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Martin 4-0-4
The Martin 4-0-4 is an American pressurized passenger airliner built by the Glenn L. Martin Company. In addition to airline use initially in the United States, it was used by the United States Coast Guard and United States Navy as the RM-1G (later as the VC-3A). Design and development When production of the earlier Martin 2-0-2 was stopped due to problems with wing structural failure the company decided to re-wing an improved version (which had already flown as the Martin 3-0-3 in 1947). The new aircraft was the Martin 4-0-4. It had structural changes to the wings, pressurization and was lengthened slightly to take 40 passengers. Like the earlier 2-0-2, the 4-0-4 was a cantilever monoplane with a standard tail unit (cantilever tailplane and single vertical stabilizer). It had an airstair in the lower tail section for passenger boarding and disembarkation, retractable tricycle landing gear and was powered by two Pratt & Whitney R-2800-CB16 radial piston engines. Operational his ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WikiProject Aircraft
A WikiProject, or Wikiproject, is an affinity group for contributors with shared goals within the Wikimedia movement. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within Wikimedia project, sibling projects such as Wiktionary, Wikiquote, Wikidata, and Wikisource. They also exist in different languages, and translation of articles is a form of their collaboration. During the COVID-19 pandemic, CBS News noted the role of Wikipedia's WikiProject Medicine in maintaining the accuracy of articles related to the disease. Another WikiProject that has drawn attention is WikiProject Women Scientists, which was profiled by ''Smithsonian Magazine, Smithsonian'' for its efforts to improve coverage of women scientists which the profile noted had "helped increase the number of female scientists on Wikipedia from around 1,600 to over 5,000". On Wikipedia Some Wikipedia WikiProjects are substantial enough to engage in cooperative activities with outsi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radial Engine
The radial engine is a reciprocating engine, reciprocating type internal combustion engine, internal combustion engine configuration in which the cylinder (engine), cylinders "radiate" outward from a central crankcase like the spokes of a wheel. It resembles a stylized Star polygon, star when viewed from the front, and is called a "star engine" in some other languages. The radial configuration was commonly used for aircraft engines before gas turbine engines became predominant. Engine operation Since the axes of the cylinders are coplanar, the connecting rods cannot all be directly attached to the crankshaft unless mechanically complex forked connecting rods are used, none of which have been successful. Instead, the pistons are connected to the crankshaft with a master-and-articulating-rod assembly. One piston, the uppermost one in the animation, has a master rod with a direct attachment to the crankshaft. The remaining pistons pin their connecting rods' attachments to rings ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ozark Air Lines
Ozark Air Lines was a local service carrier (originally known as a feeder airline) in the United States that operated from 1950 until 1986, when it was purchased by Trans World Airlines (TWA). Ozark got a second chance to be an airline when the carrier that won the routes for which Ozark applied, Parks Air Lines, failed to start them in a timely manner. Parks had its rights revoked, Ozark won not only the routes it previously applied for, but others as well. Parks merged into Ozark and Ozark (then without any airline operations) took over the Parks operation and the single route over which Parks had recently started service, thereby launching Ozark. Ozark over time became a jet carrier with a hub in St. Louis. In 2001, TWA was merged into American Airlines. A smaller regional airline that used the Ozark name (and whose operating certificate was purchased by Great Plains Airlines) operated in 2000–2001. From 1950 until 1986, Ozark's headquarters was located at St. Louis Lamb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piedmont Airlines (1948–1989)
Piedmont Airlines was a United States local service carrier, a scheduled carrier that operated from 1948 until it merged with USAir in 1989. Its headquarters were at One Piedmont Plaza in Winston-Salem, North Carolina, a building that is now part of Wake Forest University."World Airline Directory." ''Flight International''. April 1, 1989113 In April 1989, shortly before it merged into USAir, Piedmont had 22,000 employees. In September 1988 it flew to 95 airports from hubs in the eastern United States; its commuter and regional affiliates flew turboprop aircraft via code sharing agreements to 39 more airports. History The company that would become Piedmont Airlines was founded by Thomas Henry Davis (March 15, 1918 – April 22, 1999) in Winston-Salem, North Carolina in 1940, when Davis purchased Camel City Flying Service and changed the name to Piedmont Aviation. Piedmont originally operated as an airplane repair service and a training school for pilots in the War Department Ci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hughes Airwest
Hughes Air Corporation, doing business as Hughes Airwest, was a local service carrier from 1970 to 1980 in the Western United States. It was backed by Howard Hughes' Summa Corporation. Its original name in 1968 was Air West and the air carrier was owned by Nick Bez. Hughes Airwest flew routes in the western U.S. and to several destinations in Mexico and Canada; its headquarters were on the grounds of San Francisco International Airport (SFO) in unincorporated San Mateo County, California. With distinctive all-yellow aircraft, the company slogan was ''Top Banana in the West''; Hughes Airwest was purchased by Republic Airlines in 1980, which in turn was merged into Northwest Airlines in 1986. Northwest Airlines was then merged into Delta Air Lines in 2010. History On April 17, 1968, three earlier local service carriers in the western U.S. merged to form Air West: * Pacific Air Lines, which previously operated as Southwest Airways when it was founded in 1941, was bas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
West Coast Airlines
West Coast Airlines was a United States local service carrier, a scheduled airline certificated by the federal Civil Aeronautics Board (CAB), linking small cities in the Pacific Northwest with larger cities in Washington, Oregon, Idaho, Utah, Montana, California and north to Alberta in Canada. It was headquartered in the Westlake area of Seattle, Washington. History West Coast was formed in 1941 and acquired fellow local service carrier Empire Air Lines in 1952. The company was based at Boeing Field in Seattle and began scheduled passenger service in 1946 with a fleet of Douglas DC-3s, marketed as ''Scenicliners''. A promotional film produced for the company in the 1960s said that in 1946 the federal Civil Aeronautics Board (CAB) granted the first regional airline certificate to West Coast Airlines as local service air carrier. In July 1953, West Coast scheduled flights to 32 airports in Washington, Oregon, and Idaho; in May 1968 it flew to 36 airports including 29 in tho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bonanza Air Lines
Bonanza Air Lines was a local service carrier, a US scheduled airline focused on smaller routes in the Western United States (and eventually Mexico) from 1949 until it merged with two other local service airlines to form Air West in 1968. Its headquarters was initially Las Vegas, Nevada, and moved to Phoenix, Arizona in 1966. The company started as Bonanza Air Service, a charter operator in Las Vegas, before becoming a Nevada intrastate carrier in 1946 operating between Las Vegas and Reno. In 1949 it obtained Federal certification as a local service (or feeder) airline, starting service between Phoenix and Reno the same year. In the 1950s and early 1960s the airline expanded into Arizona, Southern California and Utah, including Phoenix, Los Angeles and Salt Lake City. Until 1978 Bonanza had the only scheduled nonstop flights between Las Vegas and Reno. It became an international airline just before it merged with Pacific Air Lines and West Coast Airlines to form Air West, fly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific Air Lines
Pacific Air Lines was a local service carrier on the West Coast of the United States that began scheduled passenger flights in the mid-1940s under the name Southwest Airways. The company linked small cities in California with larger cities such as Los Angeles and San Francisco. Flights later operated to Portland, Oregon, and eventually reached Las Vegas and Reno in Nevada. Founded largely with money from investors from the Hollywood motion picture industry, the airline was noted for innovative safety practices and cost-saving procedures. The name Pacific Air Lines passed into history in 1968 in a merger with Bonanza Air Lines and West Coast Airlines, forming Air West, which then became Hughes Airwest following the acquisition of Air West by Howard Hughes. Southwest Airways era (1941–1958) Founding and wartime operations In early 1941 Air Service veteran John Howard "Jack" Connelly and noted Hollywood agent/producer Leland Hayward formed a business partnership that five y ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fairchild Swearingen Metroliner
The Fairchild Swearingen Metroliner (previously the Swearingen Metro and later Fairchild Aerospace Metro) is a 19-seat, Cabin pressurization, pressurized, twin-turboprop airliner first produced by Sino Swearingen Aircraft Corporation, Swearingen Aircraft and later by Fairchild Aircraft at a plant in San Antonio, Texas. Design The Metroliner was an evolution of the Swearingen Merlin turboprop-powered business aircraft. Ed Swearingen, a Texas fixed-base operator, started the developments that led to the Metro through gradual modifications to the Beechcraft Twin Bonanza and Beechcraft Queen Air, Queen Air business aircraft, which he dubbed Excalibur. A new fuselage (but with a similar nose) and Vertical stabilizer, vertical fin were then developed, married to salvaged and rebuilt (Fuel tank#Aircraft, wet) Queen Air wings and Horizontal stabilizer, horizontal tails, and Twin Bonanza landing gear; this became the SA26 Merlin, more or less a Cabin pressurization, pressurized Excalibu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atlanta
Atlanta ( ) is the List of capitals in the United States, capital and List of municipalities in Georgia (U.S. state), most populous city in the U.S. state of Georgia (U.S. state), Georgia. It is the county seat, seat of Fulton County, Georgia, Fulton County and extends into neighboring DeKalb County, Georgia, DeKalb County. With a population of 520,070 (2024 estimate) living within the city limits, Atlanta is the eighth most populous city in the Southeastern United States, Southeast and List of United States cities by population, 36th most populous city in the United States according to the 2020 United States census, 2020 U.S. census. Atlanta is classified as a Globalization and World Cities Research Network#Beta +, Beta + global city and is the principal city of the much larger Atlanta metropolitan area, the core of which includes Cobb County, Georgia, Cobb, Clayton County, Georgia, Clayton and Gwinnett County, Georgia, Gwinnett counties, in addition to Fulton and DeKalb. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Douglas DC-3
The Douglas DC-3 is a propeller-driven airliner manufactured by the Douglas Aircraft Company, which had a lasting effect on the airline industry in the 1930s to 1940s and World War II. It was developed as a larger, improved 14-bed sleeper version of the Douglas DC-2. It is a low-wing metal monoplane with conventional landing gear, powered by two radial piston engines of . Although the DC-3s originally built for civil service had the Wright R-1820 Cyclone, later civilian DC-3s used the Pratt & Whitney R-1830 Twin Wasp engine. The DC-3 has a cruising speed of , a capacity of 21 to 32 passengers or 6,000 lbs (2,700 kg) of cargo, and a range of , and can operate from short runways. The DC-3 had many exceptional qualities compared to previous aircraft. It was fast, had a good range, was more reliable, and carried passengers in greater comfort. Before World War II, it pioneered many air travel routes. It was able to cross the continental United States from Ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Civil Aeronautics Board
The Civil Aeronautics Board (CAB) was an agency of the federal government of the United States, formed in 1940 from a split of the Civil Aeronautics Authority and abolished in 1985, that regulated aviation services (including scheduled passenger airline serviceStringer, David H."Non-Skeds: The Story of America's Supplemental Airlines, Part 1: Industry in the United States," '' AAHS Journal'', vol. 64, no.4 (Winter 2019) journal of the American Aviation Historical Society, excerpt online, retrieved April 8, 2020) and, until the establishment of the National Transportation Safety Board in 1967, conducted air accident investigations. The agency was headquartered in Washington, D.C. Powers The authority of the Civil Aeronautics Board to regulate airlines was established by the Civil Aeronautics Act of 1938. The 1938 Act was amended by the Federal Aviation Act of 1958, but the main effect of that was to establish the Federal Aviation Agency (FAA), which among other things regul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
