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, Washington income for a family was $40,000. Males had a median income of $40,568 versus $20,625 for females. The per capita income for the CDP was $17,198. About 13.2% of families and 18.2% of the population were below the poverty line, including 40.8% of those under age 18 and none of those age 65 or over. Chinook, Washington Chinook is a census-designated place (CDP) in Pacific County, Washington, United States. The population was 457 at the 2000 census and increased to 466 at the 2010 census. Chinook was the site of the first court in Pacific County in 1853, as well