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L-4
L4 or L-4 may refer to : Transportation * SP&S Class L-4, an 1884 steam locomotives class * USS ''L-4'' (SS-43), a 1915 United States Navy L-class submarine * HMS ''L4'', a 1918 British L class submarine * Lawson L-4, a 1924 American unflown biplane airliner * Piper Cub (U.S. military designation: L-4), an aircraft * Inline-four engine (L4), a type of inline internal combustion four cylinder engine ** Liberty L-4, a World War I four-cylinder, water-cooled, inline, aero-engine * Lynx Aviation (IATA code) * L4 (New York City bus), a temporary bus route in New York City * Chaika L-4, a Russian twin-engined amphibious aircraft * Soviet submarine L-4 Science and technology * L4 microkernel family, a family of operating system kernels *L4, the transport layer in the OSI model of computer communications * L4, the fourth Lagrangian point in an astronomical orbital configuration * L4, an Lp space for p=4 (sometimes called Lebesgue spaces) * L-4, the fourth iteration of L-carrier, hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piper Cub
The Piper J-3 Cub is an American light aircraft that was built between 1938 and 1947 by Piper Aircraft. The aircraft has a simple, lightweight design which gives it good low-speed handling properties and short-field performance. The Cub is Piper Aircraft's most-produced model, with nearly 20,000 built in the United States. Its simplicity, affordability and popularity invokes comparisons to the Ford Model T automobile. The aircraft is a high-wing, strut-braced monoplane with a large-area rectangular wing. It is most often powered by an air-cooled, flat-4 piston engine driving a fixed-pitch propeller. Its fuselage is a welded steel frame covered in fabric, seating two people in tandem. The Cub was designed as a trainer. It had great popularity in this role and as a general aviation aircraft. Due to its performance, it was well suited for a variety of military uses such as reconnaissance, liaison and ground control. It was produced in large numbers during World War II as the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chaika L-4
The Chaika L-4 (чайка, en, Seagull) is a twin engine amphibious aircraft, designed and built in Russia in the 2000s. It has sold in small numbers and remains in production. Design and development Several companies and groups have developed a series of designs which began at an offshoot of the Trod Kuznetsov aircraft engine plant in Samara. Beginning with the L-3, they differ in size and engine type but all are twin engine amphibians with a characteristic V tail. The L-4 is a direct development of the L-6M, promoted by AeroVolga. Its design began in August 2004. All L-4 variants have the same layout and all are largely built of composite materials. They are high-wing monoplanes with twin engines mounted close to the fuselage, on top of the wing. The wings have straight taper on both edges and almost square tips. The L-4 has a pair of flaps on each wing. Its hull has two steps and there are small winglets at waterlevel just aft of the trailing edge. The cabin extends fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USS L-4 (SS-43)
USS ''L-4'' (SS-43) was an L-class submarine of the United States Navy. Description The L-class boats designed by Electric Boat (''L-1'' to ''L-4'' and ''L-9'' to ''L-11'') were built to slightly different specifications from the other L boats, which were designed by Lake Torpedo Boat, and are sometimes considered a separate class. The Electric Boat submarines had a length of overall, a beam of and a mean draft of . They displaced on the surface and submerged. The L-class submarines had a crew of 28 officers and enlisted men. They had a diving depth of .Friedman, p. 307 For surface running, the Electric Boat submarines were powered by two diesel engines, each driving one propeller shaft. When submerged each propeller was driven by a electric motor. They could reach on the surface and underwater. On the surface, the boats had a range of at and at submerged.Gardiner & Gray, p. 129 The boats were armed with four 18-inch (450 mm) torpedo tubes in the bow. They ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lawson L-4
The Lawson L-4 was the last in a series of Lawson biplane airliners designed and built by Alfred Lawson under the livery of the Lawson Airplane Company of Milwaukee, Wisconsin. The largest of the series, it was designed for long-distance flights. It was completed in 1920 but never flew, crashing on its initial takeoff. Design and development After Alfred Lawson completed his 2000-mile Lawson L-2 flight, the Lawson Airplane Company built the Lawson Midnight Liner for use on the night service between Chicago and New York. The Midnight Liner was larger with three 400-hp Liberty engines – one on each wing and another in the nose. The airliner sported sleeping berths and a shower. It was his objective to produce large number of these aircraft to outfit his airline, but the 1920 recession deprived Lawson of the investment funds to meet payroll and other development expenses. The first and only Lawson Midnight Liner was completed on December 9, 1920. Bad weather, however, delayed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liberty L-4
Created in 1917, the Liberty L-4 was a four-cylinder water-cooled inline aircraft engine developed in the United States during World War I. The Liberty L-4 was an experimental engine of , which was built by the Hudson Motor Car Company and primarily intended for use in training airplanes. Only two examples were produced, since other types of engines were available and already in production. While the engine was ground-tested, it is unknown if the L-4 was ever test-flown. The L-4 was created as part of a US aircraft engine development effort which also created the six-cylinder Liberty L-6, eight-cylinder Liberty L-8 and twelve-cylinder Liberty L-12. Specifications See also References This article incorporates text from , a public domain work of the United States Government. * {{Aeroengine-specs 1910s aircraft piston engines Abandoned military aircraft engine projects of the United States Hudson Motor Car Company ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soviet Submarine L-4
The World War II Soviet submarine ''L-4'' belonged to the L class or of minelayer submarines. She had been named ''Garibaldets'' in honour of the men of Garibaldi. During the war she was commanded by Evgeniy Petrovich Polyakov (russian: Евгений Петрович Поляков). Service history For her service, the submarine was awarded the Order of the Red Banner. Among her victories was the torpedoing of the German tanker ''Friederike'' (formerly ''Firuz''), whose loss prevented her use during the Axis evacuation of Crimea during the Crimean Offensive. In 1944 ''Michman'' Ivan Perov was awarded Hero of the Soviet Union The title Hero of the Soviet Union (russian: Герой Советского Союза, translit=Geroy Sovietskogo Soyuza) was the highest distinction in the Soviet Union, awarded together with the Order of Lenin personally or collectively for .... Mines from ''L-4'' also damaged the German barge ''F-130''. During an artillery duel she damaged ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SP&S Class L-4
The Spokane, Portland and Seattle Railway (SP&S) class L-4 steam locomotives were originally used by the Astoria and Columbia River Railroad (AC&R). They became SP&S locomotives when the SP&S acquired the A&CR. Background The Astoria & Columbia River Railroad ran from Portland, Oregon, to Astoria, Oregon, along the south bank of the Columbia River. In 1896-97 several locomotives were obtained secondhand for the newly completed line. Among these locomotives were A&CR numbers 6 and 7. These locomotives would become the two members of Class L-4 when the SP&S bought out the A&CR in 1911. Numbering Upon the acquisition of the A&CR by the SP&S both locomotives were renumbered and placed into Class L-4. A&CR number 6 was renumbered SP&S number 53 on February 24, 1911. A&CR number 7 was renumbered SP&S number 54 on February 24, 1911. Disposition SP&S number 53 was sold to Warren CC on May 6, 1920. SP&S number 54 was dismantled in May 1924. References Rogers locom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
L-carrier
The L-carrier system was one of a series of carrier systems developed by AT&T for high-capacity transmission for long-distance communications. Over a period from the late 1930s to the 1970s, the system evolved in six significant phases of development, designated by Bell System engineers as L-1 through L-5, and L-5E. Coaxial cable was the principal transmission medium in all stages, initially lending the system another description i.e. the ''coaxial system''.E.L. Green, ''The Coaxial Cable System'', Bell Laboratories Record 15(9) p274 (May 1937) It was the successor to a series of previous carrier systems, typically identified by capital letters. In the 1960s the system was hardened against the dangers of the Cold War using complete placement of all terminal and repeater equipment in hardened underground vaults. Initial development and testing of the coaxial system took place between 1935 and 1937 on a test bed of a 95-mile two-way coaxial cable between locations in New York Cit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
L04 (other)
L04 may refer to: * Holtville Airport's FAA identifier * ATC code L04 Immunosuppressants, a subgroup of the Anatomical Therapeutic Chemical Classification System See also * L4 (other) {{Letter-NumberCombDisambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ISO/IEC 8859-4
ISO/IEC 8859-4:1998, ''Information technology — 8-bit single-byte coded graphic character sets — Part 4: Latin alphabet No. 4'', is part of the ISO/IEC 8859 series of ASCII-based standard character encodings, first edition published in 1988. It is informally referred to as Latin-4 or ''North European''. It was designed to cover Estonian, Latvian, Lithuanian, Greenlandic, and Sami. It has been largely superseded by ISO/IEC 8859-10 and Unicode. Microsoft has assigned code page 28594 a.k.a. Windows-28594 to ISO-8859-4 in Windows. IBM has assigned code page 914 (CCSID 914) to ISO 8859-4. ISO-8859-4 is the IANA preferred charset name for this standard when supplemented with the C0 and C1 control codes from ISO/IEC 6429 ISO/IEC JTC 1, entitled "Information technology", is a joint technical committee (JTC) of the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). Its purpose is to develop, maintain and p .... ISO-IR 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bren Light Machine Gun
The Bren gun was a series of light machine guns (LMG) made by Britain in the 1930s and used in various roles until 1992. While best known for its role as the British and Commonwealth forces' primary infantry LMG in World War II, it was also used in the Korean War and saw service throughout the latter half of the 20th century, including the 1982 Falklands War. Although fitted with a bipod, it could also be mounted on a tripod or be vehicle-mounted. The Bren gun was a licensed version of the Czechoslovak ZGB 33 light machine gun which, in turn, was a modified version of the ZB vz. 26, which British Army officials had tested during a firearms service competition in the 1930s. The later Bren gun featured a distinctive top-mounted curved box magazine, conical flash hider, and quick change barrel. The name ''Bren'' was derived from Brno, the Czechoslovak city in Moravia, where the Zb vz. 26 was designed (in the Zbrojovka Brno Factory) and Enfield, site of the British Royal Small A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caenorhabditis Elegans
''Caenorhabditis elegans'' () is a free-living transparent nematode about 1 mm in length that lives in temperate soil environments. It is the type species of its genus. The name is a blend of the Greek ''caeno-'' (recent), ''rhabditis'' (rod-like) and Latin ''elegans'' (elegant). In 1900, Maupas initially named it '' Rhabditides elegans.'' Osche placed it in the subgenus ''Caenorhabditis'' in 1952, and in 1955, Dougherty raised ''Caenorhabditis'' to the status of genus. ''C. elegans'' is an unsegmented pseudocoelomate and lacks respiratory or circulatory systems. Most of these nematodes are hermaphrodites and a few are males. Males have specialised tails for mating that include spicules. In 1963, Sydney Brenner proposed research into ''C. elegans,'' primarily in the area of neuronal development. In 1974, he began research into the molecular and developmental biology of ''C. elegans'', which has since been extensively used as a model organism. It was the first multicellu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
