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Multiplex Modellsport
Multiplex Modellsport GmbH & Co. KG of Bretten-Gölshausen, Germany is a manufacturer of hobby-grade radio control electronics, electric radio-controlled airplanes and electric helicopters. Their aircraft models are molded of a proprietary expanded polypropylene foam known as Elapor. The flexible nature of the material makes the company's models resistant to crash damage as well as easy assembly and repair with ordinary hobby-grade cyanoacrylate adhesives. The two-part epoxy commonly used in model assembly will not bind Elapor, nor will so-called "foam safe" cyanoacrylate adhesives used in the assembly and repair of EPS foam models. Products Aircraft Models range from small powered gliders such as the Cularis'to "pusher prop jets" such as the FunJET'pictured right, to electric "sportliners" such as the Blizzard''to the company's largest model, the Mentor' The Mentor (now discontinued), a trainer aircraft which resembles a Cessna 180, is an electric-powered model similar i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Twinjet
A twinjet or twin-engine jet is a jet aircraft powered by two engines. A twinjet is able to fly well enough to land with a single working engine, making it safer than a single-engine aircraft in the event of failure of an engine. Fuel efficiency of a twinjet is better than that of aircraft with more engines. These considerations have led to the widespread use of aircraft of all types with twin engines, including airliners, fixed-wing military aircraft, and others. Aircraft configurations There are three common configurations of twinjet aircraft. The first, common on large aircraft such as airliners, has a podded engine usually mounted beneath, or occasionally above or within, each wing. The second has one engine mounted on each side of the rear fuselage, close to its empennage, used by many business jets. In the third configuration both engines are within the fuselage, side-by-side, used by most fighters since the 1960s. Later fighters using this configuration include the Su- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spread Spectrum
In telecommunication and radio communication, spread-spectrum techniques are methods by which a signal (e.g., an electrical, electromagnetic, or acoustic signal) generated with a particular bandwidth is deliberately spread in the frequency domain, resulting in a signal with a wider bandwidth. These techniques are used for a variety of reasons, including the establishment of secure communications, increasing resistance to natural interference, noise, and jamming, to prevent detection, to limit power flux density (e.g., in satellite downlinks), and to enable multiple-access communications. Telecommunications Spread spectrum generally makes use of a sequential noise-like signal structure to spread the normally narrowband information signal over a relatively wideband (radio) band of frequencies. The receiver correlates the received signals to retrieve the original information signal. Originally there were two motivations: either to resist enemy efforts to jam the communication ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio-controlled Transmitter
Radio control (often abbreviated to RC) is the use of control signals transmitted by radio to remotely control a device. Examples of simple radio control systems are garage door openers and keyless entry systems for vehicles, in which a small handheld radio transmitter unlocks or opens doors. Radio control is also used for control of model vehicles from a hand-held radio transmitter. Industrial, military, and scientific research organizations make use of radio-controlled vehicles as well. A rapidly growing application is control of unmanned aerial vehicles (UAVs or drones) for both civilian and military uses, although these have more sophisticated control systems than traditional applications. History The idea of controlling unmanned vehicles (for the most part in an attempt to improve the accuracy of torpedoes for military purposes) predates the invention of radio. The latter half of the 1800s saw development of many such devices, connected to an operator by wires, inc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Companies Based In Baden-Württemberg
A company, abbreviated as co., is a legal entity representing an association of people, whether natural, legal or a mixture of both, with a specific objective. Company members share a common purpose and unite to achieve specific, declared goals. Companies take various forms, such as: * voluntary associations, which may include nonprofit organizations * business entities, whose aim is generating profit * financial entities and banks * programs or educational institutions A company can be created as a legal person so that the company itself has limited liability as members perform or fail to discharge their duty according to the publicly declared incorporation, or published policy. When a company closes, it may need to be liquidated to avoid further legal obligations. Companies may associate and collectively register themselves as new companies; the resulting entities are often known as corporate groups. Meanings and definitions A company can be defined as an "artificial ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
KO Propo
KO PROPO is a brand of radio control equipment and humanoid robot ( KHR-1) by Kondo Kagaku, established in Tokyo, Japan in 1945. In 1982 KO PROPO introduced the Expert EX-1, reported to have been the first to integrate a pistol grip into a transmitter device with a gun trigger Trigger may refer to: Notable animals and people ;Mononym * Trigger (horse), owned by cowboy star Roy Rogers ;Nickname * Trigger Alpert (1916–2013), American jazz bassist * Mike Coppola (mobster), "Trigger Mike" Coppola (1900–1966), American ... to act as the throttle, which later became a popular fixture in radio controlled transmitters. the company had won 32 IFMAR World titles. References External links KO PROPO USA Japanese companies established in 1945 Companies based in Tokyo Radio-controlled transmitter Robotics companies of Japan Robotics in Japan Science and technology in Japan Japanese brands Technology companies established in 1945 {{tech-company-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japan Remote Control
Japan Remote Control Co., Ltd. (日本遠隔制御株式会社; ''Nippon Enkaku Seigyo Kabushiki Gaisha'') (commonly called source Propo, source Racing, or hum) was a Japanese manufacturer of popular radio control devices including transmitters, receivers, servos, electronics, programmable robots and model aircraft. JR has ceased production of RC equipment. Overview Unique to JR Propo's radios is the company's patented ABC&W technology, or Automatic Blocking Circuit with Window. Simply put, this system rapidly reroutes incoming signals through a series of ever-smaller electronic "windows," effectively blocking out spurious signals which cause radio "glitching". Any signal that does get through the system is filtered before being sent to the servos all without noticeable lag or delay. If the signal is unable to be processed, it is rejected, again without noticeable reaction. Competing brands of radio control systems include, Spektrum RC, Sanwa, Futaba, Hitec, KO Propo, Je ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Graupner (company)
Graupner/SJ GmbH is a radio control equipment manufacturing company founded in 1930 by Johannes Graupner in Stuttgart-Wangen. Taken over in 1953 by son Hans, the company became the leading designer and producer of aircraft and boat radio-controlled models. Providing the world RC market with RC radios and on board sensor equipment, it was purchased from receivership in 2013 by South Korean manufacturer SJ Ltd.In 2014, the name of SJ Inc. was changed to Graupner Co.Ltd., henceforth the name Graupner referring to the South Korean company. History Graupner was founded by Johannes Graupner in Stuttgart in 1930 as a scale model manufacturer. Two years later, the company was moved to Kirchheim unter Teck. In 1935, the first glider model was introduced, and in 1938, the first building plans and materials for ship scale modeling were produced. In 1954 the first radio-controlled models were introduced. After the conclusion of World War II, Johannes Graupner filed permits to reopen the firm. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Futaba Corporation
is a Japanese company founded in 1948, originally to produce vacuum tubes. As time passed, production and elemental techniques of the vacuum tube transformed into the manufacturing of vacuum fluorescent displays (VFDs), tool and die set components, radio control equipment and OLED displays. Company profile Futaba Corporation is divided into three business units — Electronic Components, Electronic Systems Division, and Machinery and Tooling Division. * Electronics Component Division — VFD and OLED displays and capacitive touch panels * Machinery and Tooling — Press and mold equipment and related components * Electronic Systems Division — Radio control (RC) for both hobby and industrial applications and servomotors. Remote control Futaba became one of the first companies of its type to provide comprehensive radio control products, selection and service to hobbyists. Futaba systems and products were quickly accepted and used by serious competitors an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sanwa Electronic
, widely known as Sanwa, is a brand of wireless equipment best known for its high end radio-control gear for scale modelling use. The company have been a subsidiary of the SMC Group since 1965 and began to diversify into the manufacturing of radio-control equipment (transmitters and the devices which they control) in 1974 and remote control devices for home and industrial use since 1985. In North America, Sanwa transmitters were marketed as Airtronics up until early 2016, which began as an independent company producing model airplanes. History Sanwa, originally as part of Sansei Electric Industry, specialized in the research and development of remote control devices in 1959. It merged with Sanwa Denki Manufacturing in 1965 and then became part of the SMC Group. In January 1974, Sanwa entered production and sales of transmitters for radio-controlled models and in December, became a member of the Japan Radio Control Model Industrial Association (JRM). In 1975, Sanwa became a divis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spektrum RC
Spektrum is a brand of radio control systems designed for use with hobby radio-controlled cars and aircraft. Spektrum is a division of Horizon Hobby. The R/C hobby in the United States, Japan, and Europe typically used to employ FM radio control in HF and VHF bands such as 27 MHz, 35 MHz, 49 MHz, and 72 MHz. Most manufacturers of radio gear (all non-toy manufacturers) now use the 2.4 GHz band for their transmitters and receivers. Spektrum systems are distinguished in that they use direct-sequence spread spectrum (DSSS) technology on the 2.4 GHz ISM band. Spektrum refers to their technology as "Digital Spectrum Modulation." Each transmitter has a globally unique identifier (GUID), to which receivers can be bound, ensuring that no transmitter will interfere with other nearby Spektrum DSMx systems. The Spektrum system is also one of the manufacturers which offers "Model Match" in which the receiver in a particular model can be bound to one and only ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electronic Speed Control
An electronic speed control (ESC) is an electronic circuit that controls and regulates the speed of an electric motor. It may also provide reversing of the motor and dynamic braking. Miniature electronic speed controls are used in electrically powered radio controlled models. Full-size electric vehicles also have systems to control the speed of their drive motors. Function An electronic speed control follows a speed reference signal (derived from a throttle lever, joystick, or other manual input) and varies the switching rate of a network of field effect transistors (FETs). By adjusting the duty cycle or switching frequency of the transistors, the speed of the motor is changed. The rapid switching of the current flowing through the motor is what causes the motor itself to emit its characteristic high-pitched whine, especially noticeable at lower speeds. Different types of speed controls are required for brushed DC motors and brushless DC motors. A brushed motor can have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Servomechanism
In control engineering a servomechanism, usually shortened to servo, is an automatic device that uses error-sensing negative feedback to correct the action of a mechanism. On displacement-controlled applications, it usually includes a built-in encoder or other position feedback mechanism to ensure the output is achieving the desired effect. The term correctly applies only to systems where the feedback or error-correction signals help control mechanical position, speed, attitude or any other measurable variables. For example, an automotive power window control is not a servomechanism, as there is no automatic feedback that controls position—the operator does this by observation. By contrast a car's cruise control uses closed-loop feedback, which classifies it as a servomechanism. Applications Position control A common type of servo provides ''position control''. Commonly, servos are electric, hydraulic, or pneumatic. They operate on the principle of negative feedback, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
