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 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