Helicopter flight controls blades collectively ("i.e.," all at the same time) and independent of their position. Therefore, if a collective input is made, all the blades change equally, and as a result, the helicopter increases or decreases its total lift derived from the rotor. In level flight this would cause a climb or descent, while with the helicopter pitched forward an increase in total lift would produce an acceleration together with a given amount of ascent. The collective pitch control in a Boeing CH-47 Chinook is called a "thrust control", but serves the same purpose, except that it controls two rotor systems, applying
Chinook, Washington 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 as the county's first salmon cannery in 1870. Chinook was once a wealthy town based on the salmon harvest. There was no road connection to Ilwaco until 1891, when the bridge was completed across the Chinook River. Later, the Ilwaco Railway and Navigation Company built a narrow gauge railroad from Megler to Ilwaco, passing down