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 Point Pacific Northwest. A military reservation was established at Chinook Point in 1864, but was not significantly developed. It was not until 1898, when both the Spanish–American War and heightened tension with Britain over the Alaska boundary dispute prompted formal development. Chinook Point is now part of Fort Columbia State Park, which is in turn part of the Lewis and Clark National and State Historical Parks, a series of parks preserving and commemorating sites related to the Lewis and Clark Expedition. Chinook Point Chinook Point is a headland in Pacific County, Washington. Located just northwest of the mouth of the Columbia