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Baykar Cezeri
Cezeri is a quadcopter developed by Baykar Unmanned Aerial Vehicle Systems Co. in Turkey. It was named after Ismail al-Jazari (1136–1206), a Muslim polymath: a scholar, inventor, mechanical engineer, artisan, artist and mathematician from Jazira in Mesopotamia. The heavy prototype made the autonomous maiden flight midnight of September 2020, about one year after its introduction to the public at the 2019 Teknofest Istanbul. Autonomous maiden flight The initial test flights of the quadcopter took place on 11 September 2020. The first autonomous flights were made tied to the ground with ropes for safety reasons. The next two flight tests were conducted in untied free flight on 14 September 2020. All the autonomous flight tests were successful. The vehicle climbed to a height of . Characteristics Cezeri takes off and lands vertical. Its dimensions are . The maxiumum take-off weight is . It is powered by eight rechargeable electric batteries and propelled by eight brushless DC ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ceiling (aeronautics)
With respect to aircraft performance, a ceiling is the maximum density altitude an aircraft can reach under a set of conditions, as determined by its flight envelope. Service ceiling Service ceiling is where the rate of climb drops below a prescribed value. The service ceiling is the maximum usable altitude of an aircraft. Specifically, it is the density altitude at which flying in a clean configuration, at the best rate of climb airspeed for that altitude and with all engines operating and producing maximum continuous power, will produce a given rate of climb. A typical value might be climb, or on the order of climb for jet aircraft. The one-engine inoperative (OEI) service ceiling of a twin-engine, fixed-wing aircraft is the density altitude at which flying in a clean configuration, at the best rate of climb airspeed for that altitude with one engine producing maximum continuous power and the other engine shut down and feathered, will produce a given rate of climb, usually ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Battery Electric Vehicles
A battery electric vehicle (BEV), pure electric vehicle, only-electric vehicle, fully electric vehicle or all-electric vehicle is a type of electric vehicle (EV) that exclusively uses chemical energy stored in rechargeable battery packs, with no secondary source of propulsion (a hydrogen fuel cell, internal combustion engine, etc.). BEVs use electric motors and motor controllers instead of internal combustion engines (ICEs) for propulsion. They derive all power from battery packs and thus have no internal combustion engine, fuel cell, or fuel tank. BEVs include – but are not limited to – motorcycles, bicycles, scooters, skateboards, railcars, watercraft, forklifts, buses, trucks, and cars. In 2016, there were 210 million electric bikes worldwide used daily. Cumulative global sales of highway-capable light-duty pure electric car vehicles passed the one million unit milestone in September 2016. , the world's top selling all-electric car in history is the Tesla Model 3, wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unmanned Aerial Vehicles Of Turkey
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] |
Quadcopters
A quadcopter or quadrotor is a type of helicopter with four rotors. Although quadrotor helicopters and convertiplanes have long been flown experimentally, the configuration remained a curiosity until the arrival of the modern UAV or drone. The small size and low inertia of drones allows use of a particularly simple flight control system, which has greatly increased the practicality of the small quadrotor in this application. Design principles Each rotor produces both lift and torque about its center of rotation, as well as drag opposite to the vehicle's direction of flight. Quadcopters generally have two rotors spinning clockwise (CW) and two counterclockwise (CCW). Flight control is provided by independent variation of the speed and hence lift and torque of each rotor. Pitch and roll are controlled by varying the net centre of thrust, with yaw controlled by varying the net torque. Unlike conventional helicopters, quadcopters do not usually have cyclic pitch control, in wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sabah (newspaper)
''Sabah'' is a Turkish daily newspaper, with a circulation of around 330,000 as of 2011. Its name means "morning" in Turkish. The newspaper was founded in İzmir by Dinç Bilgin on 22 April 1985. In 2007, the government of Turkish Prime Minister Recep Tayyip Erdoğan seized the newspaper, citing a legal document that had not been disclosed to authorities when ''Sabah'' was sold in 2001. Ownership of the newspaper was given to the Savings Deposit Insurance Fund of Turkey. Some of the newspaper's staffers were fired, and the paper was then sold to the Turkuvaz Media Group belonging to Çalık Holding whose CEO, Berat Albayrak, is the son-in-law of Erdoğan and whose chairman, Ahmet Çalık, has been described as a "close associate" of Erdoğan. The $1.1bn sale aroused substantial controversy in Turkey, not least because it was partially financed by $750m of loans from two state banks, VakıfBank and Halkbank, and was sold for the minimum price, with Çalık Holding the sole bidder. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TRT Haber
TRT Haber (English: TRT News) is a Turkish news and current affairs television channel. See also * List of television stations in Turkey The television industry in Turkey includes high-tech program production, transmission and coverage. Turkish Radio and Television Corporation is Turkey's largest and most powerful national television station. As of 1 August 2019, RTÜK states that ... External links Official Websitebr /> TRT Haber Broadcasting Schedule {{DEFAULTSORT:TRT Haber Television stations in Turkey Turkish-language television stations Television channels and stations established in 2010 2010 establishments in Turkey 24-hour television news channels in Turkey Turkish Radio and Television Corporation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habertürk
''Habertürk'' (literally: "News Turkish"), abbreviated as ''HT'', was a high-circulation Turkish newspaper. It was established on March 1, 2009 by Ciner Media Group, drawing on the brand of Ciner's Habertürk TV. It ceased publication on 5 July, 2018. The newspaper sold on its first day of publication 360,000 copies. At 10 hours local time, the first issue was outsold. The next day's circulation totaled to 202,000. The newspaper ranked that day fifth following the dailies ''Hürriyet'' (448,296), ''Sabah'' (420,148), '' Milliyet'' (204,477) and ''Vatan'' (204,154). At its first publishing anniversary in 2010, the newspaper sold 380,000 copies, breaking its own record. Unlike all other newspapers in Turkey, ''Habertürk'' was the first daily to print in Berliner format in , differing slightly from the standard Berliner. Supplements ''Habertürk'' comes out on weekdays with supplements HT Ekonomi (economy), HT Spor (sport), HT Magazin+Bulmaca (magazin plus crossword) and HT İs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brushless DC Electric Motor
A brushless DC electric motor (BLDC motor or BL motor), also known as an electronically commutated motor (ECM or EC motor) or synchronous DC motor, is a synchronous motor using a direct current (DC) electric power supply. It uses an electronic controller to switch DC currents to the motor windings producing magnetic fields which effectively rotate in space and which the permanent magnet rotor follows. The controller adjusts the phase and amplitude of the DC current pulses to control the speed and torque of the motor. This control system is an alternative to the mechanical commutator (brushes) used in many conventional electric motors. The construction of a brushless motor system is typically similar to a permanent magnet synchronous motor (PMSM), but can also be a switched reluctance motor, or an induction (asynchronous) motor. They may also use neodymium magnets and be outrunners (the stator is surrounded by the rotor), inrunners (the rotor is surrounded by the stator), or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quadcopter
A quadcopter or quadrotor is a type of helicopter with four Helicopter rotor, rotors. Although quadrotor helicopters and convertiplanes have long been flown experimentally, the configuration remained a curiosity until the arrival of the modern UAV or drone. The small size and low inertia of drones allows use of a particularly simple flight control system, which has greatly increased the practicality of the small quadrotor in this application. Design principles Each rotor produces both lift (force), lift and torque about its center of rotation, as well as drag force, drag opposite to the vehicle's direction of flight. Quadcopters generally have two rotors spinning clockwise (CW) and two counterclockwise (CCW). Flight control is provided by independent variation of the speed and hence lift and torque of each rotor. Pitch and roll are controlled by varying the net centre of thrust, with yaw controlled by varying the net torque. Unlike conventional helicopters, quadcopters do no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teknofest Istanbul
Teknofest, short for Teknofest Aerospace and Technology Festival, is the largest aviation, aerospace, and technology festival of Turkey initially held at Istanbul Airport in September 2018 by the Turkish Technology Team Foundation (T3) in collaboration with private companies, ministries, and academic institutions. The primary goals of the festival are to raise public awareness about technology in society and to draw attention to the importance of national production. The Festival is filled with seminars, technology competitions, exhibitions of domestic technology enterprises, Take Off İnternational Startup Summit. Visitors also can enjoy numerous attractions, such as aviation demonstrations including parachuting, air shows of "Solo Turk", " Turkish Stars", and many international aerobatic teams. Technology competitions are organized in 12 different categories. People of all ages from primary school students to entrepreneurs can take part in the competitions with their projects ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maiden Flight
The maiden flight, also known as first flight, of an aircraft is the first occasion on which it leaves the ground under its own power. The same term is also used for the first launch of rockets. The maiden flight of a new aircraft type is always a historic occasion for the type and can be quite emotional for those involved. In the early days of aviation it could be dangerous, because the exact handling characteristics of the aircraft were generally unknown. The maiden flight of a new type is almost invariably flown by a highly experienced test pilot. Maiden flights are usually accompanied by a chase plane, to verify items like altitude, airspeed, and general airworthiness. A maiden flight is only one stage in the development of an aircraft type. Unless the type is a pure research aircraft (such as the X-15), the aircraft must be tested extensively to ensure that it delivers the desired performance with an acceptable margin of safety. In the case of civilian aircraft, a new typ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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