The Douglas DC-6 is a piston-powered airliner and transport 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 today 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 Liftmaster in United States Navy service prior to 18 September 1962, after which all U.S. Navy variants were also designated as the C-118 under the 1962 United States Tri-Service aircraft designation system.
Like every other major type in long service and operation, accidents and incidents have been recorded that have substantially reduced the numbers flying. The following list is typical of such a record of operational use.
The Douglas DC-7 is an American transport aircraft built by the Douglas Aircraft Company from 1953 to 1958. A derivative of the DC-6, it was the last major piston engine-powered transport made by Douglas, being developed shortly after the earliest jet airliner—the de Havilland Comet—entered service and only a few years before the jet-powered Douglas DC-8 first flew in 1958. Larger numbers of both DC-7B and DC-7C variants were also built.
Active from 1951 to 1975, Air Viet Nam was South Vietnam's first commercial air carrier, headquartered in District 1, Saigon. Established under a decree by Chief of State Bảo Đại, the airline flew over two million passengers, throughout the Vietnam War, and until its collapse due to the Fall of Saigon.
CAAC (中国民航), formerly the People's Aviation Company of China (中国人民航空公司), was the airline division of the Civil Aviation Administration of China and the monopoly civil airline in the People's Republic of China. It was founded on 17 July 1952, and merged into CAAC on 9 June 1953. In 1988, the monopoly was broken up and CAAC was split into six regional airlines, which later consolidated into China's Big Three airlines: Beijing-based Air China, Guangzhou-based China Southern Airlines, and Shanghai-based China Eastern Airlines.