Rolls-Royce Dart Rolls-Royce Dart The Rolls-Royce RB.53 Dart is a long-lived British turboprop engine designed, built and manufactured by Rolls-Royce Limited. First run in 1946, it powered the first Vickers Viscount maiden flight in 1948, and in the Viscount was the first turboprop engine to enter airline service, with British European Airways (BEA), in 1950. On 29 July 1948 a flight between Northolt and Paris–Le Bourget Airport with 14 paying passengers in a Dart-powered Viscount was the first scheduled airline flight by any turbine-powered aircraft. The Dart was still in production when the last Fokker F27 Friendships and Hawker Siddeley HS 748s
Vickers-Armstrongs its acquisitions Vinters plc. Vickers-Armstrongs inherited the Vickers machine gun of 1912 used in World War I from Vickers Limited. There were other Vickers machine guns aside from the regular water-cooled model (known universally as the "Vickers"): the Vickers-Berthier (VB) machine gun used by the Indian Army, the Vickers "K" .303 aircraft machine gun developed from it, and the Vickers "S" 40 mm aircraft gun. An unusual machine gun also made was the Vickers Higson. Vickers produced larger weapons such as the Ordnance QF 2-pounder gun used on tanks. In 1948 Vickers bought the Australian business of Charles Ruwolt Ltd