The Boeing 727 is a medium-sized narrow-body three-engine jet commercial airliner, built and developed by the American company Boeing Commercial Airplanes from 1963 to 1984. The first Boeing 727 left the factory on November 27, 1962. It has the same width of the Boeing 707/720 fuselage, which reduces Boeing's operating costs and airlines' maintenance costs. It is the best-selling model until the early 1980s, with a total of 1,831 aircraft delivered, when it was replaced by the Boeing 737. At the end of April 2017, four Boeing 727s remained in active service. 100 and 83 Boeing 727-200. Boeing 727 Kalitta Air Wishes From top and from left to right: Boeing 727-200 prototype, Trans World Airlines Boeing 727-31, Kalitta Air Boeing 727, Iran Aseman Airlines Boeing 727-228-Adv, Condor Boeing 727-30, Boeing 727 -22 from Avensa and Boeing 727-2S2F from Líneas Aéreas Suramericanas. VIASA (Venezolana Internacional de Aviación, Sociedad Anónima) was a Venezuelan airliner. Created by the government on November 21, 1960,[1] it became a mixed company where 49% of the shares were in private hands and the remaining 51% belonged to the State. The fleet, one of the most modern in South America at its time, was made up of Convair 880, DC-9 and DC-8 aircraft in the 60's, Boeing 747, DC-10 in the 70's and DC- 10 more Airbus A300s in the 1980s. It was known worldwide for being the American airline with the most planes and the most international destinations and for its excellent customer service. However, at the beginning of the second presidential term of Carlos Andrés Pérez and at the request of the IMF, Viasa was finally privatized by 60% of its entirety.