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Guimbal Cabri G2
The Guimbal Cabri G2 is a two-seat light helicopter produced by Hélicoptères Guimbal, and powered by a reciprocating engine. Designed by Bruno Guimbal, a former Eurocopter engineer, it had its origins in the 1980s, and the first demonstrator flew in 1992. Following the granting of regulatory approval, the Cabri entered commercial service in 2008. In addition to its use within the general aviation sector and as a training rotorcraft, the Cabri G2 has also been used as the basis for unmanned aerial vehicles (UAVs). Development While working at Eurocopter on the Eurocopter AS365 Dauphin and Eurocopter EC120 Colibri helicopters during the 1980s, Bruno Guimbal decided to independently pursue the development of a two-seat reciprocating engine helicopter.Jerram, Mike"Watch out, R22."''Flying Magazine'', December 1991. p. 37.Kenyon 2008, p. 4. This rotorcraft would incorporate numerous safety-related and general technological advances commonly applied to larger turbine-powered ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guimbal Cabri G2 (G-CILU) At Cotswold Airport England 18Jun2016 Arp
The Guimbal Cabri G2 is a two-seat light helicopter produced by Hélicoptères Guimbal, and powered by a reciprocating engine. Designed by Bruno Guimbal, a former Eurocopter engineer, it had its origins in the 1980s, and the first demonstrator flew in 1992. Following the granting of regulatory approval, the Cabri entered commercial service in 2008. In addition to its use within the general aviation sector and as a training rotorcraft, the Cabri G2 has also been used as the basis for unmanned aerial vehicles (UAVs). Development While working at Eurocopter on the Eurocopter AS365 Dauphin and Eurocopter EC120 Colibri helicopters during the 1980s, Bruno Guimbal decided to independently pursue the development of a two-seat reciprocating engine helicopter.Jerram, Mike"Watch out, R22."''Flying Magazine'', December 1991. p. 37.Kenyon 2008, p. 4. This rotorcraft would incorporate numerous safety-related and general technological advances commonly applied to larger turbine-powered rotor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WikiProject Aircraft
A WikiProject, or Wikiproject, is a Wikimedia movement affinity group for contributors with shared goals. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within sister projects such as Wiktionary, Wikiquote, Wikidata, and Wikisource. They also exist in different languages, and translation of articles is a form of their collaboration. During the COVID-19 pandemic, CBS News noted the role of Wikipedia's WikiProject Medicine in maintaining the accuracy of articles related to the disease. Another WikiProject that has drawn attention is WikiProject Women Scientists, which was profiled by '' Smithsonian'' for its efforts to improve coverage of women scientists which the profile noted had "helped increase the number of female scientists on Wikipedia from around 1,600 to over 5,000". On Wikipedia Some Wikipedia WikiProjects are substantial enough to engage in cooperative activities with outside organizations relevant to the field at issue. For e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
European Aviation Safety Agency
The European Union Aviation Safety Agency (EASA) is an agency of the European Union (EU) with responsibility for civil aviation safety. It carries out certification, regulation and standardisation and also performs investigation and monitoring. It collects and analyses safety data, drafts and advises on safety legislation and co-ordinates with similar organisations in other parts of the world. The idea of a European-level aviation safety authority goes back to 1996, but the agency was legally established only in 2002; it began its work in 2003. History Based in Cologne, Germany, the agency was created on 15 July 2002 as the "European Aviation Safety Agency", and reached full functionality in 2008, taking over functions of the Joint Aviation Authorities. It was renamed the "European Union Aviation Safety Agency" in 2018. European Free Trade Association countries participate in the agency. The United Kingdom was a member until the end of the Brexit transition period on 31 Decem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Immobiliser
An immobiliser or immobilizer is an electronic security device fitted to a motor vehicle that prevents the engine from being started unless the correct key (''transponder'' or ''smart key'') is present. This prevents the vehicle from being " hot wired" after entry has been achieved and thus reduces motor vehicle theft. Research shows that the uniform application of immobilisers reduced the rate of car theft by 40%. Description The electric immobiliser/alarm system was invented by St. George Evans and Edward Birkenbuel and patented in 1919. They developed a 3x3 grid of double-contact switches on a panel mounted inside the car so when the ignition switch was activated, current from the battery (or magneto) went to the spark plugs allowing the engine to start, or immobilizing the vehicle and sounding the horn. The system settings could be changed each time the car was driven. Modern immobiliser systems are automatic, meaning the owner does not have to remember to activate it. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Remote Keyless System
A remote keyless system (RKS), also known as keyless entry or remote central locking, is an electronic lock that controls access to a building or vehicle by using an electronic remote control (activated by a handheld device or automatically by proximity). Widely used in automobiles, an RKS performs the functions of a standard car key without physical contact. When within a few yards of the car, pressing a button on the remote can lock or unlock the doors, and may perform other functions. A remote keyless system can include both ''remote keyless entry'' (RKE), which unlocks the doors, and ''remote keyless ignition'' (RKI), which starts the engine. History One of the first introductions was in 1980 on the Ford Thunderbird, Mercury Cougar, Lincoln Continental Mark VI, and Lincoln Town Car, which Ford called ''Keyless Entry System'' (later renamed SecuriCode). It was a keypad on the driver-side exterior door above the door handle. It consisted of a keypad with five buttons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ground Resonance
Ground resonance is an imbalance in the rotation of a helicopter rotor when the blades become bunched up on one side of their rotational plane and cause an oscillation in phase with the frequency of the rocking of the helicopter on its landing gear. The effect is similar to the behavior of a washing machine when the clothes are concentrated in one place during the spin cycle. It occurs when the landing gear is prevented from freely moving about on the horizontal plane, typically when the aircraft is on the ground. Causes and consequences Articulated rotor systems with drag hinges allow each individual blade to advance or lag in its rotation to compensate for stress on the blade caused by the acceleration and deceleration of the rotor hub (due to momentum conservation). When the spacing of the blades becomes irregular, it shifts the rotor's center of gravity from the axis of rotation, which causes an oscillation. When the airframe begins to rock back and forth from the oscillation, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elastomer
An elastomer is a polymer with viscoelasticity (i.e. both viscosity and elasticity) and with weak intermolecular forces, generally low Young's modulus and high failure strain compared with other materials. The term, a portmanteau of ''elastic polymer'', is often used interchangeably with rubber, although the latter is preferred when referring to vulcanisates. Each of the monomers which link to form the polymer is usually a compound of several elements among carbon, hydrogen, oxygen and silicon. Elastomers are amorphous polymers maintained above their glass transition temperature, so that considerable molecular reconformation is feasible without breaking of covalent bonds. At ambient temperatures, such rubbers are thus relatively compliant ( E ≈ 3 M Pa) and deformable. Their primary uses are for seals, adhesives and molded flexible parts. Application areas for different types of rubber are manifold and cover segments as diverse as tires, soles for shoes, and damping and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sikorsky S-300
The Schweizer S300 series (formerly Hughes 300, Schweizer 300, and Sikorsky S-300) family of light utility helicopters was originally produced by Hughes Helicopters, as a development of the Hughes 269. Later manufactured by Schweizer Aircraft, and currently produced by Schweizer RSG, the basic design has been in production for over 50 years. The single, three-bladed main rotor and piston-powered S300 is mostly used as a cost-effective platform for training and agriculture. Development Background In 1955, Hughes Tool Company's Aircraft Division (later Hughes Helicopters) carried out a market survey showing that there was a demand for a low-cost, lightweight, two-seat helicopter. The division began building the Model 269 in September 1955. The prototype flew on 2 October 1956, but it was not until 1960 that the decision was made to develop the helicopter for production. On 9 April 1959, the 269 received certification from the Federal Aviation Administration (FAA) and Hughes cont ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helicopter Rotor
A helicopter main rotor or rotor system is the combination of several rotary wings (rotor blades) with a control system, that generates the aerodynamic lift force that supports the weight of the helicopter, and the thrust that counteracts aerodynamic drag in forward flight. Each main rotor is mounted on a vertical mast over the top of the helicopter, as opposed to a helicopter tail rotor, which connects through a combination of drive shaft(s) and gearboxes along the tail boom. The blade pitch is typically controlled by the pilot using the helicopter flight controls. Helicopters are one example of rotary-wing aircraft (rotorcraft). The name is derived from the Greek words ''helix'', helik-, meaning spiral; and ''pteron'' meaning wing. Design principles Overview The helicopter rotor is powered by the engine, through the transmission, to the rotating mast. The mast is a cylindrical metal shaft that extends upward from—and is driven by—the transmission. At the top of the mast i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Continental CD-155
The Thielert Centurion is a series of Diesel cycle aircraft engines for general aviation originally built by Thielert, which was bought by Aviation Industry Corporation of China's Tecnify Motors subsidiary and is currently marketed by Continental Motors. They are based on heavily modified Mercedes-Benz automotive engines. Design All Centurion engines are water-cooled, turbocharged, and employ a single-lever power control (SLPC) associated with a Full Authority Digital Engine Control system ( FADEC). This simplifies engine management for the pilot, as well as improving reliability as it prevents the engine being operated improperly. The series utilizes either jet fuel or diesel fuel. The high compression ratio of the engine combined with the digitally controlled fuel injection system mirrors similar advances in automotive technology. Centurion series engines are always fitted with constant speed propellers which allow the engine to be operated at optimum speed at all time ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eurocopter EC725
The Eurocopter EC725 Caracal, now called Airbus Helicopters H225M, is a long-range tactical transport military helicopter developed from the Eurocopter AS532 Cougar for military use. It is a twin-engined aircraft and can carry up to 28 seated troops along with two crew, depending on customer configuration. The helicopter is marketed for troop transport, casualty evacuation, and combat search and rescue duties, and is similar to the civilian EC225 Super Puma. Development The EC725 was developed to meet a French Air Force requirement for a specialist helicopter for Combat Search and Rescue operations. The AS 532 A2 Cougar model was examined and rejected for this purpose following extensive trials between 1996 and 1999. The primary improvements desired by the French Air Force were more powerful engines, greater flight endurance and improved combat durability.Nelms, Douglas W"Helicopter Intellect." ''Rotor & Wing'', 1 September 2004. Eurocopter opted to pursue development of a mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Autopilot
An autopilot is a system used to control the path of an aircraft, marine craft or spacecraft without requiring constant manual control by a human operator. Autopilots do not replace human operators. Instead, the autopilot assists the operator's control of the vehicle, allowing the operator to focus on broader aspects of operations (for example, monitoring the trajectory, weather and on-board systems). When present, an autopilot is often used in conjunction with an autothrottle, a system for controlling the power delivered by the engines. An autopilot system is sometimes colloquially referred to as ''"George"'' (e.g. ''"we'll let George fly for a while"''). The etymology of the nickname is unclear: some claim it is a reference to inventor George De Beeson, who patented an autopilot in the 1930s, while others claim that Royal Air Force pilots coined the term during World War II to symbolize that their aircraft technically belonged to King George VI. First autopilots In th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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