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Rolls-Royce ACCEL
The Rolls-Royce ACCEL (Accelerating the Electrification of Flight) is an electric aircraft demonstrator developed by Rolls-Royce plc. Development Rolls-Royce developed the ACCEL as a racing aircraft to gain the all-electric air speed record, targeting over . The existing electric aircraft record at that time was , set in 2017 by a Siemens powered Extra 330. Designed at Gloucestershire Airport, the project is partly funded by the UK government and involves partners such as electric motor and controller manufacturer YASA Limited and aviation start-up Electroflight. The team aimed to reach the 1931 Schneider Trophy speed, which was won by a R-R-powered Supermarine S.6B, reaching . On 15 September 2021, Rolls-Royce announced the aircraft, named "Spirit of Innovation", had successfully completed its first flight, flying from MoD Boscombe Down for fifteen minutes. It subsequently reached a top speed of , and sustained over 3 km, over 15 km, and was able to climb t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Aircraft
An electric aircraft is an aircraft powered by electricity. Electric aircraft are seen as a way to reduce the environmental effects of aviation, providing zero emissions and quieter flights. Electricity may be supplied by a variety of methods, the most common being batteries. Most have electric motors driving propellers or turbines. Crewed flights in an electrically powered airship go back to the 19th century, and to 1917 for a tethered helicopter. Electrically powered model aircraft have been flown at least since the 1970s, preceding the small unmanned aerial vehicles (UAV) or drones used today. Small UAS could be used for parcel deliveries, and larger ones for long-endurance applications: aerial imagery, surveillance, telecommunications. The first crewed free flight by an electrically powered aeroplane, the MB-E1, was made in 1973, and most crewed electric aircraft today are still only experimental prototypes. Between 2015 and 2016, Solar Impulse 2 completed a circ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Supermarine S
Supermarine was a British aircraft manufacturer that is most famous for producing the Spitfire fighter plane during World War II as well as a range of seaplanes and flying boats, and a series of jet-powered fighter aircraft after World War II. The company had successes in the Schneider Trophy for seaplanes, with three wins in a row of 1927, 1929 and 1931. The company was founded in 1913 as Pemberton-Billing Ltd on the River Itchen close to Woolston, Southampton, on ground previously purchased by Noel Pemberton Billing to construct motor launches. It produced a couple of prototypes using quadruplane designs to shoot down zeppelins, the Supermarine P.B.29 and the Supermarine Nighthawk. The aircraft were fitted with the recoilless Davis gun and the Nighthawk had a separate powerplant to power a searchlight.The World's Worst Aircraft James Gilbert Upon election as a Member of Parliament (MP) in 1916, Pemberton-Billing sold the company to his factory manager and longtime associat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proposed Aircraft
Proposal(s) or The Proposal may refer to: * Proposal (business) * Research proposal * Proposal (marriage) * Proposition, a proposal in logic and philosophy Arts, entertainment, and media * ''The Proposal'' (album) Films * ''The Proposal'' (1957 film), an Australian television play based on Chekhov's 1890 play * ''The Proposal'' (2001 film), starring Nick Moran, Jennifer Esposito, and Stephen Lang * ''The Proposal'' (2009 film), starring Sandra Bullock and Ryan Reynolds * ''The Proposal'' (2022 film), starring Joe Joseph and Amara Raja * " La propuesta" ("The Proposal"), a short story in the 2014 Argentina anthology film ''Wild Tales'' Literature * ''Proposals (play)'', a 1997 play by Neil Simon * ''The Proposal'' (novel), 1999 and 35th book in the ''Animorphs'' series by K.A. Applegate * ''The Proposal'', alternative title of Chekhov's 1890 play '' A Marriage Proposal'' Television * ''The Proposal'' (American TV series), a 2018 reality dating series * The Proposal (A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rolls-Royce Aircraft
Rolls-Royce (always hyphenated) may refer to: * Rolls-Royce Limited, a British manufacturer of cars and later aero engines, founded in 1906, now defunct Automobiles * Rolls-Royce Motor Cars, the current car manufacturing company incorporated in 1998, a subsidiary of BMW Group * Rolls-Royce Motors, owner of the former car division incorporated in 1973, bought by Vickers in 1980, a subsidiary of Volkswagen Group from 1998 to 2002 * List of Rolls-Royce motor cars This is a list of Rolls-Royce branded motor cars and includes vehicles manufactured by: *Rolls-Royce Limited (1906–1973) *Rolls-Royce Motors (1973–2003), which was created as a result of the demerger of Rolls-Royce Limited in 1973. Vickers p ... Aerospace and nuclear power * Rolls-Royce Holdings plc, an aerospace, power systems and defence company and Rolls-Royce's current principal operating company **Rolls-Royce Deutschland ***Rolls-Royce Power Systems ** Rolls-Royce Marine Power Operations ** Rolls-Royce Nort ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Energy Density
In physics, energy density is the amount of energy stored in a given system or region of space per unit volume. It is sometimes confused with energy per unit mass which is properly called specific energy or . Often only the ''useful'' or extractable energy is measured, which is to say that inaccessible energy (such as rest mass energy) is ignored. In cosmological and other general relativistic contexts, however, the energy densities considered are those that correspond to the elements of the stress–energy tensor and therefore do include mass energy as well as energy densities associated with pressure. Energy per unit volume has the same physical units as pressure and in many situations is synonymous. For example, the energy density of a magnetic field may be expressed as and behaves like a physical pressure. Likewise, the energy required to compress a gas to a certain volume may be determined by multiplying the difference between the gas pressure and the external pressure by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Power Density
Power density is the amount of power (time rate of energy transfer) per unit volume. In energy transformers including batteries, fuel cells, motors, power supply units etc., power density refers to a volume, where it is often called volume power density, expressed as W/m3. In reciprocating internal combustion engines, power density (power per swept volume or brake horsepower per cubic centimeter) is an important metric, based on the ''internal'' capacity of the engine, not its external size. Examples See also *Surface power density, energy per unit of area *Energy density, energy per unit volume * Specific energy, energy per unit mass * Power-to-weight ratio/specific power, power per unit mass **Specific absorption rate Specific absorption rate (SAR) is a measure of the rate at which energy is absorbed per unit mass by a human body when exposed to a radio frequency (RF) electromagnetic field. It can also refer to absorption of other forms of energy by tissue, inc ... ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fédération Aéronautique Internationale
The (; FAI; en, World Air Sports Federation) is the world governing body for air sports, and also stewards definitions regarding human spaceflight. It was founded on 14 October 1905, and is headquartered in Lausanne, Switzerland. It maintains world records for aeronautical activities, including ballooning, aeromodeling, and unmanned aerial vehicles (drones), as well as flights into space. History The FAI was founded at a conference held in Paris 12–14 October 1905, which was organized 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, ... the various aviation meetings and advance the science and sport of Aeronautics." The conference was attended by representatives from 8 countries: Belgium (Aero Club Royal de Belgique, founded 1901), France (Aéro-Club de France, 1898), Germany ( Deutscher Aero Club e.V.), Great Britain (Royal Aero Club, 1901), Italy ( Aero C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rolls-Royce
Rolls-Royce (always hyphenated) may refer to: * Rolls-Royce Limited, a British manufacturer of cars and later aero engines, founded in 1906, now defunct Automobiles * Rolls-Royce Motor Cars, the current car manufacturing company incorporated in 1998, a subsidiary of BMW Group * Rolls-Royce Motors, owner of the former car division incorporated in 1973, bought by Vickers in 1980, a subsidiary of Volkswagen Group from 1998 to 2002 * List of Rolls-Royce motor cars Aerospace and nuclear power * Rolls-Royce Holdings plc, an aerospace, power systems and defence company and Rolls-Royce's current principal operating company **Rolls-Royce Deutschland ***Rolls-Royce Power Systems ** Rolls-Royce Marine Power Operations ** Rolls-Royce North America ** Rolls-Royce Turbomeca ** Rolls-Royce Kamawea, now Kamewa ** Rolls-Royce Controls and Data Services See also * Rose Royce, an American soul and R&B group * Roll (other) * Royce (other) Markus Bennett is an American hip-hop re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MoD Boscombe Down
MoD Boscombe Down ' is the home of a military aircraft testing site, on the southeastern outskirts of the town of Amesbury, Wiltshire, England. The site is managed by QinetiQ, the private defence company created as part of the breakup of the Defence Evaluation and Research Agency (DERA) in 2001 by the UK Ministry of Defence (MoD). The base was originally conceived, constructed, and operated as Royal Air Force Boscombe Down, more commonly known as RAF Boscombe Down, and since 1939, has evaluated aircraft for use by the British Armed Forces. The airfield has two runways, one in length, and the second . The airfield's evaluation centre is currently home to Rotary Wing Test and Evaluation Squadron (RWTS), Fast Jet Test Squadron (FJTS), Heavy Aircraft Test Squadron (HATS), Handling Squadron, and the Empire Test Pilots' School (ETPS). History First World War An aerodrome opened at the Boscombe Down site in October 1917 and operated as a Royal Flying Corps Training Depot Station. Kn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schneider Trophy
The Coupe d'Aviation Maritime Jacques Schneider, also known as the Schneider Trophy, Schneider Prize or (incorrectly) the Schneider Cup is a trophy that was awarded annually (and later, biennially) to the winner of a race for seaplanes and flying boats. The Schneider Trophy is now held at the Science Museum, South Kensington, London. Announced in 1912 by Jacques Schneider, a French financier, balloonist and aircraft enthusiast, the competition offered a prize of approximately £1,000. The race was held twelve times between 1913 and 1931. It was intended to encourage technical advances in civil aviation but became a contest for pure speed with laps over a (usually) triangular course, initially and later extended to . The contests were staged as time trials, with aircraft setting off individually at set intervals, usually 15 minutes apart. The contests were very popular and some attracted crowds of over 200,000 spectators. The race was significant in advancing aeroplane design, pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rolls-Royce Plc
Rolls-Royce Holdings plc is a British multinational aerospace and defence company incorporated in February 2011. The company owns Rolls-Royce, a business established in 1904 which today designs, manufactures and distributes power systems for aviation and other industries. Rolls-Royce is the world's second-largest maker of aircraft engines (after General Electric) and has major businesses in the marine propulsion and energy sectors. Rolls-Royce was the world's 16th largest defence contractor in 2018 when measured by defence revenues. Rolls-Royce Holdings plc is listed on the London Stock Exchange, where it is a constituent of the FTSE 100 Index. At the close of London trading on 28 August 2019, the company had a market capitalisation of £4.656bn, the 85th-largest of any company with a primary listing on the London Stock Exchange. The company's registered office is at Kings Place, near Kings Cross in London. History Ownership Rolls-Royce grew from the engineering business ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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