Boeing CH-47 Chinook the CH-47 have been developed since the helicopter entered service. The U.S. Army's first major design leap was the now-common CH-47D, which entered service in 1982. Improvements from the CH-47C included upgraded engines, composite rotor blades, a redesigned cockpit to reduce pilot workload, improved and redundant electrical systems, an advanced flight control system, and improved avionics. The latest mainstream generation is the CH-47F, which features several major upgrades to reduce maintenance, digitized flight controls, and is powered by two 4,733-horsepower Honeywell engines. A commercial model of the Chinook, the Boeing-Vertol Model 234, is used worldwide for logging, construction, fighting forest
Chinook, Montana Chinook, Montana Chinook is a city in and the county seat of Blaine County, Montana, United States. The population was 1,203 at the 2010 census. Points of interest are the Bear Paw Battlefield Museum located in the small town's center and the Bear Paw Battlefield, located just twenty miles south of Chinook. Chinook is located at (48.5894, -109.2321). According to the United States Census Bureau, the city has a total area of , all of it land. As of the census of 2010, there were 1,203 people, 599 households, and 313 families residing in the city. The population density was