|
Alenia Aermacchi Sky-Y
The Italian Alenia Aeronautica Sky-Y is a self-financed MALE Unmanned air vehicle for demonstration and research purpose; on 30 October 2007 it set a new European endurance record in the over 1000 kg category with a spotless eight-hour flight. Since 2016 manufacturer became Leonardo-Finmeccanica as Alenia Aermaccchi merged into the new Finmeccanica (definitively rebranded Leonardo since 2017). Design and development The roll-out of the Sky-Y was carried out by Alenia in June 2007, after 12 months of development, and it first flew at the Swedish test area of Vidsel. As a testbed for key MALE UAV technologies the aircraft include a heavy fuel engine of automotive derivation, a new night and day ATOL system (Autonomous take off and landing), a collision avoidance system and an advanced data link with surveillance sensor data integration. After a first test campaign conducted in order to explore the whole flight envelope and the engine performance the development has focused ... [...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] |
Synthetic Aperture Radar
Synthetic-aperture radar (SAR) is a form of radar that is used to create two-dimensional images or three-dimensional reconstructions of objects, such as landscapes. SAR uses the motion of the radar antenna over a target region to provide finer spatial resolution than conventional stationary beam-scanning radars. SAR is typically mounted on a moving platform, such as an aircraft or spacecraft, and has its origins in an advanced form of side looking airborne radar (SLAR). The distance the SAR device travels over a target during the period when the target scene is illuminated creates the large ''synthetic'' antenna aperture (the ''size'' of the antenna). Typically, the larger the aperture, the higher the image resolution will be, regardless of whether the aperture is physical (a large antenna) or synthetic (a moving antenna) – this allows SAR to create high-resolution images with comparatively small physical antennas. For a fixed antenna size and orientation, objects which are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Twin-boom Aircraft
A twin-boom aircraft is characterised by two longitudinal booms (extended nacelle-like bodies). The booms may contain ancillary items such as fuel tanks and/or provide a supporting structure for other items. Typically, twin tailbooms support the tail surfaces, although on some types such as the Rutan Model 72 Grizzly the booms run forward of the wing. The twin-boom configuration is distinct from twin-fuselage designs in that it retains a central fuselage. Design The twin-boom configuration is distinct from the twin fuselage type in having a separate, short fuselage housing the pilot and payload. It has been adopted to resolve various design problems with the conventional empennage for aircraft in different roles. Engine mounting For a single engine with a propeller in the pusher configuration or a jet engine, a conventional tail requires the propeller or exhaust to be moved far aft, requiring either a very long driveshaft or jet pipe and thus reducing propulsive efficien ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alenia Aircraft
Alenia may refer to: Companies * Alenia Aermacchi, an Italian aeronautics company, founded in 2012 * Alenia Aeronautica Alenia Aeronautica was an Italian aerospace company. Its subsidiaries included Alenia Aermacchi and Alenia Aeronavali. Alenia Aeronautica was also the part-owner of ATR, a joint venture with European Aeronautic Defence and Space Company (EADS ..., a former Italian aeronautics company, founded in 1990 and merged into Alenia Aermacchi * Alenia Marconi Systems, a former Anglo-Italian defence electronics company * Alenia Spazio, an Italian aerospace company (now Thales Alenia Space) Other uses * ''Alenia'' (butterfly), a genus of skippers in the family Hesperiidae {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unmanned Aerial Vehicles Of Italy
An uncrewed vehicle or unmanned vehicle is a vehicle without a person on board. Uncrewed vehicles can either be under telerobotic control—remote controlled or remote guided vehicles—or they can be autonomously controlled—autonomous vehicles—which are capable of sensing their environment and navigating on their own. Types There are different types of uncrewed vehicles: * Remote control vehicle (RC), such as radio-controlled cars or radio-controlled aircraft * Unmanned ground vehicle (UGV), such as the autonomous cars, or unmanned combat vehicles (UCGV) * Unmanned ground and aerial vehicle (UGAV), unmanned vehicle with hybrid locomotion methods * Unmanned aerial vehicle (UAV), unmanned aircraft commonly known as "drone" ** Unmanned combat aerial vehicle (UCAV) **Medium-altitude long-endurance unmanned aerial vehicle (MALE) ** Miniature UAV (SUAV) ** Delivery drone ** Micro air vehicle (MAV) ** Target drone * Autonomous spaceport drone ship * Uncrewed surface vehicle (USV) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turbodiesel
The term turbo-diesel, also written as turbodiesel and turbo diesel, refers to any diesel engine equipped with a turbocharger. As with other engine types, turbocharging a diesel engine can significantly increase its efficiency and power output, especially when used in combination with an intercooler. Turbocharging of diesel engines began in the 1920s with large marine and stationary engines. Trucks became available with turbo-diesel engines in the mid-1950s, followed by passenger cars in the late 1970s. Since the 1990s, the compression ratio of turbo-diesel engines has been dropping. Principle Diesel engines are typically well suited to turbocharging due to two factors: * A "lean" air–fuel ratio, caused when the turbocharger supplies excess air into the engine, is not a problem for diesel engines, because the torque control is dependent on the mass of fuel that is injected into the combustion chamber (i.e. air-fuel ratio), rather than the quantity of the air-fuel mixture. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FADEC
A full authority digital engine (or electronics) control (FADEC) is a system consisting of a digital computer, called an "electronic engine controller" (EEC) or "engine control unit" (ECU), and its related accessories that control all aspects of aircraft engine performance. FADECs have been produced for both piston engines and jet engines. History The goal of any engine control system is to allow the engine to perform at maximum efficiency for a given condition. Originally, engine control systems consisted of simple mechanical linkages connected physically to the engine. By moving these levers the pilot or the flight engineer could control fuel flow, power output, and many other engine parameters. The mechanical/hydraulic engine control unit for Germany's BMW 801 piston aviation radial engine of World War II was just one notable example of this in its later stages of development. This mechanical engine control was progressively replaced first by analog electronic engine control ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
JTD Engine
Multijet is Fiat Chrysler Automobiles' term for its current common rail direct injection turbodiesel engine range. Most of the Fiat, Alfa Romeo, Lancia range as well as certain Chrysler, RAM Trucks, Jeep and Maserati vehicles are equipped with Multijet engines. Ownership of some Fiat Multijet designs is shared with General Motors as part of a settlement of the failed merger between the two auto conglomerates. GM Powertrain Torino group in Turin, Italy manages their interest in these engines. Some PSA Peugeot Citroën diesel engines are also rebadged JTD units, and vice versa.(source needed) Fiat's common rail diesel engine is also known as JTD, an initialism of Jet Turbo Diesel.autobild.deJTD - Lexikon - autobild.de accessdate: 19. June 2019 Characteristics The property that distinguishes the Multijet from previous generations of common rail diesel engines from FCA is the combustion of the fuel, which is split into multiple injections, thus allowing for a more complete, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fiat Powertrain Technologies
FPT Industrial is an Italian multinational designer and manufacturer of transmissions, axles, diesel and petrol engines that was established in March 2005 as a Fiat Group division which included all the activities related to powertrains and transmissions. The company was formed following the dissolution of the alliance between Fiat and General Motors. Between 2005 and 2011, the company also included industrial and commercial powertrain activities that were subsequently spun off as a separate entity named FPT Industrial, which is currently an Iveco Group brand. The company has activities in nine different countries, it has 10 plants and around 20,000 employees. With output of around 2.9 million engines and 2.4 million transmissions and axles annually, FPT Industrial is one of the largest companies in the powertrain sector. FPT innovations * Variable Valve Timing (1960). First patent of automotive variable valve timing * Common Rail technology (1997). Patent sold to Robert B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
