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.
Chinook Regional Hospital Chinook Regional Hospital Chinook Regional Hospital is the main hospital for the City of Lethbridge and Southern Alberta, and offers many of the health care services for Alberta Health Services. The hospital services a population of over 150,000 and is supported by the Chinook Regional Hospital Foundation. The first hospital in Lethbridge opened in 1891 by the family of Alexander Galt, a local entrepreneur. The original building now houses the Galt Museum. The Sisters of St. Martha opened the St. Michael's Hospital at 13th Street South and 9th Avenue South in 1929. In 1955, the City of Lethbridge built a