History of Cubana de Aviación of its fleet, opting to replace its long-range piston-prop Super Constellations with turboprop aircraft, and to expand its existing Vickers Viscount turboprop fleet in the immediate future. Cubana placed orders for four long-range Bristol Britannia (Model 318) and four Vickers Super Viscount (VV-818) aircraft, all turboprops, for its international services (which included Madrid, New York, Mexico City, Miami, Montego Bay, Nassau, Port-au-Prince), and for some of its domestic routes (Camagüey, Santiago de Cuba, Varadero). The first Bristol Britannia (CU-T668) was delivered in late 1958, and was placed in service in the airline's New York route. The new Britannias and Super
South East England Instruments of Byfleet developed the world's first multi-channel flight data recorders in 1965. Although the Comet is generally accepted as the world's first production-run jet airliner, the first jet airliner ever built (individual) was a Nene-powered Vickers VC.1 Viking on 6 April 1948 from Wisley Airfield; the world's first turboprop airliner would fly from there on 16 July 1948 by Mutt Summers. In 1939 at Cowes (Northwood) John Godeck invented the plan position indicator method of radar display as most commonly known ever since; the site became Plessey Radar in 1965, and currently is run by BAE Systems. Sperry Gyroscope