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
Billy Chinook 160 feet into Lake Billy Chinook from the precipice of Crooked River Canyon, is known locally (unofficially) as "Billy Chinook Falls". Billy Chinook Billy Chinook was a chief and member of the Wasco tribe. Chinook was a guide for John C. Frémont and Kit Carson, who explored Central Oregon from 1843 to 1844 and from 1845 to 1847. Chinook also served as First Sergeant, U.S. Army Wasco Scouts during the Snake War. Lake Billy Chinook in Oregon is named in his honor. Billy Chinook (aka William Parker) was born circa 1827 in the area that was to become Fort Dalles,