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Continental R-670
The Continental R-670 (factory designation W670) was a seven-cylinder four-cycle radial aircraft engine produced by Continental displacing 668 cubic inches (11 litres) and a dry weight of . Horsepower varied from 210 to 240 at 2,200 rpm. The engine was the successor to Continental's first radial engine, the 170 hp Continental A-70. This engine was used on many aircraft in the 1930s and 1940s. The R-670 was widely used in the PT-17 Stearman primary training aircraft of the U.S. military.Gunston 1989, p.42. In addition to being used in aircraft, the R-670 was used in a number of light armored vehicles of World War II. Variants ''Data from:'' Jane's All the World's Aircraft 1938 Variants of the W670 included: ;W670-K:carburetor, 5.4:1 compression, 65 Octane, front exhausts and ;W670-L:carburetor, 5.4:1 compression, 73 Octane, rear exhausts and ;W670-M:carburetor, 6.1:1 compression, 80 Octane, front exhausts and ;W670-N:carburetor, 6.1:1 compression, 80 Octane, rear exhausts ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aircraft Engine
An aircraft engine, often referred to as an aero engine, is the power component of an aircraft propulsion system. Most aircraft engines are either piston engines or gas turbines, although a few have been rocket powered and in recent years many small UAVs have used electric motors. Manufacturing industry In commercial aviation the major Western manufacturers of turbofan engines are Pratt & Whitney (a subsidiary of Raytheon Technologies), General Electric, Rolls-Royce, and CFM International (a joint venture of Safran Aircraft Engines and General Electric). Russian manufacturers include the United Engine Corporation, Aviadvigatel and Klimov. Aeroengine Corporation of China was formed in 2016 with the merger of several smaller companies. The largest manufacturer of turboprop engines for general aviation is Pratt & Whitney. General Electric announced in 2015 entrance into the market. Development history * 1848: John Stringfellow made a steam engine for a 10-foot wingspan mod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kellett K-2
The Kellett K-2 was a two-seat autogyro developed in the United States in the early 1930s. Later examples were designated K-3 and K-4 when equipped with more powerful engines. K-3 NC 12691 is seen in the 1934 movie, '' It Happened One Night''. Design and development In design, it was similar to the Cierva and Pitcairn autogyros of the day; an airplane-like fuselage with a nose-mounted engine, surmounted by a rotor mast. Like some of Cierva's designs, the K-2 also featured stubby fixed wings for additional lift, also as a mount for ailerons for lateral control. The pilot and a single passenger sat side by side in an open cockpit, although a folding canopy (similar to that of a convertible automobile) was available as an optional extra. The first flight took place on April 24, 1931, and certification by the Department of Commerce was granted on May 27. Kellett built a batch of 12 K-2s, and the type was evaluated by the United States Army as a slow-flying reconnaissance machi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Landing Vehicle Tracked
The Amphibious Vehicle, Tracked (LVT) is an amphibious warfare vehicle and amphibious landing craft, introduced by the United States Navy and United States Marine Corps. (The USN and USMC use "L" to designate Amphibious vessels, also called "L class.") The United States Army, Canadian Army and British Army used several LVT models during World War II, and referred to those vehicles as "Landing Vehicle, Tracked." Originally intended solely as cargo carriers for ship to shore operations, they evolved into assault troop and fire support vehicles. The types were known as amphtrack, "amtrak", "amtrac", etc. (portmanteaus of "amphibious tractor"), and "alligator" or "gator." Development The Alligator The LVT had its origins in a civilian rescue vehicle called the ''Alligator''. Developed by Donald Roebling in 1935, the Alligator was intended to operate in swampy areas, inaccessible to both traditional cars and boats. Two years later, Roebling built a redesigned vehicle wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
M1 Combat Car
The M1 Combat Car, officially Light Tank, M1, was a light tank used by the U.S. Cavalry in the late 1930s and developed at the same time as the infantry's very similar M2 light tank. After the Spanish Civil War, most armies, (including the U.S. Army), realized that they needed tanks armed with cannons, not merely vehicles armed with machine guns, and so the M1 became obsolete. History and development The National Defense Act of 1920 set tanks as the responsibility of the infantry and the general staff defined the purpose of tanks as the support of infantry units. Light tanks were defined as weighing five tons or less – so they could be carried by trucks – and medium tanks no greater than 15 tons to meet bridge weight limits. With very tight restrictions on spending, tank development in the U.S. was limited to a couple of test vehicles a year. The mechanization of the army was promoted by General Douglas MacArthur (Chief of Staff of the US Army) who believed that the cavalry ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
T4 Combat Car
T4 or T-4 may refer to: Airports and airlines * Heathrow Terminal 4 * Tiyas Military Airbase, also known as the T-4 Airbase Biology and medicine * T4 phage, a bacteriophage * Thyroxine (T4), a form of thyroid hormone * the T4 spinal nerve * the fourth thoracic vertebrae of the vertebral column * A non-small cell lung carcinoma staging for a type of tumour * A CD4 + T lymphocyte * T4: an EEG electrode site according to the 10-20 system Entertainment * ''T4'' (Channel 4), the former daytime teen-aimed slot on Channel 4 in the UK * ''Terminator Salvation'', sometimes referred to as ''Terminator 4'' * '' Transformers: Age of Extinction'', the fourth film in the live-action ''Transformers'' film series Computing * SPARC T4, a microprocessor introduced by Oracle Microelectronics in 2011 Software and video games * Text Template Transformation Toolkit, a technology developed by Microsoft * ''Tekken 4'', a fighting game Electricity production * Lockheed Martin's High beta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
T2 Combat Car
T, or t, is the twentieth letter in the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is ''tee'' (pronounced ), plural ''tees''. It is derived from the Semitic Taw 𐤕 of the Phoenician and Paleo-Hebrew script (Aramaic and Hebrew Taw ת/𐡕/, Syriac Taw ܬ, and Arabic ت Tāʼ) via the Greek letter τ (tau). In English, it is most commonly used to represent the voiceless alveolar plosive, a sound it also denotes in the International Phonetic Alphabet. It is the most commonly used consonant and the second most commonly used letter in English-language texts. History '' Taw'' was the last letter of the Western Semitic and Hebrew alphabets. The sound value of Semitic ''Taw'', Greek alphabet Tαυ (''Tau''), Old Italic and Latin T has remained fairly constant, representing in each of these; and it has also kept its original basic shape in most of these alphabets. Use in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waco F Series
The Waco F series is a series of American-built general aviation and military biplane trainers of the 1930s from the Waco Aircraft Company. Development The Waco 'F' series of biplanes supplanted and then replaced the earlier 'O' series of 1927/33. The 'F' series had an airframe which was smaller and about lighter than the 'O' series, while continuing to provide accommodation for three persons in tandem open cockpits. A similar performance to the earlier model was obtained on the power of smaller and more economical engines.Simpson 2001, p. 573 The initial models were the INF ( Kinner engine), KNF ( Kinner) and the RNF ( Warner Scarab), all of which had externally braced tailwheel undercarriages. Many further sub-models followed with more powerful engines of up to . The most powerful in the range was the ZPF of 1936/37, intended for executive use. Operational history The 'F' series was popular with private owner pilots for sporting and other uses and continued in prod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waco A Series
The Waco A series is a range of light American-built twin side-by-side seater sporting biplanes of the early 1930s. Development The Waco A series was introduced in 1932 as an affordable private-owner aircraft with cross-country range and baggage capacity and a more sporting image than the larger Waco F series. The A series offered a number of engine options which had varying sub-designations. The power range lay between the KBA with a Kinner engine and the later UBA with a Continental powerplant. The PLA "Sportsman" of 1933 introduced a longer wider fuselage and a higher useful load and had a Jacobs LA-1 radial engine. The last model in the series was the ULA, also of 1933, with a powerplant. Operational history The A series was bought mainly by private pilot owners with a sporting inclination. Relatively few were produced and the type survives in small numbers in 2009. A PBA is on display in the Historic Aircraft Restoration Museum at Dauster Field near St Louis, Missouri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waco Custom Cabin Series
The Waco Custom Cabins were a series of up-market single-engined four-to-five-seat cabin sesquiplanes of the late 1930s produced by the Waco Aircraft Company of the United States. "Custom Cabin" was Waco's own description of the aircraft which despite minor differences, were all fabric-covered biplanes. Design Nearly all of the Waco Custom Cabins were powered by radial engines (there being one factory-built exception, the MGC-8) and the purchaser could specify almost any commercially available engine and Waco would build an aircraft powered by it, hence the profusion of designations, as the first letter indicates the engine installed. Some models were offered in case someone wanted a specific engine but not all were built. Fuselage structure was typical for the period, being welded steel tubing with light wood strips to fair the shape in. The wings were made of spruce with two spars each, having ailerons on only the upper wings, mounted on a false spar. Split flaps were installed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waco Standard Cabin Series
The Waco Standard Cabin series is a range of American single-engine 4–5 seat fabric covered cabin biplanes produced by the Waco Aircraft Company beginning in 1931 with the QDC and continuing until 1942 when production ended for the VKS-7F.Brandley, 1981, p.76 They were used as light passenger and utility transports, navigational trainers, bushplanes and briefly as maritime reconnaissance aircraft during World War 2. Design All of the Waco Standard Cabins were powered by cowled radial engines and Waco tried to accommodate their customers preferences for many of the more common commercially available engines of the period, hence the profusion of designations, as the first letter indicates the engine installed. Individual models were each certified with various available engines but not all variations found customers. Fuselage structure was typical for the period, being welded chrome-moly tubing with light wood strips to fair the shape in and covered with fabric.Juptner, 1962, pp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
