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48-716: LAPE, often also spelt L.A.P.E. and colloquially known as "Las LAPE" , replaced CLASSA ( Compañía de Líneas Aéreas Subvencionadas) , the company that had been Spain's national airline during the dictatorship of Miguel Primo de Rivera , an airline that was still reeling from the Great Depression . LAPE was established in April 1932, CLASSA flying under the Spanish Republican Flag for one year. The republican government of Spain compensated CLASSA's shareholders and established postal contracts in order to make

96-583: A busy terminal area or using a major airport), and in many areas, such as northern Canada and low altitude in northern Scotland, air traffic control services are not available even for IFR flights at lower altitudes. Like all activities involving combustion , operating powered aircraft (from airliners to hot air balloons) releases soot and other pollutants into the atmosphere. Greenhouse gases such as carbon dioxide (CO 2 ) are also produced. In addition, there are environmental impacts specific to aviation: for instance, Another environmental impact of aviation

144-507: A civil aviation authority must approve an aircraft suitable for safe flight operations. MRO firms are responsible for this process, thoroughly checking and documenting all components' repairs while tracking mechanical, propulsion, and electronic parts. Aviation regulators oversee maintenance practices in the country of aircraft registration, manufacture, or current location. All aircraft maintenance activities must adhere to international regulations that mandate standards. An aviation accident

192-456: A feat made possible by their invention of three-axis control and in-house development of an engine with a sufficient power-to-weight ratio . Only a decade later, at the start of World War I , heavier-than-air powered aircraft had become practical for reconnaissance, artillery spotting, and even attacks against ground positions. Aircraft began to transport people and cargo as designs grew larger and more reliable. The Wright brothers took aloft

240-524: A few hundred miles, was diminishing as airplane design advanced. The "Golden Age" of the airships ended on May 6, 1937. That year the Hindenburg caught fire, killing 36 people. The cause of the Hindenburg accident was initially blamed on the use of hydrogen instead of helium as the lift gas. An internal investigation by the manufacturer revealed that the coating used in the material covering the frame

288-509: Is a firm that ensures airworthiness or air transport. According to a 2024 article, "maintenance (M) involves inspecting, cleaning, oiling, and changing aircraft parts after a certain number of flight hours. Repair (R) is restoring the original function of parts and components. Overhaul (O) refers to extensive maintenance, the complete refurbishment of the aircraft, and upgrades in avionics, which can take several weeks to complete." Airlines are legally obligated to certify airworthiness, meaning that

336-458: Is defined by the Convention on International Civil Aviation Annex 13 as an occurrence associated with the operation of an aircraft which takes place between the time any person boards the aircraft with the intention of flight until such time as all such persons have disembarked, in which a person is fatally or seriously injured, the aircraft sustains damage or structural failure or the aircraft

384-759: Is especially important for aircraft flying under instrument flight rules (IFR), when they may be in weather conditions that do not allow the pilots to see other aircraft. However, in very high-traffic areas, especially near major airports, aircraft flying under visual flight rules (VFR) are also required to follow instructions from ATC. In addition to separation from other aircraft, ATC may provide weather advisories, terrain separation, navigation assistance, and other services to pilots, depending on their workload. ATC do not control all flights. The majority of VFR (Visual Flight Rules) flights in North America are not required to contact ATC (unless they are passing through

432-490: Is missing or is completely inaccessible. An accident in which the damage to the aircraft is such that it must be written off, or in which the plane is destroyed, is called a hull loss accident . The first fatal aviation accident occurred in a Wright Model A aircraft at Fort Myer, Virginia, US , on September 17, 1908, resulting in injury to the pilot, Orville Wright , and death of the passenger, Signal Corps Lieutenant Thomas Selfridge . The worst aviation accident in history

480-458: Is private or commercial and on the type of equipment involved. Many small aircraft manufacturers serve the general aviation market, with a focus on private aviation and flight training. The most important recent developments for small aircraft (which form the bulk of the GA fleet) have been the introduction of advanced avionics (including GPS ) that were formerly found only in large airliners , and

528-904: The September 11 attacks and the SARS pandemic have driven many older airlines to government-bailouts, bankruptcy or mergers. At the same time, low-cost carriers such as Ryanair , Southwest and WestJet have flourished. General aviation includes all non-scheduled civil flying, both private and commercial . General aviation may include business flights, air charter , private aviation, flight training, ballooning , paragliding , parachuting , gliding , hang gliding , aerial photography , foot-launched powered hang gliders , air ambulance, crop dusting, charter flights, traffic reporting , police air patrols and forest fire fighting. Each country regulates aviation differently, but general aviation usually falls under different regulations depending on whether it

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576-614: The Spanish Republican Air Force and used as military transports, LAPE kept operating in the Republican zones of Spain with its base in Madrid-Barajas. The Madrid-Barcelona line was functioning and it was extended to Toulouse . There was also a flight Madrid-Santander until mid-1937 when Santander fell into Nationalist hands that was flying in a wide roundabout in order to avoid the fronts. Whenever

624-550: The Spanish Republican Flag for another year. LAPE began operations in April 1932, with their assets and fleets being merged. The Republican government of Spain compensated CLASSA's shareholders after it was dissolved. Air transport Aviation includes the activities surrounding mechanical flight and the aircraft industry. Aircraft includes fixed-wing and rotary-wing types, morphable wings, wing-less lifting bodies, as well as lighter-than-air aircraft such as hot air balloons and airships . Aviation began in

672-526: The 18th century with the development of the hot air balloon , an apparatus capable of atmospheric displacement through buoyancy . Some of the most significant advancements in aviation technology came with the controlled gliding flying of Otto Lilienthal in 1896; then a large step in significance came with the construction of the first powered airplane by the Wright brothers in the early 1900s. Since that time, aviation has been technologically revolutionized by

720-546: The 1960s composite material airframes and quieter, more efficient engines have become available, and Concorde provided supersonic passenger service for more than two decades, but the most important lasting innovations have taken place in instrumentation and control. The arrival of solid-state electronics, the Global Positioning System , satellite communications , and increasingly small and powerful computers and LED displays, have dramatically changed

768-771: The Earth's atmosphere. Meanwhile, the need to decarbonize the aviation industry to face the climate crisis has increased research into aircraft powered by alternative fuels, such as ethanol , electricity , hydrogen , and even solar energy , with flying prototypes becoming more common. Civil aviation includes all non-military flying, both general aviation and scheduled air transport . There are five major manufacturers of civil transport aircraft (in alphabetical order): Boeing, Airbus, Ilyushin and Tupolev concentrate on wide-body and narrow-body jet airliners , while Bombardier, Embraer and Sukhoi concentrate on regional airliners . Large networks of specialized parts suppliers from around

816-528: The French War ministry. The report on the trials was not publicized until 1910, as they had been a military secret. In November 1906, Ader claimed to have made a successful flight on October 14, 1897, achieving an "uninterrupted flight" of around 300 metres (980 feet). Although widely believed at the time, these claims were later discredited. The Wright brothers made the first successful powered, controlled and sustained airplane flight on December 17, 1903,

864-524: The Hindenburg was the first to be captured on newsreel. In 1799, Sir George Cayley set forth the concept of the modern airplane as a fixed-wing flying machine with separate systems for lift, propulsion, and control. Otto Lilienthal was the first person to make well-documented, repeated, successful flights with gliders , therefore making the idea of " heavier than air " a reality. Newspapers and magazines published photographs of Lilienthal gliding, favorably influencing public and scientific opinion about

912-689: The United States) they may use radar to see aircraft positions. Becoming an air traffic controller in the United States typically requires an associate or bachelor's degree from the Air Traffic Collegiate Training Initiative. The FAA also requires extensive training, along with medical examinations and background checks. Some controllers are required to work weekend, night, and holiday shifts. There are generally four different types of ATC: ATC

960-653: The air battles over Madrid became too difficult to handle for the LAPE pilots, the Madrid-Barcelona line was replaced by Barcelona- Albacete . Towards the end of February 1939 Republican Air Force Colonel Núñez Mazas issued an order through which the LAPE fleet was concentrated in Monòver (Alicante) —far away from the fronts— in order to avoid the planes falling into enemy hands. The fleet were used to evacuate numerous Spanish Republican civil and military leaders in

1008-418: The cockpits of airliners and, increasingly, of smaller aircraft as well. Pilots can navigate much more accurately and view terrain, obstructions, and other nearby aircraft on a map or through synthetic vision , even at night or in low visibility. On June 21, 2004, SpaceShipOne became the first privately funded aircraft to make a spaceflight , opening the possibility of an aviation market capable of leaving

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1056-573: The country's essential public services. Following a decree issued on 9 January 1928, the creation of a new airline was tendered and two proposals were presented. Iberia , Unión Aérea Española (U.A.E.), Compañía Española de Tráfico Aéreo (C.E.T.A.), the pilot training company Compañía Española de Aviación (C.E.A.) and the airship line Transaérea Colón were merged in order to form CLASSA. Companies with active government contracts, such as Compañía Aérea Jorge Loring , were exempt from joining until their contracts expired, but would join later. It

1104-433: The first jet aircraft and the first liquid-fueled rockets . After World War II, especially in North America, there was a boom in general aviation , both private and commercial, as thousands of pilots were released from military service and many inexpensive war-surplus transport and training aircraft became available. Manufacturers such as Cessna , Piper , and Beechcraft expanded production to provide light aircraft for

1152-642: The first aircraft to transport passengers and cargo over great distances. The best known aircraft of this type were manufactured by the German Zeppelin company. The most successful Zeppelin was the Graf Zeppelin . It flew over one million miles, including an around-the-world flight in August 1929. However, the dominance of the Zeppelins over the airplanes of that period, which had a range of only

1200-409: The first passenger, Charles Furnas, one of their mechanics, on May 14, 1908. During the 1920s and 1930s great progress was made in the field of aviation, including the first transatlantic flight of Alcock and Brown in 1919, Charles Lindbergh 's solo transatlantic flight in 1927, and Charles Kingsford Smith 's transpacific flight the following year. One of the most successful designs of this period

1248-571: The first untethered human lighter-than-air flight on November 21, 1783, of a hot air balloon designed by the Montgolfier brothers . The usefulness of balloons was limited because they could only travel downwind. It was immediately recognized that a steerable, or dirigible , balloon was required. Jean-Pierre Blanchard flew the first human-powered dirigible in 1784 and crossed the English Channel in one in 1785. Rigid airships became

1296-437: The fleets and staff of the companies that had been merged. Compañía Española de Tráfico Aéreo (C.E.T.A.), which had been founded in 1920, ceased to exist at that time. The only exception was U.A.E.'s Sevilla - Granada flight which would continue to be operated by this company until January 1930. On that date the remaining two Junkers G 24s used by U.A.E. joined CLASSA's fleet, while the third had been transferred to CLASSA

1344-406: The introduction of composite materials to make small aircraft lighter and faster. Ultralight and homebuilt aircraft have also become increasingly popular for recreational use, since in most countries that allow private aviation, they are much less expensive and less heavily regulated than certified aircraft. Simple balloons were used as surveillance aircraft as early as the 18th century. Over

1392-531: The introduction of the jet which permitted a major form of transport throughout the world. The word aviation was coined by the French writer and former naval officer Gabriel La Landelle in 1863. He originally derived the term from the verb avier (an unsuccessful neologism for "to fly"), itself derived from the Latin word avis ("bird") and the suffix -ation . There are early legends of human flight such as

1440-1073: The last weeks of the conflict. Finally in April 1939, after the defeat of the Spanish Republican Armed Forces that marked the end of the Civil War, the planes belonging to LAPE's fleet were expropriated by the Francoist government and repainted with the Iberia livery. LAPE was one of the few airlines that used the Douglas DC-1 . Other planes used by LAPE included: Fokker F.VII , Spartan Executive , Caudron C.448 , Breguet 470 , Savoia-Marchetti S.74 , Northrop Delta , Douglas DC-2 , Ford Trimotor , General Aviation GA-43 , Airspeed AS.6J Envoy , de Havilland Dragon Rapide and de Havilland Puss Moth . CLASSA Compañía de Líneas Aéreas Subvencionadas , meaning 'Subsidized Airlines Company', mostly known as CLASSA ,

1488-508: The lines Barcelona-Palma de Mallorca, Barcelona-Valencia and Valencia-Palma de Mallorca were operated, although with interruptions. By June 1936 the company's Canary Islands line included an air service between Las Palmas and Tenerife. The Spanish Republican Airline operated even during the Spanish Civil War in an intermittent and increasingly haphazard manner. Although a great part of the planes of its fleet were requisitioned by

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1536-638: The new airline viable. The first Douglas DC-2 , part of the modernization of the fleet inherited from CLASSA, arrived in Madrid-Barajas in March 1935. In 1932 and 1933 LAPE's air service was restricted to the Madrid-Sevilla and Madrid-Barcelona lines. In March 1934 flights to the Canary Islands were restarted and a few months later in September the line Madrid-Valencia was inaugurated. In 1935

1584-497: The new middle-class market. By the 1950s, the development of civil jets grew, beginning with the de Havilland Comet , though the first widely used passenger jet was the Boeing 707 , because it was much more economical than other aircraft at that time. At the same time, turboprop propulsion started to appear for smaller commuter planes, making it possible to serve small-volume routes in a much wider range of weather conditions. Since

1632-605: The only aircraft in the fleet with a radio. The plane landed on 20 May at Los Rodeos Airport (now Tenerife Norte) in Tenerife Island . Following the proclamation of the Second Spanish Republic in 1931 LAPE (Líneas Aéreas Postales Españolas) was established to replace CLASSA and on 23 September 1931, CLASSA's contract with the Spanish government was cancelled, however CLASSA continued flying under

1680-412: The operation of aircraft, are reduced and controlled to an acceptable level. It encompasses the theory, practice, investigation, and categorization of flight failures, and the prevention of such failures through regulation, education, and training. It can also be applied in the context of campaigns that inform the public as to the safety of air travel. A maintenance, repair, and overhaul organization (MRO)

1728-551: The possibility of flying machines becoming practical. Lilienthal's work led to him developing the concept of the modern wing. His flight attempts in Berlin in 1891 are seen as the beginning of human flight and the " Lilienthal Normalsegelapparat " is considered to be the first airplane in series production, making the Maschinenfabrik Otto Lilienthal in Berlin the first air plane production company in

1776-405: The previous year. U.A.E had sold all its CLASSA shares to Jorge Loring on 24 May 1929, at which time Loring became the primary de facto shareholder of the new company but ceased to exist once their Sevilla - Tetuán - Larache line was taken over by CLASSA on 31 January 1931. In May 1930 CLASSA made the first commercial flight to the Canary Islands using one of its Ford 4-AT trimotors ,

1824-568: The second year of the Spanish Republic , and in those years did not have any air accidents . CLASSA was an airline established following the creation of the Higher Aeronautic Council (Consejo Superior de Aeronáutica) through a decree issued on 9 April 1927. The newly created council existed to unify existing civil airlines which reflected General Primo de Rivera 's policy of establishing state monopolies to run

1872-615: The stories of Icarus in Greek myth, Jamshid and Shah Kay Kāvus in Persian myth, and the flying automaton of Archytas of Tarentum (428–347 BC). Later, somewhat more credible claims of short-distance human flights appear, such as the winged flights of Abbas ibn Firnas (810–887, recorded in the 17th century), Eilmer of Malmesbury (11th century, recorded in the 12th century), and the hot-air Passarola of Bartholomeu Lourenço de Gusmão (1685–1724). The modern age of aviation began with

1920-603: The world support these manufacturers, who sometimes provide only the initial design and final assembly in their own plants. The Chinese ACAC consortium has also recently entered the civil transport market with its Comac ARJ21 regional jet. Until the 1970s, most major airlines were flag carriers , sponsored by their governments and heavily protected from competition. Since then, open skies agreements have resulted in increased competition and choice for consumers, coupled with falling prices for airlines. The combination of high fuel prices, low fares, high salaries, and crises such as

1968-426: The world. Lilienthal is often referred to as either the "father of aviation" or "father of flight". Early dirigible developments included machine-powered propulsion ( Henri Giffard , 1852), rigid frames ( David Schwarz , 1896) and improved speed and maneuverability ( Alberto Santos-Dumont , 1901) There are many competing claims for the earliest powered, heavier-than-air flight. The first recorded powered flight

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2016-442: The years, military aircraft have been built to meet ever increasing capability requirements. Manufacturers of military aircraft compete for contracts to supply their government's arsenal. Aircraft are selected based on factors like cost, performance, and the speed of production. Aviation safety means the state of an aviation system or organization in which risks associated with aviation activities, related to, or in direct support of

2064-656: Was a Spanish airline based in Madrid , Spain . The airline was established as part of the Miguel Primo de Rivera government's efforts to establish state-controlled monopolies controlling essential services. As had been done with CAMPSA and with CTNE , a monopoly was created by merging existing Spanish air transport companies. CLASSA's inaugural flight took place on 27 May 1929 between Getafe (Madrid) and Sevilla although regular operations wouldn't officially start until November. CLASSA ceased operations in 1933,

2112-470: Was carried out by Clément Ader on October 9, 1890, in his bat-winged, fully self-propelled fixed-wing aircraft , the Ader Éole . It was reportedly the first manned, powered, heavier-than-air flight of a significant distance (50 m (160 ft)) but insignificant altitude from level ground. Seven years later, on October 14, 1897, Ader's Avion III was tested without success in front of two officials from

2160-419: Was formally constituted as a company on 13 March 1929, with the full name Compañía de Líneas Aéreas Subvencionadas, Sociedad Anónima , but it would be known by the acronym 'CLASSA', which officially began operations of the lines flown by the previous companies on 25 November 1929. However, it was decided that the official date of its constitution would be 25 May 1929, which was the date in which CLASSA took over

2208-415: Was highly flammable and allowed static electricity to build up in the airship. Changes to the coating formulation reduced the risk of further Hindenburg type accidents. Although there have been periodic initiatives to revive their use, airships have seen only niche application since that time. There had been previous airship accidents that were more fatal, for instance, a British R38 on 23 August 1921, but

2256-551: Was the Douglas DC-3 , which became the first airliner to be profitable carrying passengers exclusively, starting the modern era of passenger airline service. By the beginning of World War II, many towns and cities had built airports, and there were numerous qualified pilots available. During World War II one of the first jet engines was developed by Hans con Ohain, and accomplished the world's first jet-powered flight in 1939. The war brought many innovations to aviation, including

2304-821: Was the Tenerife airport disaster on March 27, 1977, when 583 people died when two Boeing 747 jumbo jets, operated by Pan Am and KLM collided on a runway in Los Rodeos airport, now known as Tenerife North. An aviation incident is defined as an occurrence, other than an accident, associated with the operation of an aircraft that affects or could affect the safety of operations. Air traffic control (ATC) involves communication with aircraft to help maintain separation – that is, they ensure that aircraft are sufficiently far enough apart horizontally or vertically for no risk of collision. Controllers may co-ordinate position reports provided by pilots, or in high traffic areas (such as

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