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List Of Boeing B-17 Flying Fortress Variants
The following is an extensive catalogue of the variants and specific unique elements of each variant and/or design stage of the Boeing B-17 Flying Fortress, a heavy bomber used by the United States Army Air Forces and other Allies of World War II, Allied air forces during World War II. Boeing Model 299 (XB-17) The Model 299 was the original bomber design built by Boeing to fulfill an August 1934 requirement by the United States Army Air Corps for a bomber capable of carrying 2,000 lb (907 kg) of bombs 2,000 mi (3,218 km) at 200 mph (322 km/h).Hess & Winchester ''Wings of Fame'' No. 6, 1997, p. 41. The 299 was powered by four Pratt & Whitney R-1690 Hornet, Pratt & Whitney S1EG Hornet radial engines rated at each at , giving a maximum speed of and a maximum gross weight of . It carried a bomb load of eight bombs, with a defensive armament of five .30 caliber machine guns, with one in a nose turret and one each in dorsal and ventral mounts and two ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
B-17 On Bomb Run
The Boeing B-17 Flying Fortress is a four-engined heavy bomber developed in the 1930s for the United States Army Air Corps (USAAC). Relatively fast and high-flying for a bomber of its era, the B-17 was used primarily in the European Theater of Operations and dropped more bombs than any other aircraft during World War II. It is the third-most produced bomber of all time, behind the four-engined Consolidated B-24 Liberator and the multirole, twin-engined Junkers Ju 88. It was also employed as a transport, antisubmarine aircraft, drone controller, and search-and-rescue aircraft. In a USAAC competition, Boeing's prototype Model 299/XB-17 outperformed two other entries but crashed, losing the initial 200-bomber contract to the Douglas B-18 Bolo. Still, the Air Corps ordered 13 more B-17s for further evaluation, then introduced it into service in 1938. The B-17 evolved through numerous design advances but from its inception, the USAAC (later, the USAAF) promoted the aircraft a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2nd Bomb Group
The 2nd Bomb Wing is a United States Air Force unit assigned to the Air Force Global Strike Command and the Eighth Air Force. It is stationed at Barksdale Air Force Base, Louisiana. The wing is also the host unit at Barksdale. The wing was assigned to the Air Force Global Strike Command in February 2010 as part of the reassignment of Eighth Air Force. The 2 BW is one of only two B-52H Stratofortress wings in the United States Air Force, the other being the 5th Bomb Wing at Minot Air Force Base, North Dakota. Its 2d Operations Group is the oldest bomb group of the Air Force, having fought on the Western Front as the 1st Day Bombardment Group during World War I, entering combat on 12 September 1918. After the war, it participated in Brigadier General Billy Mitchell's 1921 off-shore bombing test. Active for over 60 years, the 2 BW was a component wing of Strategic Air Command (SAC)'s heavy bomber deterrent force throughout the Cold War. The 2d Bomb Wing is commanded b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Mary Ann - B-17 Filmed In Air Force - 1943
''The'' () is a grammatical article in English, denoting persons or things already mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the most frequently used word in the English language; studies and analyses of texts have found it to account for seven percent of all printed English-language words. It is derived from gendered articles in Old English which combined in Middle English and now has a single form used with pronouns of any gender. The word can be used with both singular and plural nouns, and with a noun that starts with any letter. This is different from many other languages, which have different forms of the definite article for different genders or numbers. Pronunciation In most dialects, "the" is pronounced as (with the voiced dental fricative followed by a schwa) when followed by a consonant sound, and as (homophone of pronoun ''thee'') when followed by a ... [...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] |
Turbocharger
In an internal combustion engine, a turbocharger (often called a turbo) is a forced induction device that is powered by the flow of exhaust gases. It uses this energy to compress the intake gas, forcing more air into the engine in order to produce more power for a given displacement. The current categorisation is that a turbocharger is powered by the kinetic energy of the exhaust gasses, whereas a supercharger is mechanically powered (usually by a belt from the engine's crankshaft). However, up until the mid-20th century, a turbocharger was called a "turbosupercharger" and was considered a type of supercharger. History Prior to the invention of the turbocharger, |
Cumulonimbus Cloud
Cumulonimbus (from Latin ''cumulus'', "heaped" and ''nimbus'', "rainstorm") is a dense, towering vertical cloud, typically forming from water vapor condensing in the lower troposphere that builds upward carried by powerful buoyant air currents. Above the lower portions of the cumulonimbus the water vapor becomes ice crystals, such as snow and graupel, the interaction of which can lead to hail and to lightning formation, respectively. When occurring as a thunderstorm these clouds may be referred to as thunderheads. Cumulonimbus can form alone, in clusters, or along squall lines. These clouds are capable of producing lightning and other dangerous severe weather, such as tornadoes, hazardous winds, and large hailstones. Cumulonimbus progress from overdeveloped cumulus congestus clouds and may further develop as part of a supercell. Cumulonimbus is abbreviated Cb. Appearance Towering cumulonimbus clouds are typically accompanied by smaller cumulus clouds. The cumulonimbus bas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boeing Y1B-17A
The Boeing Company () is an American multinational corporation that designs, manufactures, and sells airplanes, rotorcraft, rockets, satellites, telecommunications equipment, and missiles worldwide. The company also provides leasing and product support services. Boeing is among the largest global aerospace manufacturers; it is the third-largest defense contractor in the world based on 2020 revenue, and is the largest exporter in the United States by dollar value. Boeing stock is included in the Dow Jones Industrial Average. Boeing is incorporated in Delaware. Boeing was founded by William Boeing in Seattle, Washington, on July 15, 1916. The present corporation is the result of the merger of Boeing with McDonnell Douglas on August 1, 1997. Then chairman and CEO of Boeing, Philip M. Condit, assumed those roles in the combined company, while Harry Stonecipher, former CEO of McDonnell Douglas, became president and COO. The Boeing Company's corporate headquarters is in Chicago, Illi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
March Air Reserve Base
March Air Reserve Base (March ARB), previously known as March Air Force Base (March AFB) is located in Riverside County, California between the cities of Riverside, Moreno Valley, and Perris. It is the home to the Air Force Reserve Command's Fourth Air Force (4 AF) Headquarters and the host 452d Air Mobility Wing (452 AMW), the largest air mobility wing of the Fourth Air Force. In addition to multiple units of the Air Force Reserve Command supporting Air Mobility Command, Air Combat Command and Pacific Air Forces, March ARB is also home to units from the Army Reserve, Navy Reserve, Marine Corps Reserve, California Air National Guard and the California Army National Guard. For almost 50 years, March AFB was a Strategic Air Command base during the Cold War. The facility covers 2,075 acres (840 ha) of land., effective 23 May 2019. Units On 1 January 1994, the 722d Air Refueling Wing was activated at then-March AFB to replace the 22d Air Refueling Wing, which was moving to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Department Of War
The United States Department of War, also called the War Department (and occasionally War Office in the early years), was the United States Cabinet department originally responsible for the operation and maintenance of the United States Army, also bearing responsibility for naval affairs until the establishment of the Navy Department in 1798, and for most land-based air forces until the creation of the Department of the Air Force on September 18, 1947. The Secretary of War, a civilian with such responsibilities as finance and purchases and a minor role in directing military affairs, headed the War Department throughout its existence. The War Department existed from August 7, 1789 until September 18, 1947, when it split into the Department of the Army and the Department of the Air Force. The Department of the Army and Department of the Air Force later joined the Department of the Navy under the United States Department of Defense in 1949. History 18th century The Departme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interception Of The Rex
The interception of the ''Rex'' was a training exercise and military aviation achievement of the United States Army Air Corps prior to World War II. The tracking and location of an ocean-going vessel (the Italian liner ''SS Rex'') by B-17 Flying Fortresses on 12 May 1938 was a major event in the development of a doctrine that led to a United States Air Force independent of the Army. The mission was ostensibly a training exercise for coastal defense of the United States, but was conceived by planners to be a well-publicized demonstration of the capabilities of "heavy bombers (as) long range instruments of power". The flight was conducted during coastal defense maneuvers held by the Air Corps without the participation of the United States Navy, and apparently without understanding of their purpose by the Army Chief of Staff.Correll, "Rendezvous with the Rex", p. 55. Both had continuing disagreements with the leaders of the Air Corps over roles and missions, with the Navy disput ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Curtis LeMay
Curtis Emerson LeMay (November 15, 1906 – October 1, 1990) was an American Air Force general who implemented a controversial strategic bombing campaign in the Pacific theater of World War II. He later served as Chief of Staff of the U.S. Air Force, from 1961 to 1965. LeMay joined the U.S. Army Air Corps, the precursor to the U.S. Air Force, in 1929 while studying civil engineering at Ohio State University. He had risen to the rank of major by the time of Japan's Attack on Pearl Harbor in December 1941 and the United States's subsequent entry into World War II. He commanded the 305th Operations Group from October 1942 until September 1943, and the 3rd Air Division in the European theatre of World War II until August 1944, when he was transferred to the China Burma India Theater. He was then placed in command of strategic bombing operations against Japan, planning and executing a massive fire bombing campaign against Japanese cities and Operation Starvation, a crippling minel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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