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Transocean Air Lines
Transocean Air Lines was established in 1946 as ONAT (Orvis Nelson Air Transport Company) based in Oakland, California. The airline was renamed to Transocean Air Lines the same year. The Transocean name was also used in 1989 by another US-based air carrier, TransOcean Airways, which previously operated as Gulf Air Transport. History At its height, the Transocean organization included ten companies, making it the first aviation conglomerate. The airline employed 1,500 persons. Including the personnel of their subsidiary companies, the total number exceeded 6,700. Transocean's gross annual sales climbed as high as $50 million. By April 1958, after 12 years of business, Transocean's aircraft had flown a total of 1,290,966,900 passenger miles, 126,990,642 cargo ton-miles, and 66,828,237 aircraft miles. Transocean Air Lines became the largest supplemental air carrier in the world, employing over 6,700 workers at 57 bases around the globe at its peak. Beginning :"Word that a new a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
City
A city is a human settlement of notable size.Goodall, B. (1987) ''The Penguin Dictionary of Human Geography''. London: Penguin.Kuper, A. and Kuper, J., eds (1996) ''The Social Science Encyclopedia''. 2nd edition. London: Routledge. It can be defined as a permanent and densely settled place with administratively defined boundaries whose members work primarily on non-agricultural tasks. Cities generally have extensive systems for housing, transportation, sanitation, utilities, land use, production of goods, and communication. Their density facilitates interaction between people, government organisations and businesses, sometimes benefiting different parties in the process, such as improving efficiency of goods and service distribution. Historically, city-dwellers have been a small proportion of humanity overall, but following two centuries of unprecedented and rapid urbanization, more than half of the world population now lives in cities, which has had profound consequences for g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cessna 170
The Cessna 170 is an American light, single-engined, general aviation aircraft produced by the Cessna Aircraft Company between 1948 and 1956. It is the predecessor of the Cessna 172, the most produced aircraft in history, which replaced the 170 in production in 1956. Development 170 In late 1948, Cessna began sales of the 170, with a metal fuselage and tail and fabric-covered constant-chord wings. These earliest 170s were four-seat versions of the popular 140 with a more powerful Continental C145-2 and larger fuel tanks. Like the 140, they were constructed of metal with fabric-covered wings supported by a "V" strut. 170A In 1949 Cessna began marketing the 170A, an all-metal 170 with zero- dihedral wing tapered outboard of the slightly-enlarged plain flaps, and a single strut replacing the "V" strut of the 170. This and subsequent versions of the 170 shared the fin/rudder shape of the larger Cessna 190 and 195 models. 305 In 1950, the United States Air Force, Army ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piper PA-18
The Piper PA-18 Super Cub is a two-seat, single-engine monoplane. Introduced in 1949 by Piper Aircraft, it was developed from the PA-11 Cub Special, and traces its lineage back through the J-3 Cub to the Taylor E-2 Cub of the 1930s. In close to 40 years of production, over 10,000 were built. Super Cubs are commonly found in roles such as bush flying, banner towing and glider towing. Design and development While based on the design of the earlier Cubs, the addition of an electrical system, flaps (3 notches), and a considerably more powerful engine (150 hp), made it a very different flying experience. Although the "standard" Super Cub was fitted with a 150-horsepower (112 kW) Lycoming engine, it is not uncommon to see them equipped with a 160-horsepower O-320-B2B, or even 180 horsepower (134 kW) Lycoming O-360 powerplant. The high-lift wing and powerful engine made the Super Cub a prime candidate for conversion to either floatplane or skiplane. In addition, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Noorduyn Norseman
The Noorduyn Norseman, also known as the C-64 Norseman, is a Canadian single-engine bush plane designed to operate from unimproved surfaces. Distinctive stubby landing gear protrusions from the lower fuselage make it easily recognizable. Introduced in 1935, the Norseman remained in production for almost 25 years with over 900 produced. A number of examples remain in commercial and private use to this day. Norseman aircraft are known to have been registered and/or operated in 68 countries and also have been based and flown in the Arctic and Antarctic regions. Design and development Designed by Robert B.C. Noorduyn, the Noorduyn Norseman was produced from 1935 to 1959, originally by Noorduyn Aircraft Ltd. and later by the Canadian Car and Foundry company. With the experience of working on many ground-breaking designs at Fokker, Bellanca and Pitcairn-Cierva, Noorduyn decided to create his own design in 1934, the Noorduyn Norseman. Along with his colleague, Walter Clayton, Noo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Martin 2-0-2
The Martin 2-0-2 was an airliner introduced in 1947. The twin piston-engined fixed-wing aircraft was designed and built by the Glenn L. Martin Company. Design and development Glenn L. Martin, president of the company, intended that the Model 2-0-2 would be a replacement for the Douglas DC-3. It was also known as the "Martin Executive". The first flight of the model was in November 1946. Full civilian certification was gained in August 1947, several months before competing aircraft types. The total production of 2-0-2s and 2-0-2As was 47 aircraft. The aircraft was not pressurized, but was considered a long-range airliner. The fatal crash in 1948 of Northwest Airlines Flight 421 revealed a serious structural problem in the wings. Structural metal fatigue was the problem in a major wing spar. Alloy 7075-T6 was used, which is susceptible to stress-corrosion cracking and low toughness. The airliner was grounded and modifications were made. The wing components were redesigned an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lockheed Model 18 Lodestar
The Lockheed Model 18 Lodestar is a passenger transport aircraft of the World War II era. Design and development Sales of the 10–14 passenger Lockheed Model 14 Super Electra, which first flew in 1937, had proved disappointing, despite the aircraft's excellent performance, as it was more expensive to operate than the larger Douglas DC-3, already in widespread use. In order to improve the type's economics, Lockheed decided to stretch the aircraft's fuselage by , allowing an extra two rows of seats to be fitted. The prototype for the revised airliner, designated Model 18 by Lockheed, was converted from the fourth Model 14, one of a batch which had been returned to the manufacturer by Northwest Airlines after a series of crashes. The modified aircraft first flew in this form on September 21, 1939, another two prototypes being converted from Model 14s, with the first newly built Model 18 flying on February 2, 1940. A total of 625 Lodestars of all variants were built. Operationa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grumman Widgeon
The Grumman G-44 Widgeon is a small, five-person, twin-engined, amphibious aircraft. It was designated J4F by the United States Navy and Coast Guard and OA-14 by the United States Army Air Corps and United States Army Air Forces. Design and development The Widgeon was originally designed for the civil market. It is smaller, but otherwise similar to Grumman's earlier G-21 Goose, and was produced from 1941 to 1955. The aircraft was used during World War II as a small patrol and utility machine by the US Navy, US Coast Guard, and Royal Navy's Fleet Air Arm. The first prototype flew in 1940, and the first production aircraft went to the US Navy as an antisubmarine aircraft. In total, 276 were built by Grumman, including 176 for the military. During World War II, they served with the US Navy, Coast Guard, Civil Air Patrol, and Army Air Force, as well as with the British Royal Navy, which gave it the service name Gosling. Operational history United States Coast Guard On August 1, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Douglas DC-6
The Douglas DC-6 is a piston-powered airliner and cargo aircraft built by the Douglas Aircraft Company from 1946 to 1958. Originally intended as a military transport near the end of World War II, it was reworked after the war to compete with the Lockheed Constellation in the long-range commercial transport market. More than 700 were built and many still fly in cargo, military, and wildfire control roles. The DC-6 was known as the C-118 Liftmaster in United States Air Force service and as the R6D in United States Navy service prior to 1962, after which all U.S. Navy variants were also designated as the C-118. Design and development The United States Army Air Forces commissioned the DC-6 project as the XC-112 in 1944. The Army Air Forces wanted a lengthened, pressurized version of the DC-4-based C-54 Skymaster transport with more powerful engines. By the time the prototype XC-112A flew on 15 February 1946, the war was over, the USAAF had rescinded its requirement, and the aircra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Douglas DC-4
The Douglas DC-4 is an American four-engined (piston), propeller-driven airliner developed by the Douglas Aircraft Company. Military versions of the plane, the C-54 and R5D, served during World War II, in the Berlin Airlift and into the 1960s. From 1945, many civil airlines operated the DC-4 worldwide. Design and development Following proving flights by United Airlines of the DC-4E, it became obvious that the 52-seat airliner was too inefficient and unreliable to operate economically and the partner airlines, American Airlines, Eastern, Pan American, Trans World and United, recommended a lengthy list of changes to the design. Douglas took the new requirements and produced an entirely new, much smaller design, the DC-4A, with a simpler, still unpressurized fuselage, Pratt & Whitney R-2000 Twin Wasp engines, and a single fin and rudder. A tricycle landing gear was retained. With the entry of the United States into World War II, in December 1941, the United States Army Air Forc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Douglas DC-3
The Douglas DC-3 is a propeller-driven airliner manufactured by 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 most DC-3s flying today use Pratt & Whitney R-1830 Twin Wasp engines, many DC-3s built for civil service originally had the Wright R-1820 Cyclone.) 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 the war, it pioneered many air travel routes. It was able to cross the continental United States from New York to Los An ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
C-46 Commando
The Curtiss C-46 Commando is a twin-engine transport aircraft derived from the Curtiss CW-20 pressurised high-altitude airliner design. Early press reports used the name "Condor III" but the Commando name was in use by early 1942 in company publicity. It was used as a military transport during World War II by the United States Army Air Forces and also the U.S. Navy/Marine Corps, which called it R5C. The C-46 served in a similar role to its Douglas-built counterpart, the C-47 Skytrain, but it was not as extensively produced as the latter. After World War II, a few surplus C-46 aircraft were briefly used in their original role as passenger airliners but the glut of surplus C-47s dominated the marketplace and the C-46 was soon relegated to cargo duty. The type continued in U.S. Air Force service in a secondary role until 1968. The C-46 continues in operation as a rugged cargo transport for arctic and remote locations with its service life extended into the 21st century. Design and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Convair CV-240
The Convair CV-240 is an American airliner that Convair manufactured from 1947 to 1954, initially as a possible replacement for the ubiquitous Douglas DC-3. Featuring a more modern design with cabin pressurization, the 240 series made some inroads as a commercial airliner, and had a long development cycle that produced various civil and military variants. Though reduced in numbers by attrition, various forms of the "Convairliners" continue to fly in the 21st century. Design and development The design began with a requirement by American Airlines for an airliner to replace its Douglas DC-3s. Convair's original design, the unpressurised Model 110, was a twin-engine, low-wing monoplane of all-metal construction, with 30 seats. It was powered by Pratt & Whitney R-2800 Double Wasp radial engines. It had a tricycle landing gear, and a ventral airstair for passenger boarding. The prototype Model 110, registration NX90653, first flew on July 8, 1946. By this time, American Airlines had c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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