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67-508: During the early 1940s, Douglas Aircraft Company developed a configuration for high-performance twin-engined aircraft, in which the engines were buried in the fuselage, driving propellers mounted behind a conventional tailplane, in order to reduce drag by eliminating drag inducing objects such as engines from the wing. This layout was first demonstrated in the Douglas XB-42 Mixmaster bomber, which first flew in 1944, showing

134-671: A Public Private Partnership wherein Adani Group , the operator pays Airports Authority of India , the owner of the airports, a predetermined sum of money based on the number of passengers handled by the airports. The rest of India's airports are managed by the Airports Authority of India . In Pakistan nearly all civilian airports are owned and operated by the Pakistan Civil Aviation Authority except for Sialkot International Airport which has

201-551: A helipad , and often includes adjacent utility buildings such as control towers , hangars and terminals , to maintain and monitor aircraft. Larger airports may have airport aprons , taxiway bridges , air traffic control centres, passenger facilities such as restaurants and lounges , and emergency services . In some countries, the US in particular, airports also typically have one or more fixed-base operators , serving general aviation . Airport operations are extremely complex, with

268-574: A 30% reduction in drag compared with a conventional twin-engined layout, while eliminating handling problems due to asymmetric thrust when flying on one engine. Owing to the initial success of the XB-42, Douglas adopted this promising new layout for a medium-range airliner , the DC-8 and a five-seat light aircraft suitable for executive or air charter use, the Model 1015 or Cloudster II . The Cloudster II

335-598: A complicated system of aircraft support services, passenger services, and aircraft control services contained within the operation. Thus airports can be major employers, as well as important hubs for tourism and other kinds of transit. Because they are sites of operation for heavy machinery, a number of regulations and safety measures have been implemented in airports, in order to reduce hazards. Additionally, airports have major local environmental impacts, as both large sources of air pollution , noise pollution and other environmental impacts, making them sites that acutely experience

402-668: A division. McDonnell Douglas merged with Boeing in 1997. The company was founded as the Douglas Company by Donald Wills Douglas Sr. on July 22, 1921, in Santa Monica, California , following dissolution of the Davis-Douglas Company. An early claim to fame was the first circumnavigation of the world by air in Douglas airplanes in 1924. In 1923, the U.S. Army Air Service was interested in carrying out

469-534: A heart as a reference to the Clan Douglas . After the success of the DWC, the company adopted a logo that showed three airplanes circling a globe. The logo eventually evolved into an aircraft, a missile, and a globe. This logo was later adopted by McDonnell Douglas in 1967, and became the basis of Boeing 's current logo after their merger in 1997. Douglas Aircraft designed and built a wide variety of aircraft for

536-629: A mission to circumnavigate the Earth for the first time by aircraft , a program called "World Flight". Donald Douglas proposed a modified Douglas DT to meet the Army's needs. The two-place, open cockpit DT biplane torpedo bomber had previously been produced for the U.S. Navy . The DTs were taken from the assembly lines at the company's manufacturing plants in Rock Island, Illinois , and Dayton, Ohio , to be modified. The modified aircraft known as

603-528: A mistake in handling of the passenger, such as unreasonable delays or mishandling of checked baggage. Airline lounges frequently offer free or reduced cost food, as well as alcoholic and non-alcoholic beverages. Lounges themselves typically have seating , showers, quiet areas, televisions, computer, Wi-Fi and Internet access, and power outlets that passengers may use for their electronic equipment. Some airline lounges employ baristas, bartenders and gourmet chefs. Airlines sometimes operate multiple lounges within

670-763: A number of aircraft including the C-47 Skytrain, the DB-7 (known as the A-20, Havoc or Boston), the SBD Dauntless dive bomber , and the A-26 Invader . Douglas Aircraft suffered cutbacks at the end of the war, with an end to government aircraft orders and a surplus of aircraft. It was necessary to cut heavily into its workforce, letting go of nearly 100,000 workers. The United States Army Air Forces established 'Project RAND' (Research ANd Development) with

737-490: A plane of 100,000 pounds and the price increases with weight. Non-aeronautical revenue is gained through things other than aircraft operations. It includes lease revenue from compatible land-use development, non-aeronautical building leases, retail and concession sales, rental car operations, parking and in-airport advertising. Concession revenue is one big part of non-aeronautical revenue airports makes through duty free , bookstores, restaurants and money exchange. Car parking

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804-460: A retail store upon exiting security. Airport planners sometimes incorporate winding routes within these stores such that passengers encounter more goods as they walk towards their gate. Planners also install artworks next to the airport's shops in order to draw passengers into the stores. Apart from major fast food chains, some airport restaurants offer regional cuisine specialties for those in transit so that they may sample local food without leaving

871-641: A runway that is only 122 m (400 ft) long. In the United States, the minimum dimensions for dry, hard landing fields are defined by the FAR Landing And Takeoff Field Lengths . These include considerations for safety margins during landing and takeoff. The longest public-use runway in the world is at Qamdo Bamda Airport in China. It has a length of 5,500 m (18,045 ft). The world's widest paved runway

938-409: A series of gates , which provide passengers with access to the plane. Passenger facilities typically include: Links between passenger facilities and aircraft include jet bridges or airstairs . Baggage handling systems transport baggage from the baggage drop-off to departing planes, and from arriving planes to the baggage reclaim. The area where the aircraft parks to load passengers and baggage

1005-529: A wholly owned subsidiary of McDonnell Douglas, with Douglas' son, Donald Wills Douglas Jr. , as president. Later, former McDonnell president David S. Lewis became chairman of Douglas Aircraft. His successful turnaround of the division allowed him to become president of McDonnell Douglas in 1969. Meanwhile, Douglas' space and missiles division became part of a new subsidiary called McDonnell Douglas Astronautics Company. McDonnell Douglas later merged with its rival Boeing in 1997. Boeing merged Douglas Aircraft into

1072-488: Is a growing source of revenue for airports, as more people use the parking facilities of the airport. O'Hare International Airport in Chicago charges $ 2 per hour for every car. Many airports are local monopolies. To prevent them from abusing their market power, governments regulate how much airports may charge to airlines, using price-cap regulation . Airports are divided into landside and airside zones. The landside

1139-486: Is a series of highly complex operations that requires managing frequent traffic that moves in all three dimensions. A "towered" or "controlled" airport has a control tower where the air traffic controllers are based. Pilots are required to maintain two-way radio communication with the controllers, and to acknowledge and comply with their instructions. A " non-towered " airport has no operating control tower and therefore two-way radio communications are not required, though it

1206-598: Is also common to connect an airport and a city with rapid transit , light rail lines or other non-road public transport systems. Some examples of this would include the AirTrain JFK at John F. Kennedy International Airport in New York , Link light rail that runs from the heart of downtown Seattle to Seattle–Tacoma International Airport , and the Silver Line T at Boston 's Logan International Airport by

1273-500: Is at Ulyanovsk Vostochny Airport in Russia and is 105 m (344 ft) wide. As of 2009 , the CIA stated that there were approximately 44,000 "airports or airfields recognizable from the air" around the world, including 15,095 in the US, the US having the most in the world. Most of the world's large airports are owned by local, regional, or national government bodies who then lease

1340-404: Is called a heliport . An airport for use by seaplanes and amphibious aircraft is called a seaplane base . Such a base typically includes a stretch of open water for takeoffs and landings , and seaplane docks for tying-up. An international airport has additional facilities for customs and passport control as well as incorporating all the aforementioned elements. Such airports rank among

1407-648: Is common for airports to provide moving walkways , buses, and rail transport systems. Some airports like Hartsfield–Jackson Atlanta International Airport and London Stansted Airport have a transit system that connects some of the gates to a main terminal. Airports with more than one terminal have a transit system to connect the terminals together, such as John F. Kennedy International Airport , Mexico City International Airport and London Gatwick Airport . Airport operations are made possible by an organized network of trained personnel , specialized equipment, and spatial data . After thousands of ground operations staff left

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1474-472: Is good operating practice for pilots to transmit their intentions on the airport's common traffic advisory frequency (CTAF) for the benefit of other aircraft in the area. The CTAF may be a Universal Integrated Community (UNICOM), MULTICOM, Flight Service Station (FSS), or tower frequency. The majority of the world's airports are small facilities without a tower. Not all towered airports have 24/7 ATC operations. In those cases, non-towered procedures apply when

1541-660: Is known as an apron or ramp (or incorrectly, "the tarmac"). Airport security normally requires baggage checks, metal screenings of individual persons, and rules against any object that could be used as a weapon. Since the September 11 attacks and the Real ID Act of 2005 , airport security has dramatically increased and gotten tighter and stricter than ever before. Most major airports provide commercial outlets for products and services. Most of these companies, many of which are internationally known brands, are located within

1608-658: Is managed by the quasi-private firm Fraport . While in India GMR Group operates, through joint ventures, Indira Gandhi International Airport and Rajiv Gandhi International Airport . Bengaluru International Airport is controlled by Fairfax . Chhatrapati Shivaji International Airport , Chaudhary Charan Singh International Airport , Mangalore International Airport , Thiruvananthapuram International Airport , Lokpriya Gopinath Bordoloi International Airport , Jaipur International Airport , Sardar Vallabhbhai Patel International Airport are operated by Adani Group through

1675-489: Is subject to fewer special laws and is part of the public realm, while access to the airside zone is tightly controlled. Landside facilities may include publicly accessible airport check-in desks, shops and ground transportation facilities. The airside area includes all parts of the airport around the aircraft, and the parts of the buildings that are restricted to staff, and sections of these extended to travelling, airside shopping , dining, or waiting passengers. Depending on

1742-471: Is to say, all airports are aerodromes, but not all aerodromes are airports. In jurisdictions where there is no legal distinction between aerodrome and airport , which term to use in the name of an aerodrome may be a commercial decision. In US technical/legal usage, landing area is used instead of aerodrome , and airport means "a landing area used regularly by aircraft for receiving or discharging passengers or cargo". An airport solely serving helicopters

1809-657: The B-17 Flying Fortress . After the war, Douglas built another Boeing design under license, the B-47 Stratojet turbojet -powered bomber, using a government-owned factory in Marietta, Georgia . World War II was a major boost for Douglas. Douglas ranked fifth among United States corporations in the value of wartime production contracts. The company produced almost 30,000 aircraft from 1942 to 1945, and its workforce swelled to 160,000. The company produced

1876-852: The Boeing Commercial Airplanes division, and retired the Douglas Aircraft name after 76 years. The last Long Beach -built commercial aircraft, the Boeing 717 (third generation version of the Douglas DC-9), ceased production in May 2006. By 2011, the Boeing C-17 Globemaster III was the last aircraft being assembled at the Long Beach facility; the final C-17 was assembled in late 2015. However,

1943-503: The Massachusetts Bay Transportation Authority (MBTA). Such a connection lowers risk of missed flights due to traffic congestion . Large airports usually have access also through controlled-access highways ('freeways' or 'motorways') from which motor vehicles enter either the departure loop or the arrival loop. The distances passengers need to move within a large airport can be substantial. It

2010-594: The Northrop Corporation . The company retained its military market and expanded into amphibian airplanes in the late 1920s, also moving its facilities to Clover Field at Santa Monica, California . The Santa Monica complex was so large, the mail girls used roller skates to deliver the intracompany mail. By the end of World War II, Douglas had facilities at Santa Monica, El Segundo , Long Beach , and Torrance, California , Tulsa and Midwest City , Oklahoma, and Chicago, Illinois . On November 30, 1928,

2077-676: The Saturn IB and Saturn V rockets. In 1967, the company was struggling to expand production to meet demand for DC-8 and DC-9 airliners and the A-4 Skyhawk military attack aircraft. The company was also struggling with quality and cash flow problems and DC-10 development costs, as well as shortages due to the Vietnam War . Under the circumstances, Douglas was very receptive to an offer from McDonnell Aircraft Corporation . On April 28, 1967, after almost four years of merger talks,

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2144-467: The environmental effects of aviation . Airports are also vulnerable infrastructure to extreme weather , climate change caused sea level rise and other disasters. The terms aerodrome , airfield , and airstrip also refer to airports, and the terms heliport , seaplane base , and STOLport refer to airports dedicated exclusively to helicopters , seaplanes , and short take-off and landing aircraft. In colloquial use in certain environments,

2211-645: The "DC" (Douglas Commercial) series of commercial aircraft, including what is often regarded as the most significant transport aircraft ever made: the Douglas DC-3 , which was also produced as a military transport known as the C-47 Skytrain or "Dakota" in British service. Many Douglas aircraft have long service lives. During World War II , Douglas joined the BVD ( Boeing - Vega -Douglas) consortium to produce

2278-739: The AATF, as well as pays for the FAA's Operation and Maintenance (O&M) account. The funding of these accounts are dependent on the taxes the airports generate of revenues. Passenger tickets , fuel , and cargo tax are the taxes that are paid by the passengers and airlines help fund these accounts. Airports revenues are divided into three major parts: aeronautical revenue, non-aeronautical revenue, and non-operating revenue. Aeronautical revenue makes up 50% in 2021 (from 54% and 48% in 2019 and 2020, non-aeronautical revenue makes up 34% (40%, 39% in previous years), and non-operating revenue makes up 16% (6%, 14%) of

2345-672: The Douglas World Cruiser (DWC), also was the first major project for Jack Northrop who designed the fuel system for the series. After the prototype was delivered in November 1923, upon the successful completion of tests on 19 November, the Army commissioned Douglas to build four production series aircraft. Due to the demanding expedition ahead, spare parts, including 15 extra Liberty L-12 engines, 14 extra sets of pontoons, and enough replacement airframe parts for two more aircraft were chosen. These were sent to airports along

2412-413: The Douglas' former logo is preserved on the facility though no longer used by Boeing. Airport An airport is an aerodrome with extended facilities, mostly for commercial air transport . They usually consist of a landing area , which comprises an aerially accessible open space including at least one operationally active surface such as a runway for a plane to take off and to land or

2479-501: The FAA under the Code of Federal Regulations Title 14 Part 139, "Certification of Commercial Service Airports" but maintained by the local airport under the regulatory authority of the FAA. Despite the reluctance to privatize airports in the US (contrary to the FAA sponsoring a privatization program since 1996), the government-owned, contractor-operated (GOCO) arrangement is the standard for

2546-798: The North American leg of the flight). After the success of this flight, the Army Air Service ordered six similar aircraft as observation aircraft. The success of the DWC established the Douglas Aircraft Company among the major aircraft companies of the world and led it to adopt the motto "First Around the World – First the World Around". Douglas initially used a logo that combined two letter Ds with two wings extended outwards, and two Ds placed back to back to form

2613-488: The U.S. Navy — the straight-winged F3D Skyknight in 1948 and then the more "jet age" style F4D Skyray in 1951. Douglas also made commercial jets, producing the Douglas DC-8 in 1958 to compete with the new Boeing 707 . Douglas was a pioneer in related fields, such as ejection seats , air-to-air missiles , surface-to-air missiles , and air-to-surface missiles , launch rockets, bombs, and bomb racks. The company

2680-546: The U.S. military, including the Navy, Army Air Forces, Marine Corps, Air Force, and Coast Guard. The company initially built torpedo bombers for the U.S. Navy, but it developed a number of different versions of these aircraft, including reconnaissance planes and airmail aircraft. Within five years, the company was building about 100 aircraft annually. Among the early employees at Douglas were Ed Heinemann , "Dutch" Kindelberger , Carl Cover , and Jack Northrop , who later founded

2747-490: The aircraft. Similarly, import cargo that is offloaded needs to be in bond before the consignee decides to take delivery. Areas have to be kept aside for examination of export and import cargo by the airport authorities. Designated areas or sheds may be given to airlines or freight forward ring agencies. Every cargo terminal has a landside and an airside. The landside is where the exporters and importers through either their agents or by themselves deliver or collect shipments while

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2814-414: The airline's clubs. Premium services may sometimes be open to passengers who are members of a different airline's frequent flyer program. This can sometimes be part of a reciprocal deal, as when multiple airlines are part of the same alliance, or as a ploy to attract premium customers away from rival airlines. Sometimes these premium services will be offered to a non-premium passenger if the airline has made

2881-600: The airport that are available for rent by the hour. The smallest type is the capsule hotel popular in Japan. A slightly larger variety is known as a sleep box . An even larger type is provided by the company YOTEL . Some airports provide smoking areas and prayer areas. Airports may also contain premium and VIP services. The premium and VIP services may include express check-in and dedicated check-in counters. These services are usually reserved for first and business class passengers, premium frequent flyers , and members of

2948-547: The airport to private corporations who oversee the airport's operation. For example, in the UK the state-owned British Airports Authority originally operated eight of the nation's major commercial airports – it was subsequently privatized in the late 1980s, and following its takeover by the Spanish Ferrovial consortium in 2006, has been further divested and downsized to operating just Heathrow. Germany's Frankfurt Airport

3015-551: The airport, passengers and staff must be checked by security or border control before being permitted to enter the airside zone. Conversely, passengers arriving from an international flight must pass through border control and customs to access the landside area, in which they exit, unless in airside transit. Most multi-terminal airports have (variously termed) flight/passenger/air connections buses, moving walkways and/or people movers for inter-terminal airside transit. Their airlines can arrange for baggage to be routed directly to

3082-446: The airport. Some airport structures include on-site hotels built within or attached to a terminal building. Airport hotels have grown popular due to their convenience for transient passengers and easy accessibility to the airport terminal. Many airport hotels also have agreements with airlines to provide overnight lodging for displaced passengers. Major airports in such countries as Russia and Japan offer miniature sleeping units within

3149-726: The airside is where loads are moved to or from the aircraft. In addition, cargo terminals are divided into distinct areas – export, import, and interline or transshipment. Airports require parking lots, for passengers who may leave the cars at the airport for a long period of time. Large airports will also have car-rental firms, taxi ranks, bus stops and sometimes a train station. Many large airports are located near railway trunk routes for seamless connection of multimodal transport , for instance Frankfurt Airport , Amsterdam Airport Schiphol , London Heathrow Airport , Tokyo Haneda Airport , Tokyo Narita Airport , Hamad International Airport , London Gatwick Airport and London Stansted Airport . It

3216-467: The company was reorganized as the Douglas Aircraft Company. In 1934, Douglas produced a commercial twin-engined transport plane , the Douglas DC-2 , followed by the famous DC-3 in 1936. The wide range of aircraft produced by Douglas included airliners , light and medium bombers , fighter aircraft , transports, reconnaissance aircraft, and experimental aircraft. The company is most famous for

3283-534: The departure areas. These include clothing boutiques and restaurants and in the US amounted to $ 4.2 billion in 2015. Prices charged for items sold at these outlets are generally higher than those outside the airport. However, some airports now regulate costs to keep them comparable to "street prices". This term is misleading as prices often match the manufacturers' suggested retail price (MSRP) but are almost never discounted. Many new airports include walkthrough duty-free stores that require air passengers to enter

3350-645: The distinction of being the first privately owned public airport in Pakistan and South Asia . In the US, commercial airports are generally operated directly by government entities or government-created airport authorities (also known as port authorities ), such as the Los Angeles World Airports authority that oversees several airports in the Greater Los Angeles area , including Los Angeles International Airport . In Canada,

3417-473: The facilities used on a flight like water, food, wifi and shows which is paid while paying for an airline ticket . Aircraft parking is also a major revenue source for airports. Aircraft are parked for a certain amount of time before or after takeoff and have to pay to park there. Every airport has its own rates of parking, for example, John F Kennedy airport in New York City charges $ 45 per hour for

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3484-610: The federal authority, Transport Canada, divested itself of all but the remotest airports in 1999/2000. Now most airports in Canada are operated by individual legal authorities, such as Vancouver International Airport Authority (although still owned by Transport Canada); some airports, such as Boundary Bay Airport and Pitt Meadows Airport, are municipally owned. Many US airports still lease part or all of their facilities to outside firms, who operate functions such as retail management and parking. All US commercial airport runways are certified by

3551-489: The industry during the COVID-19 pandemic , there have been discussions on the need for systemic improvements in three primary areas: The surfaces where ground operations occur are generally divided into three regions: runways , taxiways , and aprons . Air traffic control (ATC) is the task of managing aircraft movements and making sure they are safe, orderly and expeditious. At the largest airports, air traffic control

3618-469: The most complex and largest of all built typologies, with 15 of the top 50 buildings by floor area being airport terminals. Smaller or less-developed airfields, which represent the vast majority, often have a single runway shorter than 1,000 m (3,300 ft). Larger airports for airline flights generally have paved runways of 2,000 m (6,600 ft) or longer. Skyline Airport in Inkom, Idaho , has

3685-602: The objective of looking into long-range planning of future weapons. In March 1946, Douglas Aircraft Company was granted the contract to research on intercontinental warfare. Project RAND later become the RAND Corporation . Douglas continued to develop new aircraft, including the successful four-engined Douglas DC-6 (1946) and its last propeller-driven commercial aircraft, the Douglas DC-7 (1953). The company had moved into jet propulsion, producing its first for

3752-558: The one airport terminal allowing ultra-premium customers, such as first class customers, additional services, which are not available to other premium customers. Multiple lounges may also prevent overcrowding of the lounge facilities. In addition to people, airports move cargo around the clock. Cargo airlines often have their own on-site and adjacent infrastructure to transfer parcels between ground and air. Cargo Terminal Facilities are areas where international airports export cargo has to be stored after customs clearance and prior to loading

3819-494: The operation of commercial airports in the rest of the world. The Airport & Airway Trust Fund (AATF) was created by the Airport and Airway Development in 1970 which finances aviation programs in the United States. Airport Improvement Program (AIP), Facilities and Equipment (F&E), and Research, Engineering, and Development (RE&D) are the three major accounts of Federal Aviation Administration which are financed by

3886-425: The passenger's destination. Most major airports issue a secure keycard , an airside pass to employees, to assist in their reliable, standardized and efficient verification of identity. A terminal is a building with passenger facilities. Small airports have one terminal. Large ones often have multiple terminals, though some large airports, like Amsterdam Airport Schiphol , still have one terminal. The terminal has

3953-477: The route. The last of these aircraft was delivered to the U.S. Army on March 11, 1924. The four aircraft left Seattle , Washington, on April 6, 1924, flying west, and two of these returned there on 28 September to great acclaim, while one plane had been lost under fog conditions, and another was forced down over the Atlantic and sank (the DWC prototype was then rechristened, and joined the other two in completing

4020-643: The selling price had risen from an originally planned $ 30,000 to $ 68,000, rendering the aircraft commercially unviable. Data from McDonnell Douglas Aircraft since 1920 General characteristics Performance Aircraft of comparable role, configuration, and era Douglas Aircraft Company The Douglas Aircraft Company was an American aerospace and defense company based in Southern California . Founded in 1921 by Donald Wills Douglas Sr. , it merged with McDonnell Aircraft in 1967 to form McDonnell Douglas , where it operated as

4087-471: The terms airport and aerodrome are often interchanged. However, in general, the term airport may imply or confer a certain stature upon the aviation facility that other aerodromes may not have achieved. In some jurisdictions, airport is a legal term of art reserved exclusively for those aerodromes certified or licensed as airports by the relevant civil aviation authority after meeting specified certification criteria or regulatory requirements. That

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4154-470: The total revenue of airports. Aeronautical revenue are generated through airline rents and landing, passenger service, parking, and hangar fees. Landing fees are charged per aircraft for landing an airplane in the airport property. Landing fees are calculated through the landing weight and the size of the aircraft which varies but most of the airports have a fixed rate and a charge extra for extra weight. Passenger service fees are charges per passengers for

4221-403: The two companies merged as McDonnell Douglas Corporation . The two companies seemed to be a good match for each other. McDonnell was a major defense contractor, but had almost no civilian business. Douglas' commercial contracts would allow McDonnell to withstand any downturns in procurement. Conversely, McDonnell had enough revenue to help solve Douglas' financial problems; soon after the merger

4288-451: The wing directed cooling air to the engines, which then exhausted beneath the fuselage. The Cloudster II made its maiden flight on March 12, 1947. Although the aircraft's performance and handling were good, it suffered from excessive vibration, and overheated when it was on the ground. Further development was abandoned late in 1947, with the prototype having flown only twice, as the post-war civil flying market had not developed as hoped, while

4355-408: Was a low-winged monoplane with a retractable nosewheel undercarriage . The pilot and four passengers sat in an enclosed cabin well ahead of the unswept, laminar flow wing. Two air-cooled piston engines were buried in the rear fuselage, driving a single eight foot diameter twin-bladed propeller, mounted behind the empennage via driveshafts taken from P-39 fighters. Two air intakes forward of

4422-460: Was announced, McDonnell bought 1.5 million shares of Douglas stock to help Douglas meet "immediate financial requirements". The merged company was based at McDonnell's facility in St. Louis, Missouri . It adopted a modified version of Douglas' logo. Donald Wills Douglas Sr. became honorary chairman of the merged company, a post he would hold until his death in 1981. Douglas Aircraft Company continued as

4489-566: Was ready to enter the new missile business during the 1950s. Douglas moved from producing air-to-air rockets and missiles to entire missile systems under the 1956 Nike missile program and became the main contractor for the Skybolt air-launched ballistic missile program and the Thor ballistic missile program. Douglas also earned contracts from NASA, most notably for designing the S-IVB stage of

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