Joseph Summers turboprop airliner (the Vickers Viscount) on 16 July 1948 and the initial flight of Britain's first four-jet bomber (Vickers Valiant) on 18 May 1951. By the time he retired, he had achieved 366 general types, second only to the Guinness world record holder Eric "Winkle" Brown who has 487. Summers still holds the world record of 54 "Prototype First Flights". On 15 December 2016, in a Boroondara Council meeting, Joseph Summers had the street formally known as Oliver Street renamed, to honour his work in the military. Summers married Dulcie Jeanette Belcher in 1922 in Sculcoates, Yorkshire. Summers died on
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