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Qinetiq Zephyr
The Airbus
Airbus
Zephyr is a series of lightweight solar-powered UAV originally designed and built in 2003 by the British company, QinetiQ.[1] The development of the aircraft is ongoing and currently part of the Airbus
Airbus
High Altitude Pseudo-Satellite (HAPS) programme.[2][3]Contents1 Development 2 Design 3 Applications3.1 United Kingdom4 Specifications (Zephyr 7) 5 See also 6 Notes and references 7 External linksDevelopment[edit] The Zephyr 7 holds the official endurance record for an unrefuelled, unmanned aerial vehicle with its flight from 9 July to 23 July 2010, lasting 336 hours, 22 minutes and 8 seconds. It could also remain airborne for months thanks to its solar cells and rechargeable batteries.[4][5][6] Record claims have been verified by the Fédération Aéronautique Internationale
Fédération Aéronautique Internationale
(FAI) for both duration[5] and altitude, at 21,562 meters
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United Kingdom
The United Kingdom
United Kingdom
of Great Britain
Great Britain
and Northern Ireland, commonly known as the United Kingdom
United Kingdom
(UK) or Britain, is a sovereign country in western Europe
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David Cameron
Prime Minister of the United KingdomFirst Ministry and Term Cameron–Clegg coalition
Cameron–Clegg coalition
and agreement Bloody Sunday apology Spending and Strategic Defence reviews Military intervention in Libya (Operation Ellamy) Alternative Vote referendum Phone hacking scandal 2011 riots Welfare Reform ActHealth and Social Care ActLondon 2012 Summer Olympics Belfast City Hall flag protests
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Royal Armament Research And Development Establishment
Fort Halstead is a research site of Dstl, an executive agency of the UK Ministry of Defence. It is situated on the crest of the Kentish North Downs, overlooking the town of Sevenoaks. Originally constructed in 1892 as one of a ring of fortresses around London, Fort Halstead was to be manned by volunteers in the event of a crisis. The base became home to the Projectile Development Establishment, the Ministry of Supply and later was the headquarters of the Royal Armament Research and Development Establishment (RARDE).[1]Contents1 Design and construction 2 History as a defensive work 3 Rocket research 4 History of RARDE 5 Evolution to DERA 6 DSTL 7 Distinguished former staff 8 See also 9 References9.1 General10 External linksDesign and construction[edit] Fort Halstead formed a part of the London Defence Positions, a scheme devised by General Sir Edward Bruce Hamley and implemented by the Secretary of State for War, Edward Stanhope, who announced the plan to Parliament in 1889
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Popular Mechanics
Popular Mechanics
Popular Mechanics
is a classic magazine of popular science and technology. Popular Mechanics
Popular Mechanics
was first published by Henry Haven Windsor, January 11, 1902. It has been owned since 1958 by Hearst Communications. There are nine[3] international editions, including a now-defunct Latin American version that had been published for decades, and a newer South African edition. The Russian edition of Popular Mechanics has been issued since 2002
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Airbus
Civilian A300, A310, A318, A319, A320, A321, A330, A340, A350, A380Revenue €66.767 billion[3] (FY 2017)Operating income €4.253 billion[3] (FY 2017)Net income €2.873 billion[3] (FY 2017)Total assets €111.13 billion[4] (FY 2016)Total equity €3.65 billion[4] (FY 2016)OwnerAs of September 2016:[5] France
France
– 11.1% Germany
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Air Strato
AirStrato
AirStrato
is a solar powered medium-sized unmanned aerial vehicle that was being developed by ARCA. There were two variants planned, AirStrato
AirStrato
Explorer with a target flight ceiling of 18,000 m and AirStrato
AirStrato
Pioneer with a target flight ceiling of 8000 m. It was planned to carry a 45 kg payload consisting of surveillance equipment, scientific instruments or additional battery pods for extended autonomy.[1][2] The first prototype maiden flight took place on February 28, 2014. It was equipped with a fixed landing gear. Two more prototypes were constructed that lacked a landing gear. Instead ARCA opted for a pneumatic catapult as a launcher and landing skids and a recovery parachute for landing
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Brushless AC Electric Motor
Brushless DC electric motor (BLDC motors, BL motors) also known as electronically commutated motors (ECMs, EC motors), or synchronous DC motors, are synchronous motors powered by DC electricity via an inverter or switching power supply which produces an AC electric current to drive each phase of the motor via a closed loop controller. The controller provides pulses of current to the motor windings that control the speed and torque of the motor. 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.[1] The advantages of a brushless motor over brushed motors are high power to weight ratio, high speed, and electronic control. Brushless motors find applications in such places as computer peripherals (disk drives, printers), hand-held power tools, and vehicles ranging from model aircraft to automobiles.Contents1 Brushless vs
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Ministry Of Defence (United Kingdom)
The Ministry of Defence (MoD or MOD) is the British government department responsible for implementing the defence policy set by Her Majesty's Government and is the headquarters of the British Armed Forces. The MOD states that its principal objectives are to defend the United Kingdom of Great Britain and Northern Ireland and its interests and to strengthen international peace and stability.[3] With the collapse of the Soviet Union
Soviet Union
and the end of the Cold War, the MOD does not foresee any short-term conventional military threat; rather, it ha
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Intelligence, Surveillance, Target Acquisition, And Reconnaissance
ISTAR stands for intelligence, surveillance, target acquisition, and reconnaissance. In its macroscopic sense, ISTAR is a practice that links several battlefield functions together to assist a combat force in employing its sensors and managing the information they gather. Information
Information
is collected on the battlefield through systematic observation by deployed soldiers and a variety of electronic sensors. Surveillance, target acquisition and reconnaissance are methods of obtaining this information. The information is then passed to intelligence personnel for analysis, and then to the commander and his staff for the formulation of battle plans
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Solar Insolation
Solar irradiance
Solar irradiance
is the power per unit area received from the Sun
Sun
in the form of electromagnetic radiation in the wavelength range of the measuring instrument. The solar irradiance integrated over time is called solar irradiation, insolation, or solar exposure. However, insolation is often used interchangeably with irradiance in practice. Irradiance may be measured in space or at the Earth's surface
Earth's surface
after atmospheric absorption and scattering
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House Of Commons Of The United Kingdom
The House of Commons
House of Commons
is the lower house of the Parliament of the United Kingdom. Like the upper house, the House of Lords, it meets in the Palace of Westminster. Officially, the full name of the house is the Honourable the Commons of the United Kingdom
United Kingdom
of Great Britain
Great Britain
and Northern Ireland
Northern Ireland
in Parliament assembled. Offices however extend to Portcullis House
Portcullis House
due to shortage of space. The Commons is an elected body consisting of 650 members known as Members of Parliament (MPs). Members are elected to represent constituencies by first-past-the-post and hold their seats until Parliament is dissolved. The House of Commons
House of Commons
of England
England
evolved in the 13th and 14th centuries
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Lithium-sulphur Battery
The lithium–sulfur battery (Li–S battery) is a type of rechargeable battery, notable for its high specific energy.[1] The low atomic weight of lithium and moderate weight of sulfur means that Li–S batteries are relatively light (about the density of water). They were used on the longest and highest-altitude solar-powered aeroplane flight in August 2008.[2] Lithium–sulfur batteries may succeed lithium-ion cells because of their higher energy density and reduced cost from the use of sulfur.[3] Currently the best Li–S batteries offer specific energies on the order of 500 W·h/kg, significantly better than most lithium-ion batteries, which are in the range of 150 to 200 W·h/kg
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Carbon Fiber
Carbon fiber reinforced polymer, carbon fiber reinforced plastic or carbon fiber reinforced thermoplastic (CFRP, CRP, CFRTP or often simply carbon fiber, carbon composite or even carbon), is an extremely strong and light fiber-reinforced plastic which contains carbon fibers. The alternative spelling 'fibre' is common in British Commonwealth countries. CFRPs can be expensive to produce but are commonly used wherever high strength-to-weight ratio and rigidity are required, such as aerospace, automotive, civil engineering, sports goods and an increasing number of other consumer and technical applications. The binding polymer is often a thermoset resin such as epoxy, but other thermoset or thermoplastic polymers, such as polyester, vinyl ester or nylon, are sometimes used. The composite may contain aramid (e.g
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EADS Astrium
Astrium
Astrium
was an aerospace manufacturer subsidiary of the European Aeronautic Defence and Space Company (EADS) that provided civil and military space systems and services from 2006 to 2013
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Fédération Aéronautique Internationale
The Fédération aéronautique internationale (FAI; English: The World Air Sports Federation), is the world governing body for air sports. It was founded on 14 October 1905, and is headquartered in Lausanne, Switzerland.[3] It maintains world records for aeronautical activities including ballooning, aeromodeling, and unmanned aerial vehicles; and also for human spaceflight.Contents1 History 2 Activities 3 Records3.1 Classes 3.2 Some of the records4 Awards 5 FAI Young Artists Contest 6 Members6.1 Active members 6.2 Associate members 6.3 Affiliate members 6.4 Temporary members 6.5 Suspended members7 See also 8 References 9 External linksHistory[edit] The FAI was founded at a conference held in Paris 12–14 October 1905, which was organised following a resolution passed by the Olympic Congress held in Brussels on 10 June 1905 calling for the creation of an Association "to regulate the sport of flying, ..
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