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.
Helicopter Heroes Helicopter Heroes Helicopter Heroes is a British daytime television series, following the lifesaving work of the Yorkshire Air Ambulance. The first episode aired on 3 September 2007 and a total of seven series have been made. In 2012–13 the team produced a 10 part series called "Helicopter Heroes Down Under", featuring the work of British medics working in Australia. A second, 15 part series is now in production for broadcast in the UK in January 2015. First screened on BBC One in 2007, its first presenter was "Top Gear"'s Richard Hammond. He agreed to front the show to thank the