopted, 1906. It replaced the .30-03 Springfield, 6mm Lee Navy, and .30-40 Krag cartridges. The .30-06 remained the U.S. Army's primary rifle and machine gun cartridge for nearly 50 years before being replaced by the 7.62×51mm NATO and 5.56×45mm NATO, both of which remain in current U.S. and NATO service. The cartridge remains a very popular sporting round, with ammunition produced by all major manufacturers. History In the early-1890s, the U.S. military adopted the smokeless powder .30-40 Krag rimmed cartridge. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pratt & Whitney R-1830-64 Twin Wasp
The Pratt & Whitney R-1830 Twin Wasp is an American air-cooled radial aircraft engine. It has 14 cylinders, arranged in two rings of seven. It displaces and its bore and stroke are both . The design traces its history to 1929 experiments at Pratt & Whitney Pratt & Whitney is an American aerospace manufacturer with global service operations. It is a subsidiary of RTX Corporation (formerly Raytheon Technologies). Pratt & Whitney's aircraft engines are widely used in both civil aviation (especially ... on twin-row designs. Production began in 1932 and it was widely used during the 1930s. It was selected as the power plant for both the four-engined Consolidated B-24 Liberator heavy bomber and the twin-engined Douglas DC-3 transport, two of List of most produced aircraft, the most-produced aircraft. The production run of 173,618 R-1830 examples makes it the most-produced aviation engine in history. A further developed version, the Pratt & Whitney R-2000, R-2000, was produ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Naval Institute
The United States Naval Institute (USNI) is a private non-profit military association that offers independent, nonpartisan forums for debate of national security issues. In addition to publishing magazines and books, the Naval Institute holds several annual conferences. The Naval Institute is based in Annapolis, Maryland. Established in 1873, the Naval Institute claimed "almost 50,000 members" in 2020, mostly active and retired personnel of the United States Navy, Marine Corps and Coast Guard. The organization also has members in over 90 countries. The organization has no official or funding ties to the United States Naval Academy or the United States Navy, though it is based on the grounds of the Naval Academy through permission granted by a 1936 Act of Congress. History The United States Naval Institute was formed on October 9, 1873, by 15 naval officers gathered at the Naval Academy's Department of Physics and Chemistry building in Annapolis to discuss, among other top ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
