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 Jargon names throughout this region bear Jargon names (see List of Chinook Jargon placenames) and words are preserved in various rural industries such as logging and fishing. The Chinook Jargon was multicultural and functional. To those familiar with it, Chinook Jargon is often considered a wonderful cultural inheritance. For this reason, and because Jargon has not quite died, enthusiasts actively promote the revival of the language in everyday western speech. The Confederated Tribes of the Grand Ronde Community of Oregon is taking steps to preserve Chinook Jargon use through a full immersion head start/preschool which is conducted in Chinuk Wawa, in