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Maybach VL II
The Maybach VL II was a type of internal combustion engine built by the German company Maybach in the late 1920s and 1930s. It was an uprated development of the successful Maybach VL I, and like the VL I, was a 60° V-12 engine. Five of them powered the German airship '' Graf Zeppelin'', housed in separate nacelles. The engines developed and were of capacity. They could burn either Blau gas or petrol. The American USS ''Akron'' used eight of them, mounted internally, as did its sister ship ''Macon''. The engines were reversible, meaning different cams could be engaged allowing the engine crankshaft to run in either direction, enabling reverse thrust. Lürssen built the fast yacht ''Oheka II'' in 1927; powered by three VL IIs, it was the fastest vessel of its type and became the basis of Germany's E-boat E-boat was the Western Allies' designation for the fast attack craft (German: ''Schnellboot'', or ''S-Boot'', meaning "fast boat") of the Kriegsmarine during World War II; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maybach
Maybach (, ) is a Automotive industry in Germany, German luxury car brand that exists today as a part of Mercedes-Benz. The original company was founded in 1909 by Wilhelm Maybach and his son Karl Maybach, originally as a subsidiary of ''Luftschiffbau Zeppelin GmbH'', and it was known as ''Luftfahrzeug-Motorenbau GmbH'' until 1999. In 1960, Maybach was acquired by Daimler-Benz. The name returned as a standalone Luxury vehicle#Ultra-luxury, ultra-luxury car brand in 2002, sharing significant components with Mercedes-Benz cars. After slow sales, Maybach ceased to be a standalone brand by 2013, and it became (in 2015) a sub-brand of Mercedes-Benz, which is owned by the Mercedes-Benz Group. , Daimler produces an Mercedes-Maybach S600, ultra-luxury edition of the Mercedes-Benz S-Class and Mercedes-Benz GLS-Class under the Mercedes-Maybach name. 1909–1940: Early history Wilhelm Maybach was technical director of the ''Daimler-Motoren-Gesellschaft'' (DMG) until he left in 1907. On 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LZ 127 Graf Zeppelin
LZ 127 ''Graf Zeppelin'' () was a German passenger-carrying, hydrogen-filled rigid airship that flew from 1928 to 1937. It offered the first commercial transatlantic passenger flight service. Named after the German airship pioneer Ferdinand von Zeppelin, a count () in the German nobility, it was conceived and operated by Dr. Hugo Eckener, the chairman of Luftschiffbau Zeppelin. ''Graf Zeppelin'' made 590 flights totalling almost 1.7 million kilometres (over 1 million miles). It was operated by a crew of 36, and could carry 24 passengers. It was the longest and largest airship in the world when it was built. It made the first circumnavigation of the world by airship, and the first nonstop crossing of the Pacific Ocean by air; its range was enhanced by its use of Blau gas as a fuel. It was built using funds raised by public subscription and from the German government, and its operating costs were offset by the sale of special postage stamps to collectors, the support of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USS Akron
USS ''Akron'' (ZRS-4) was a helium-filled rigid airship of the U.S. Navy, the lead ship of her class, which operated between September 1931 and April 1933. It was the world's first purpose-built flying aircraft carrier, carrying F9C Sparrowhawk fighter planes, which could be launched and recovered while it was in flight. With an overall length of , ''Akron'' and her sister ship were among the largest flying objects ever built. Although LZ 129 ''Hindenburg'' and LZ 130 ''Graf Zeppelin II'' were some longer and slightly more voluminous, the two German airships were filled with hydrogen, and so the two US Navy craft still hold the world record for the largest helium-filled airships. ''Akron'' was destroyed in a thunderstorm off the coast of New Jersey on the morning of 4 April 1933, killing 73 of the 76 crewmen and passengers. The accident involved the greatest loss of life in any airship crash. Technical description The airship's skeleton was built of the new lightweight ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USS Macon (ZRS-5)
USS ''Macon'' (ZRS-5) was a rigid airship built and operated by the United States Navy for scouting and served as a "flying aircraft carrier", designed to carry biplane parasite aircraft, five single-seat Curtiss F9C Sparrowhawk for scouting or two-seat Fleet N2Y-1 for training. In service for less than two years, in 1935 the ''Macon'' was damaged in a storm and lost off California's Big Sur coast, though most of the crew were saved. The wreckage is listed as the USS ''Macon'' Airship Remains on the U.S. National Register of Historic Places. Less than shorter than ''Hindenburg'', both ''Macon'' and her sister ship were among the largest flying objects in the world in terms of length and volume. Although both of the hydrogen-filled, Zeppelin-built ''Hindenburg'' and LZ 130 ''Graf Zeppelin II'' were longer, the two American-built sister naval airships still hold the world record for helium-filled rigid airships. Construction USS ''Macon'' was built at the Goodyear Airdock ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maybach VL I
The Maybach VL I was an Otto cycle V-12 engine, made from 1924 in Germany. The airship LZ 126 was powered by five VL I engines which emphasised reliability and low fuel consumption. Technical description The VL I was a V-12 liquid-cooled four-stroke Otto cycle engine, with individual grey cast iron cylinders, with a cylinder bore of , piston stroke of , and displacement of . The crankshaft was supported in roller-bearings and was fitted with a vibration damper for smooth operation. The overhead valves An overhead valve (OHV) engine, sometimes called a ''pushrod engine'', is a piston engine whose valves are located in the cylinder head above the combustion chamber. This contrasts with earlier flathead engines, where the valves were located bel ..., one large inlet valve and two smaller outlet valves per cylinder, were operated by a camshaft running between the cylinder banks, operating the valves with tappets, pushrods and rocker arms. The majority of the ancillary equi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Internal Combustion Engine
An internal combustion engine (ICE or IC engine) is a heat engine in which the combustion of a fuel occurs with an oxidizer (usually air) in a combustion chamber that is an integral part of the working fluid flow circuit. In an internal combustion engine, the expansion of the high-temperature and high-pressure gases produced by combustion applies direct force to some component of the engine. The force is typically applied to pistons ( piston engine), turbine blades (gas turbine), a rotor (Wankel engine), or a nozzle ( jet engine). This force moves the component over a distance, transforming chemical energy into kinetic energy which is used to propel, move or power whatever the engine is attached to. This replaced the external combustion engine for applications where the weight or size of an engine was more important. The first commercially successful internal combustion engine was created by Étienne Lenoir around 1860, and the first modern internal combustion engine, known ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nacelle
A nacelle ( ) is a "streamlined body, sized according to what it contains", such as an engine, fuel, or equipment on an aircraft. When attached by a pylon entirely outside the airframe, it is sometimes called a pod, in which case it is attached with a pylon or strut and the engine is known as a podded engine. In some cases—for instance in the typical "Farman" type "pusher" aircraft, or the World War II-era P-38 Lightning—an aircraft cockpit may also be housed in a nacelle, rather than in a conventional fuselage. Etymology Like many aviation terms, the word comes from French, in this case from a word for a small boat. Development The development of the Arado Ar 234, merging the four nacelles into two The Arado Ar 234 was one of the first operational jet aircraft with engines mounted in nacelles. During its development, the four jet engines were merged from having four distinct nacelles, all of which contained their own landing gear wheel, to two nacelles with two engi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blau Gas
Blau gas (german: Blaugas) is an artificial illuminating gas, similar to propane, named after its inventor, Hermann Blau of Augsburg, Germany. Not or rarely used or produced today, it was manufactured by decomposing mineral oils in retorts by heat, and compressing the resulting naphtha until it liquefied. It was transported in liquid condition, and, like LPG, when released returns to a gaseous state. Blau gas has a rather water-like color. It was historically stored in steel cylinders for shipment, and, around the turn of the century, had the advantage of possessing the highest specific energy of all artificially produced gases. Chemically, Blau gas is similar to coal gas, but, unlike coal gas, is free from carbon monoxide. Furthermore, Blau gas is difficult to bring to explosion. Blau gas was burned for lighting and heating; a less-pure form known as Pintsch gas fuelled illuminated buoys and beacons (for navigation), railroad car lights and stoves in the late 19th and ear ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gasoline
Gasoline (; ) or petrol (; ) (see ) is a transparent, petroleum-derived flammable liquid that is used primarily as a fuel in most spark-ignited internal combustion engines (also known as petrol engines). It consists mostly of organic compounds obtained by the fractional distillation of petroleum, enhanced with a variety of additives. On average, U.S. refineries produce, from a barrel of crude oil, about 19 to 20 gallons of gasoline; 11 to 13 gallons of distillate fuel (most of which is sold as diesel fuel); and 3 to 4 gallons of jet fuel. The product ratio depends on the processing in an oil refinery and the crude oil assay. A barrel of oil is defined as holding 42 US gallons, which is about 159 liters or 35 imperial gallons. The characteristic of a particular gasoline blend to resist igniting too early (which causes knocking and reduces efficiency in reciprocating engines) is measured by its octane rating, which is produced in several grades. Tetraethyl lead and o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lürssen
Lürssen (or Lürssen Werft) is a German shipyard with headquarters in Bremen-Vegesack and shipbuilding facilities in Lemwerder, Berne and Bremen-Fähr-Lobbendorf. Lürssen designs and constructs yachts, naval ships and special vessels. Trading as Lürssen Yachts, it is one of the leading builders of custom superyachts such as Paul Allen's ''Octopus'', David Geffen's ''Rising Sun'', and Khalifa bin Zayed Al Nahyan's ''Azzam'', the second largest private yacht in the world at 180 m in length after the REV Ocean''. History On 27 June 1875 the 24 year-old Friedrich Lürssen set up a boatbuilding workshop in Aumund, a suburb of Bremen, Germany. The focus of work in the first years was on work boats for fishing and ferry operations. Hull number one was a five meter long rowboat. From the 1880s Lürssen opened up the sport boat market. In 1886 the first motorboat in the world was built by Lürssen (according to his own account).''Kölner Stadt-Anzeiger''. 16. September 2011, P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oheka II
''Oheka II'' was a private motor yacht built for German-born American investment banker Otto Hermann Kahn by Lürssen in 1927. Capable of 34 knots top speed, she became the blueprint for the Kriegsmarine's Schnellboot. "Oheka" is an acronym of letters from Kahn's full name, Otto Herman Kahn. He had previously named his New York estate, built on Long Island between 1914 and 1919, Oheka. ''Oheka II'' Born in 1867 in Mannheim and relocated to the United States in 1893, Otto Hermann Kahn was an American-based investment banker, collector, philanthropist, and patron of the arts. Kahn approached German boatbuilder Lürssen in 1926 to build a high-speed motor launch capable of use on holidays upon both the River Rhine and the North Sea. German boat builders at the time were used to building sleek displacement hull cruising boats for the Rhine, which to create a smooth ride were round bottomed. However, the problem this creates is a greater depth in the water, and a resultant increase ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
E-boat
E-boat was the Western Allies' designation for the fast attack craft (German: ''Schnellboot'', or ''S-Boot'', meaning "fast boat") of the Kriegsmarine during World War II; ''E-boat'' could refer to a patrol craft from an armed motorboat to a large ''Torpedoboot.'' The name of E-boats was a British designation using the letter ''E'' for ''Enemy'', The main wartime production boats, the ''S-100'' class, were very seaworthy, heavily armed and capable of sustaining , briefly accelerating to . These were armed with torpedoes and Flak guns; commonly one 37 mm at the stern, one 20 mm at the bow with a twin mount amidships, plus machine guns. Armament varied and some ''S-100''s substituted a 40mm Bofors or, less commonly, a 20mm ''flakvierling'' mount for the aft 37mm cannon. The ''S-100''-class boats were long and in beam. Their diesel engines provided a range of , substantially greater than the gasoline-fueled American PT boats and British motor torpedo boats (MTBs). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
