Boeing engine started in 1943 and Boeing's gas turbines were designated models 502 (T50), 520 (T60), 540, 551 and 553. Boeing built 2,461 engines before production ceased in April 1968. Many applications of the Boeing gas turbine engines were considered to be firsts, including the first turbine-powered helicopter and boat. Vertol Aircraft Corporation was acquired by Boeing in 1960, and was reorganized as Boeing's Vertol division. The twin-rotor CH-47 Chinook, produced by Vertol, took its first flight in 1961. This heavy-lift helicopter remains a work-horse vehicle to the present day. In 1964, Vertol also began production of the CH-46 Sea Knight.
1994 Scotland RAF Chinook crash 1994 Scotland RAF Chinook crash The 1994 Mull of Kintyre RAF Chinook crash occurred on 2 June 1994 at about 18:00 hours when a Royal Air Force (RAF) Chinook helicopter (serial number "ZD576", callsign "F4J40") crashed on the Mull of Kintyre, Scotland. The crash, which occurred during thick foggy conditions, resulted in the deaths of all twenty-five passengers and four crew on board. Among the passengers were almost all the United Kingdom's senior Northern Ireland intelligence experts. The accident holds the distinction of being the worst peacetime disaster to have been suffered by the RAF. In 1995, an RAF board