Platt-LePage Aircraft
The Platt-LePage Aircraft Company was a manufacturer of aircraft for the armed forces of the United States of America. Based in Eddystone, Pennsylvania, the company produced the first helicopter to be officially acquired by the United States Army Air Forces. Establishment Wynn Laurence LePage, a British Aeronautical Engineer living in Pennsylvania, who co-founded the Platt-LePage Aircraft Company in partnership with Haviland Hull Platt, the company's intended purpose being the manufacture of helicopters. LePage, impressed by the performance of the German Focke-Wulf Fa 61,Francillon 1990, p.48. acquired the manufacturing rights to the aircraft.Raines 2002, p.42. Two early helicopter prototypes developed by the company failed to meet with any success;Charnov 2003, pp.171. however in 1940, under the terms of the Dorsey-Logan Act,Leishman 2006, p715. Platt-Lepage was declared the winner of a competition to supply the Army with its first helicopter. First Army helicopter Having em ...
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Wynn Laurence LePage
The Platt-LePage Aircraft Company was a manufacturer of aircraft for the armed forces of the United States of America. Based in Eddystone, Pennsylvania, the company produced the first helicopter to be officially acquired by the United States Army Air Forces. Establishment Wynn Laurence LePage, a British Aeronautical Engineer living in Pennsylvania, who co-founded the Platt-LePage Aircraft Company in partnership with Haviland Hull Platt, the company's intended purpose being the manufacture of helicopters. LePage, impressed by the performance of the German Focke-Wulf Fa 61,Francillon 1990, p.48. acquired the manufacturing rights to the aircraft.Raines 2002, p.42. Two early helicopter prototypes developed by the company failed to meet with any success;Charnov 2003, pp.171. however in 1940, under the terms of the Dorsey-Logan Act,Leishman 2006, p715. Platt-Lepage was declared the winner of a competition to supply the Army with its first helicopter. First Army helicopter Having e ...
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Sikorsky Aircraft
Sikorsky Aircraft is an American aircraft manufacturer based in Stratford, Connecticut. It was established by aviation pioneer Igor Sikorsky in 1923 and was among the first companies to manufacture helicopters for civilian and military use. Previously owned by United Technologies Corporation, in November 2015 Sikorsky was sold to Lockheed Martin. History On 5 March 1923, the Sikorsky Aero Engineering Corporation was founded near Roosevelt Field, New York, by Igor Sikorsky, an immigrant to the United States who was born in Kyiv. In 1925, the company name was changed to Sikorsky Manufacturing Company. After the success of the Sikorsky S-38">S-38, the company was reorganized as the Sikorsky Aviation Corporation with capital of $5,000,000, allowing the purchase of land and the building of a modern aircraft factory in Stratford. In 1929, the company moved to Stratford, Connecticut, and it became a part of United Aircraft and Transport Corporation (later United Technologies Corporatio ...
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Defunct Manufacturing Companies Based In Pennsylvania
Defunct (no longer in use or active) may refer to: * ''Defunct'' (video game), 2014 * Zombie process or defunct process, in Unix-like operating systems See also * * :Former entities * End-of-life product * Obsolescence Obsolescence is the state of being which occurs when an object, service, or practice is no longer maintained or required even though it may still be in good working order. It usually happens when something that is more efficient or less risky r ...

Vehicle Manufacturing Companies Disestablished In 1947
A vehicle (from la, vehiculum) is a machine that transports people or cargo. Vehicles include wagons, bicycles, motor vehicles (motorcycles, cars, trucks, buses, mobility scooters for disabled people), railed vehicles (trains, trams), watercraft (ships, boats, underwater vehicles), amphibious vehicles (screw-propelled vehicles, hovercraft), aircraft (airplanes, helicopters, aerostats) and spacecraft.Halsey, William D. (Editorial Director): ''MacMillan Contemporary Dictionary'', page 1106. MacMillan Publishing, 1979. Land vehicles are classified broadly by what is used to apply steering and drive forces against the ground: wheeled, tracked, railed or skied. ISO 3833-1977 is the standard, also internationally used in legislation, for road vehicles types, terms and definitions. History * The oldest boats found by archaeological excavation are logboats, with the oldest logboat found, the Pesse canoe found in a bog in the Netherlands, being carbon dated to 8040 - 7 ...
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Vehicle Manufacturing Companies Established In 1938
A vehicle (from la, vehiculum) is a machine that transports people or cargo. Vehicles include wagons, bicycles, motor vehicles (motorcycles, cars, trucks, buses, mobility scooters for disabled people), railed vehicles (trains, trams), watercraft (ships, boats, underwater vehicles), amphibious vehicles (screw-propelled vehicles, hovercraft), aircraft (airplanes, helicopters, aerostats) and spacecraft.Halsey, William D. (Editorial Director): ''MacMillan Contemporary Dictionary'', page 1106. MacMillan Publishing, 1979. Land vehicles are classified broadly by what is used to apply steering and drive forces against the ground: wheeled, tracked, railed or skied. ISO 3833-1977 is the standard, also internationally used in legislation, for road vehicles types, terms and definitions. History * The oldest boats found by archaeological excavation are logboats, with the oldest logboat found, the Pesse canoe found in a bog in the Netherlands, being carbon dated to 8040 ...
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Defunct Helicopter Manufacturers Of The United States
Defunct (no longer in use or active) may refer to: * ''Defunct'' (video game), 2014 * Zombie process or defunct process, in Unix-like operating systems See also * * :Former entities * End-of-life product * Obsolescence Obsolescence is the state of being which occurs when an object, service, or practice is no longer maintained or required even though it may still be in good working order. It usually happens when something that is more efficient or less risky r ...

Defunct Aircraft Manufacturers Of The United States
Defunct (no longer in use or active) may refer to: * ''Defunct'' (video game), 2014 * Zombie process or defunct process, in Unix-like operating systems See also * * :Former entities * End-of-life product * Obsolescence Obsolescence is the state of being which occurs when an object, service, or practice is no longer maintained or required even though it may still be in good working order. It usually happens when something that is more efficient or less risky r ...

XHJD Whirlaway
The McDonnell XHJH Whirlaway, aka McDonnell Model 65, was a 1940s American experimental transverse-rotor helicopter designed and built by McDonnell Aircraft Corporation for the United States Navy and was the largest helicopter at the time, as well as the first successful twin-engined twin-rotor helicopter in the world. Design and development In 1944, the United States Navy issued a requirement for a large rescue helicopter with capacity for ten occupants. The design was originally designated XHJD-1; shortly after flying it was re-designated the XHJH-1. It was derived from the single-engined, twin rotor Platt-LePage XR-1 The Platt-LePage XR-1, also known by the company designation PL-3,Francillon 1990, p.49. was an early American transverse rotors helicopter, built by the Platt-LePage Aircraft Company of Eddystone, Pennsylvania. The winner of a United States Ar .... James McDonnell had invested in that company in 1942 and some of his engineers had been working there, gaining ...
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McDonnell Aircraft
The McDonnell Aircraft Corporation was an American aerospace manufacturer based in St. Louis, Missouri. The company was founded on July 6, 1939, by James Smith McDonnell, and was best known for its military fighters, including the F-4 Phantom II, and crewed spacecraft including the Mercury capsule and Gemini capsule. McDonnell Aircraft later merged with the Douglas Aircraft Company to form McDonnell Douglas in 1967. History James McDonnell founded J.S. McDonnell & Associates in Milwaukee, Wisconsin, in 1928 to produce a small aircraft for family use.J.S. McDonnell & Associates, Early years: 1927-1938 (part 1)
, Boeing.com. The economic depression from 1929 ruined his plans and the company collapsed. He went to work for
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Tiltrotor
A tiltrotor is an aircraft which generates lift and propulsion by way of one or more powered rotors (sometimes called ''proprotors'') mounted on rotating shafts or nacelles usually at the ends of a fixed wing. Almost all tiltrotors use a transverse rotor design, with a few exceptions that use other multirotor layouts. Tiltrotor design combines the VTOL capability of a helicopter with the speed and range of a conventional fixed-wing aircraft. For vertical flight, the rotors are angled so the plane of rotation is horizontal, generating lift the way a normal helicopter rotor does. As the aircraft gains speed, the rotors are progressively tilted forward, with the plane of rotation eventually becoming vertical. In this mode the rotors provide thrust as a propeller, and the airfoil of the fixed wings takes over providing the lift via the forward motion of the entire aircraft. Since the rotors can be configured to be more efficient for propulsion (e.g. with root-tip twist) and it ...
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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, ...
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Helicopter Air Transport
Helicopter Air Transport Incorporated (HAT) was formed in New Jersey, United States, to exploit the helicopters which were developed during World War II. It was the world's first commercial helicopter operator. Origins The company was formed in 1945 by Jonathan (John) Wilford and Norman Wallace George Edgar. Edgar was a British businessman who had been an army captain in World War I. After the war in south-west England he founded the airline that became Western Airways Ltd, which shortly before World War II was the world's busiest airline. During the war, he worked for the Air Transport Auxiliary (ATA), going to the US to recruit women pilots for the organisation. After the war, Edgar stayed in the US with a plan to form the world's first commercial operator of helicopters as soon as they became available. John Wilford became president of HAT and Norman Edgar was executive vice president. Their base was Camden Central Airport, New Jersey, now closed. Formerly it had been calle ...
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