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Johnson Bar (vehicle)
A Johnson bar is a hand lever with several distinct positions and a positive latch to hold the lever in the selected position. The latch is typically activated with a spring-loaded squeeze handle on the lever so that only one hand is needed to release the latch, move the lever, then re-engage the latch in a different position. This is an American English term; in British English, the lever is named for its function. Many steam locomotives have valve gear controls which are set using a Johnson bar. This is referenced in Fred Eaglesmith's song ''Back There'': "Hey Porter, tell that engineer, tell him this train's too slow. Tell him to let go that Johnson bar. I got places I got to go." Many trucks and buses use a hand brake which is controlled with a Johnson bar. These are sometimes called "Johnson bar brakes". Truck drivers call the lever control for air-operated trailer brakes "Johnson bars". On Caterpillar tractors, the forward/reverse lever is also called a Johnson bar. So ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cessna 162 Skycatcher
The Cessna 162 Skycatcher is an American side-by-side two-seat, high-wing, strut-braced, tricycle gear light-sport aircraft (LSA) that was designed and produced by Cessna between December 2009 and December 2013. Its intended market was flight training and personal use.Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011–12'', page 34. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X The Skycatcher received its ASTM LSA approval in July 2009. At one time 1200 Skycatchers had been ordered, but the aircraft did not meet customer expectations and only 192 aircraft had been sold before production ended in 2013. The remaining 80 unsold aircraft were used for parts until December 2016 when the remaining aircraft were scrapped. Development Cessna had announced its intentions to study the feasibility of developing and producing an LSA on 6 June 2006. The concept design was unveiled on 24 July 2006 at EAA AirVenture Oshkosh as the ''Cessna LSA'' (also ref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reversing Gear
On a steam locomotive, the reversing gear is used to control the direction of travel of the locomotive. It also adjusts the cutoff of the steam locomotive. Reversing lever This is the most common form of reverser. It consists of a long lever mounted, parallel to the direction of travel, on the driver’s side of the cab. It has a handle and sprung trigger at the top and is pivoted at the bottom so as to pass between two notched sector plates. The reversing rod, which connects to the valve gear, is attached to this lever, either above or below the pivot, in such a position as to give good leverage. A square pin is arranged so as to engage with the notches in the plates and hold the lever in the desired position when the trigger is released. The advantages of this design are that change between forward and reverse gear can be made very quickly as is needed in, for example, a shunting engine. Disadvantages are that, because the lever must rest at one of the notches, fine adjustment ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cutoff (steam Engine)
In a steam engine, cutoff is the point in the piston stroke at which the inlet valve is closed. On a steam locomotive, the cutoff is controlled by the reversing gear. The point at which the inlet valve closes and stops the entry of steam into the cylinder from the boiler plays a crucial role in the control of a steam engine. Once the valve has closed, steam trapped in the cylinder expands adiabatically. The steam pressure drops as it expands. A late cutoff delivers full steam pressure to move the piston through its entire stroke, for maximum start-up forces. But, since there will still be unexploited pressure in the cylinder at the end of the stroke, this is achieved at the expense of engine efficiency. In this situation the steam will still have considerable pressure remaining when it is exhausted resulting in the characteristic “chuff chuff” sound of a steam engine. An early cutoff has greater thermodynamic efficiency but results in a lower Mean effective pressure so less ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boeing 707/720
The Boeing 707 is an American, long-range, narrow-body airliner, the first jetliner developed and produced by Boeing Commercial Airplanes. Developed from the Boeing 367-80 prototype first flown in 1954, the initial first flew on December 20, 1957. Pan American World Airways began regular 707 service on October 26, 1958. With versions produced until 1979, the 707 was a swept wing, quadjet with podded engines. Its larger fuselage cross-section allowed six-abreast economy seating, retained in the later 720, 727, 737, and 757 models. Although it was not the first commercial jetliner in service, the 707 was the first to be widespread and is often credited with beginning the Jet Age. It dominated passenger air transport in the 1960s, and remained common through the 1970s, on domestic, transcontinental, and transatlantic flights, as well as cargo and military applications. It established Boeing as a dominant airliner manufacturer with its 7x7 series. The initial, was powered b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Progressive Aerodyne SeaRey
The Progressive Aerodyne SeaRey is an American two-seat, single-engine, amphibious flying boat designed and manufactured by Progressive Aerodyne originally in Orlando, Florida, and now in Tavares, Florida. It was first flown in November 1992 and is sold as a kit aircraft for amateur construction as well as a light-sport aircraft.Vandermeullen, Richard: ''2012 Kit Aircraft Buyer's Guide'', Kitplanes, Volume 28, Number 12, December 2011, p. 66 Belvoir Publications. ISSN 0891-1851Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011–12'', p. 70. WDLA UK, Lancaster UK, 2011. ISSN 1368-485XPurdy, Don: ''AeroCrafter – Homebuilt Aircraft Sourcebook, Fifth Edition'', p. 225. BAI Communications, 15 July 1998. Tacke, Willi; Marino Boric; et al: ''World Directory of Light Aviation 2015–16'', p. 70. Flying Pages Europe SARL, 2015. Development Development of the aircraft that became the SeaRey began in the 1970s with the introduction of the Advanced Av ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mooney M20
The Mooney M20 is a family of piston-powered, four-seat, propeller-driven, general aviation aircraft, all featuring low wings and tricycle gear, manufactured by the Mooney International Corporation.Munson, Kenneth & Michael Taylor: ''Jane's Pocket Book of light Aircraft'', page 143. Janes Publishing, 1982. Montgomery, M.R & Gerald Foster: ''A Field Guide to Airplanes, Second Edition'', page 38-39. Houghton Mifflin Company, 1992. Plane and Pilot: ''1978 Aircraft Directory'', pages 54–55. Werner & Werner Corp, Santa Monica CA, 1977. The M20 was the 20th design from Al Mooney, and his most successful. The series has been produced in many variations over the last 60 years, from the wooden-wing M20 and M20A models of 1955, to the M20V Acclaim Ultra that debuted in 2016. More than 11,000 aircraft in total have been produced. In November 2008, the company announced that it was halting all production as a result of the late-2000s recession, but would still provide parts and suppo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mooney Mite M-18
The Mooney M-18 "Mite" is a low-wing, single-place monoplane with retractable, tricycle landing gear.M.R. Montgomery & Gerald Foster: ''A Field Guide to Airplanes - Second Edition'', p. 46. Houghton Milflin Company 1992. Plane and Pilot: ''1978 Aircraft Directory'', p. 53. Werner & Werner Corp Publishing, 1978. The Mite was designed by Al Mooney and was intended as a personal airplane marketed to fighter pilots returning from World War II. Development The M-18 design goal was extremely low operating costs. The Mite is constructed mainly of fabric-covered wood, with a single spruce and plywood "D" wing spar. The wing aft of the spar is fabric-covered. The airfoil selected for the design was the NACA 64A215. The M-18 represented the first time a NACA 6-series airfoil had been used on a civil aircraft after World War II. The aircraft featured a unique "safe-trim" system. This mechanical device links the wing flaps to the tail trim system and automatically adjusts the horizont ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mooney Aircraft Company
The Mooney International Corporation (formerly Mooney Aviation Company, Inc. and the Mooney Aircraft Company) is an American aircraft manufacturer based in Kerrville, Texas, United States. It manufactures single-engined piston-powered general aviation aircraft. Through its history the company has had many American owners and subsequent bankruptcies. Mooney International was purchased in 2013 by a Chinese private equity, real-estate development company, the Meijing Group who ran it until 2020, when it was purchased by a group of Mooney aircraft owners under US Financial, LLC of Wyoming. Among Mooney's achievements are: the first pressurized single-engined, piston-powered aircraft, the M22 Mustang, production of the fastest civilian single-engine piston-powered aircraft in the world, the M20TN Acclaim Type S, the first production aircraft to achieve on , the M20J 201 and the fastest transcontinental flight in a single-engine piston-powered production aircraft, the M20K 231 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cessna
Cessna () is an American brand of general aviation aircraft owned by Textron Aviation since 2014, headquartered in Wichita, Kansas. Originally, it was a brand of the Cessna Aircraft Company, an American general aviation aircraft manufacturing corporation also headquartered in Wichita. The company produced small, piston-powered aircraft, as well as business jets. For much of the mid-to-late 20th century, Cessna was one of the highest-volume and most diverse producers of general aviation aircraft in the world. It was founded in 1927 by Clyde Cessna and Victor Roos and was purchased by General Dynamics in 1985, then by Textron, Inc. in 1992. In March 2014, when Textron purchased the Beechcraft and Hawker Aircraft corporations, Cessna ceased operations as a subsidiary company and joined the others as one of the three distinct brands produced by Textron Aviation. Throughout its history, and especially in the years following World War II, Cessna became best-known for producing hig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steam Locomotive
A steam locomotive is a locomotive that provides the force to move itself and other vehicles by means of the expansion of steam. It is fuelled by burning combustible material (usually coal, oil or, rarely, wood) to heat water in the locomotive's boiler to the point where it becomes gaseous and its volume increases 1,700 times. Functionally, it is a steam engine on wheels. In most locomotives, the steam is admitted alternately to each end of its cylinders, in which pistons are mechanically connected to the locomotive's main wheels. Fuel and water supplies are usually carried with the locomotive, either on the locomotive itself or in a tender coupled to it. Variations in this general design include electrically-powered boilers, turbines in place of pistons, and using steam generated externally. Steam locomotives were first developed in the United Kingdom during the early 19th century and used for railway transport until the middle of the 20th century. Richard Trevithick ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beechcraft Musketeer
The Beechcraft Musketeer is a family of single-engined, low-wing, light aircraft that was produced by Beechcraft. The line includes the Model 19 Musketeer Sport, the Model 23 Musketeer, Custom and Sundowner, the Model 23-24 Musketeer Super III the retractable gear Model 24-R Sierra and the military CT-134 Musketeer. The Musketeer line was in production from model years 1963 to 1983, during which time a total of 4,366 were produced.Aircraft Bluebook Spring 2006 Edition Penton Media, Overland Park, KS USA The type certificate for the Musketeer family of aircraft has been owned by Hawker Beechcraft since March 26, 2007. Development Model 23 Musketeer and Custom The first of the line was the Model 23. It was introduced under the "Musketeer" name as a 1963 model at an initial price of $13,300 and was powered by a Lycoming O-320-D2B engine of . The next year this engine was replaced by the Continental IO-346-A engine of . This engine was not a success and was in turn replaced by t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
