R-2600
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R-2600
The Wright R-2600 Cyclone 14 (also called Twin Cyclone) is an American radial engine developed by Curtiss-Wright and widely used in aircraft in the 1930s and 1940s. History In 1935, Curtiss-Wright began work on a more powerful version of their successful R-1820 Cyclone 9. The result was the R-2600 Twin Cyclone, with 14 cylinders arranged in two rows. The R-2600-3 was originally intended for the C-46 Commando (being fitted to the prototype CW-20A). It was also the original engine choice for the F6F Hellcat; a running change (one which would not stop production) for the CW-20A, and one in late April 1942 for the second XF6F-1, led to the adoption of the Pratt & Whitney R-2800 Double Wasp in the R-2600's place for both designs. The Twin Cyclone went on to power several important American World War II aircraft, including the A-20 Havoc, B-25 Mitchell, TBF Avenger, SB2C Helldiver, and the PBM Mariner. Over 50,000 R-2600s were built at plants in Paterson, New Jersey, and Cincinna ...
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Douglas A-20 Havoc
The Douglas A-20 Havoc (company designation DB-7) is an American medium bomber, attack aircraft, Intruder (air combat), night intruder, night fighter, and reconnaissance aircraft of World War II. Designed to meet an Army Air Corps requirement for a bomber, it was ordered by France for their air force before the USAAC decided it would also meet their requirements. French DB-7s were the first to see combat; after the fall of France, the bomber served with the Royal Air Force under the British military aircraft designation systems#Names, service name Boston. From 1941, night fighter and Intruder (air combat), intruder versions were given the service name Havoc. In 1942 USAAF A-20s saw combat in North Africa. It served with several Allies of World War II, Allied air forces, principally the United States Army Air Forces (USAAF), the Soviet Air Forces (''VVS''), Soviet Naval Aviation (''AVMF''), and the Royal Air Force (RAF) of the United Kingdom. A total of 7,478 aircraft were built, ...
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Grumman TBF Avenger
The Grumman TBF Avenger (designated TBM for aircraft manufactured by General Motors) is an American World War II-era torpedo bomber developed initially for the United States Navy and Marine Corps, and eventually used by several air and naval aviation services around the world. The Avenger entered U.S. service in 1942, and first saw action during the Battle of Midway. Despite the loss of five of the six Avengers on its combat debut, it survived in service to become the most effective and widely-used torpedo bomber of World War II, sharing credit for sinking the super-battleships and (the only ships of that type sunk exclusively by American aircraft while under way) and being credited for sinking 30 submarines. Greatly modified after the war, it remained in use until the 1960s.Wheeler 1992, p. 53. Design and development The Douglas TBD Devastator, the U.S. Navy's main torpedo bomber introduced in 1935, was obsolescent by 1939. Bids were accepted from several companies, but Grum ...
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Curtiss SB2C Helldiver
The Curtiss SB2C Helldiver is a dive bomber developed by Curtiss-Wright during World War II. As a carrier-based bomber with the United States Navy (USN), in Pacific theaters, it supplemented and replaced the Douglas SBD Dauntless. A few survivors are extant. Initially poor handling characteristics and late modifications caused lengthy delays to production and deployment, to the extent that it was investigated by the Truman Committee, which turned in a scathing report. This contributed to the decline of Curtiss as a company. Neither pilots nor aircraft carrier skippers seemed to like it.Ethell 1995, p. 221. Nevertheless, the type was faster than the Dauntless, and by the end of the Pacific War, the Helldiver had become the main dive bomber and attack aircraft on USN carriers.Ethell 1995, p. 221. By the time a land-based variant, known as the A-25 Shrike, became available in late 1943, the Western Allied air forces had abandoned dedicated dive-bombers. A majority of A-25s deli ...
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Wright Aeronautical
Wright Aeronautical (1919–1929) was an American aircraft manufacturer headquartered in Paterson, New Jersey. It was the successor corporation to Wright-Martin. It built aircraft and was a supplier of aircraft engines to other builders in the golden age of aviation. Wright engines were used by Amelia Earhart and Charles Lindbergh. In 1929, the company merged with Curtiss Aeroplane and Motor Corporation to form Curtiss-Wright. History In 1916, the Wright brothers' original aviation firm, the Wright Company, merged with Glenn L. Martin's firm, the Glenn L. Martin Company of California, to form the Wright-Martin Aircraft Corporation. In September 1917, Martin resigned from Wright-Martin and re-formed an independent Glenn L. Martin Company of Ohio (later of Maryland). After World War I in 1919, Wright-Martin was renamed Wright Aeronautical. It moved to Paterson, New Jersey in 1919. In February 1919, an airplane with a Wright engine broke the world's speed record at 163 2–3 ...
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Grumman F6F Hellcat
The Grumman F6F Hellcat is an American Carrier-based aircraft, carrier-based fighter aircraft of World War II. Designed to replace the earlier Grumman F4F Wildcat, F4F Wildcat and to counter the Japanese Mitsubishi A6M Zero, it was the United States Navy's dominant fighter in the second half of the Pacific War. In gaining that role, it prevailed over its faster competitor, the Vought F4U Corsair, which initially had problems with visibility and carrier landings. Powered by a Pratt & Whitney R-2800 Double Wasp, the same powerplant used for both the Corsair and the United States Army Air Forces (USAAF) Republic P-47 Thunderbolt fighters, the F6F was an entirely new design, but it still resembled the Wildcat in many ways. Some military observers tagged the Hellcat as the "Wildcat's big brother".Sullivan 1979, p. 4. The F6F made its combat debut in September 1943. It subsequently established itself as a rugged, well-designed carrier fighter, which was able to outperform the A6M Zer ...
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Grumman F6F
The Grumman F6F Hellcat is an American carrier-based fighter aircraft of World War II. Designed to replace the earlier F4F Wildcat and to counter the Japanese Mitsubishi A6M Zero, it was the United States Navy's dominant fighter in the second half of the Pacific War. In gaining that role, it prevailed over its faster competitor, the Vought F4U Corsair, which initially had problems with visibility and carrier landings. Powered by a Pratt & Whitney R-2800 Double Wasp, the same powerplant used for both the Corsair and the United States Army Air Forces (USAAF) Republic P-47 Thunderbolt fighters, the F6F was an entirely new design, but it still resembled the Wildcat in many ways. Some military observers tagged the Hellcat as the "Wildcat's big brother".Sullivan 1979, p. 4. The F6F made its combat debut in September 1943. It subsequently established itself as a rugged, well-designed carrier fighter, which was able to outperform the A6M Zero and help secure air superiority over the ...
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Martin PBM Mariner
The Martin PBM Mariner was an American Maritime patrol aircraft, patrol bomber flying boat of World War II and the early Cold War era. It was designed to complement the Consolidated PBY Catalina and Consolidated PB2Y Coronado, PB2Y Coronado in service. A total of 1,366 PBMs were built, with the first example flying on 18 February 1939 and the type entering service in September 1940, with the last of the type being retired in 1964. Design and development In 1937 the Glenn L. Martin Company designed a new twin-engined flying boat, the Model 162, to succeed its earlier Consolidated P2Y, Martin P3M and complement the Consolidated PBY Catalina, PBY Catalina and Consolidated PB2Y Coronado, PB2Y Coronado. It received an order for a single prototype XPBM-1 on 30 June 1937.Swanborough and Bowers 1976, p. 318. This was followed by an initial Mass production, production order for 21 PBM-1 aircraft on 28 December 1937.Green 1968, p. 177. To test the PBM's layout, Martin built a ⅜ scale f ...
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Curtiss C-46 Commando
The Curtiss C-46 Commando is a twin-engine transport aircraft derived from the Curtiss CW-20 pressurised high-altitude airliner design. Early press reports used the name "Condor III" but the Commando name was in use by early 1942 in company publicity. It was used as a military transport during World War II by the United States Army Air Forces and also the U.S. Navy/Marine Corps, which called it R5C. The C-46 served in a similar role to its Douglas-built counterpart, the C-47 Skytrain, but it was not as extensively produced as the latter. After World War II, a few surplus C-46 aircraft were briefly used in their original role as passenger airliners but the glut of surplus C-47s dominated the marketplace and the C-46 was soon relegated to cargo duty. The type continued in U.S. Air Force service in a secondary role until 1968. The C-46 continues in operation as a rugged cargo transport for arctic and remote locations with its service life extended into the 21st century. Design and ...
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XB-33
The Martin XB-33 Super Marauder was a proposed World War II American bomber aircraft. It was designed by the Glenn L. Martin Company as the Martin Model 190 and was a high-altitude derivative of the company's B-26 Marauder. Two different designs were developed, first as a twin-engined aircraft and then as a four-engined aircraft. The four-engined version was ordered by the United States Army Air Forces, but the program was cancelled before any aircraft were built. Design and development XB-33 The first version of the B-33 design, the XB-33, was a twin-tailed medium bomber with two Wright R-3350 engines and pressurised crew compartments; its design began in 1940. It would carry around 4,000 lb (1,814 kg) of bombs. Soon after design of the XB-33 began it became clear that a twin-engined aircraft would not achieve the performance requested by the army. The company moved on to developing a larger four-engined design, the XB-33A. XB-33A Following the abandonment of th ...
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North American B-25 Mitchell
The North American B-25 Mitchell is an American medium bomber that was introduced in 1941 and named in honor of Major General William "Billy" Mitchell, a pioneer of U.S. military aviation. Used by many Allied air forces, the B-25 served in every theater of World War II, and after the war ended, many remained in service, operating across four decades. Produced in numerous variants, nearly 10,000 B-25s were built. These included several limited models such as the F-10 reconnaissance aircraft, the AT-24 crew trainers, and the United States Marine Corps' PBJ-1 patrol bomber. Design and development The Air Corps issued a specification for a medium bomber in March 1939 that was capable of carrying a payload of over at North American Aviation used its NA-40B design to develop the NA-62, which competed for the medium bomber contract. No YB-25 was available for prototype service tests. In September 1939, the Air Corps ordered the NA-62 into production as the B-25, along with the ...
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Brewster SB2A Buccaneer
The Brewster SB2A Buccaneer was a single-engined mid-wing monoplane scout/bomber aircraft built by the Brewster Aeronautical Corporation for the Royal Air Force (RAF) and United States Navy between 1942 and 1944. It was also supplied to the United States Army Air Forces and United States Marine Corps. The Buccaneer was overweight and lacked maneuverability, and has been described as a "classic failure"; while designed as a scout bomber, none saw combat, although a number found use in noncombat roles. The SB2A was developed for the US Navy, and also ordered in large quantities by the Dutch, French, and British Governments. The Dutch order was later taken over by the US Navy and the French order by Britain. An Australian order was cancelled before any of the type were delivered. The Buccaneer was underpowered and poorly constructed, and all of its operators considered it to be unsuitable for combat. SB2As were used as target tugs by the RAF and US Navy, trainers by the USMC, and "h ...
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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 future rad ...
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