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 Sciences its focus on becoming a technology and equipment provider to metal, industries gasses and environmental industries. In October 2008 Chinook Sciences announced the formation of Chinook Energy. A division that would exclusively handle their waste to energy technology application. In March 2009 Chinook Sciences and European Metal Recycling (EMR) announced a joint venture named Innovative Environmental Solutions UK LTD. (IES), which they would claim is the “first commercial scale enterprise to generate renewable electricity and recycle metal from automobile shredder residue” (ASR). The proposed venture would process 120,000 metric tons of automobile shredder residue per year using Chinook's patented and