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The Douglas C-47 Skytrain or Dakota (RAF designation) is a military transport aircraft that was developed from the Douglas DC-3 airliner. It was used extensively by the Allies during World War II and remained in front line service with various military operators through the 1950s.
The C-47 differed from the civilian DC-3 in numerous modifications that included being fitted with a cargo door and a strengthened floor.[2]
During World War II, the armed forces of many countries used the C-47 and modified DC-3s for the transport of troops, cargo, and wounded. The U.S. Naval designation was R4D. More than 10,000 aircraft were produced in Long Beach and Santa Monica, California and Oklahoma City, Oklahoma. The Oklahoma City plant produced 5,354 C-47s from March 1943 until August 1945.
The C-47 was vital to the success of many Allied campaigns, in particular those at Guadalcanal and in the jungles of New Guinea and Burma where the C-47 (and its naval version, the R4D) made it possible for Allied troops to counter the mobility of the light-traveling Japanese army. Additionally, C-47s were used to airlift supplies to the embattled American forces during the Battle of Bastogne. Possibly its most influential role in military aviation, however, was flying "The Hump" from India into China. The expertise gained flying "The Hump" was later be used in the Berlin Airlift, in which the C-47 played a major role, until the aircraft were replaced by Douglas C-54 Skymasters.
In Europe, the C-47 and a specialized paratroop variant, the C-53 Skytrooper, were used in vast numbers in the later stages of the war, particularly to tow gliders and drop paratroops. In the Pacific, with careful use of the island landing strips of the Pacific Ocean, C-47s were even used for ferrying soldiers serving in the Pacific theater back to the United States.
C-47s (approx. 2,000 received under lend-lease) in British and Commonwealth service took the name Dakota, from the acronym "DACoTA" for Douglas Aircraft Company Transport Aircraft.[3] The C-47 also earned the informal nickname Gooney Bird in the European theater of operations.[4]
Other sources (C-47/R4D Skytrain Units of the Pacific and CBI, David Isby, Osprey Combat Aircraft #66, Osprey Publishing Limited, 2007) attribute this name to the first plane, a USMC R2D - the military version of the DC-2 - being the first plane to land on Midway Island, previously home to the native long-winged albatross known as the Gooney Bird which was native to Midway.
The United States Air Force's Strategic Air Command had Skytrains in service from 1946 through 1967.
With all of the aircraft and pilots having been part of the Indian Air Force prior to Independence, both the Indian Air Force and Pakistan Air Force used C-47s to transport supplies to their soldiers fighting in the Indo-Pakistan War of 1947.
Several C-47 variations were used in the Vietnam War by the United States Air Force, including three advanced electronic warfare variations, which sometimes were called "Electric Gooneys" designated EC-47N, EC-47P, or EC-47Qs depending on the engine used.[5] EC-47s were also operated by the Vietnamese, Laotian and Cambodian Air Forces.[6] A gunship variation, using three 7.62mm miniguns, designated AC-47 "Spooky" often nicknamed "Puff the Magic Dragon" also was deployed.[4]
The Royal Canadian Air Force and later, the Canadian Armed Forces employed the C-47 for transportation, navigation, and radar training, as well as for search and rescue operations from the 1940s to the 1980s.[7]
After World War II thousands of surplus C-47s were converted to civil airline use, some remaining in operation in 2012 as well as being used as private aircraft.
There were large numbers of DC-3s and surplus C-47s in commercial use in the United States in the 1940s. In response to proposed changes to the airworthiness requirements that would limit the continuing use of the large numbers of DC-3s and surplus C-47s in commercial use in the United States, Douglas offered a late 1940s DC-3 conversion. This was modified to improve takeoff and single-engined performance, to meet the new Civil Air Regulations. The new model, the DC-3S or "Super DC-3", was 39 in (0.99 m) longer. It allowed thirty passengers to be carried, with increased speed to compete with newer airliners. The rearward shift in the center of gravity led to larger tail surfaces and new outer, swept back wings. More powerful engines were installed along with shorter, jet ejection-type exhaust stacks. These were either 1,475hp (1,100kW) Wright R-1820 Cyclones or 2,000hp (1,490kW) Pratt & Whitney R-2000s in larger engine nacelles. Minor changes included wheel well doors, a partially retractable tail wheel, flush rivets and low drag antenna. These all contributed to an increased top speed of 250 mph. With greater than 75% of the original DC-3/C-47 configuration changed, the modified design was virtually a new aircraft.[8] The first DC-3S made its maiden flight on 23 June 1949.[9]
The changes fully met the new FAR 4B airworthiness requirements, with significantly improved performance. However, there was little interest from commercial operators in the DC-3S. It was too expensive for the smaller operators who were its main target: only three were sold to Capital Airlines. The U.S. Navy had 100 of its R4D aircraft modified to Super DC-3 standard as the R4D-8, later redesignated C-117D.[10]
Data from McDonnell Douglas Aircraft since 1920 [15]
Performance
Netherlands, Delta Air Lines, Amsterdam, Klm, KLM Cityhopper
France, Togo, British Armed Forces, United States, Germany
Israel, Jerusalem, Jordan, Arab League, Czechoslovakia
Fokker D.VII, Netherlands, Amsterdam, Fokker D.VIII, Fokker Spin
Berlin, Science museum, Germany, Cold War, Museum