Boeing CH-47 Chinook fires, and supporting petroleum extraction operations. In December 2006, Columbia Helicopters Inc purchased the type certificate of the Model 234 from Boeing. The Chinook has also been licensed to be built by companies outside the United States, such as Elicotteri Meridionali (now AgustaWestland) in Italy and Kawasaki in Japan. The Army finally settled on the larger Chinook as its standard medium-transport helicopter, and as of February 1966, 161 aircraft had been delivered to the Army. The 1st Cavalry Division had brought its organic Chinook battalion when it arrived in 1965 and a separate aviation medium helicopter company, the 147th, had
Mil Moscow Helicopter Plant Series production facilities for Mil-designed helicopters include Rostvertol in Rostov-na-Donu, the Kazan Helicopter Production Association, and the Ulan-Ude Aviation Plant. Mil participates in the Euromil joint venture with Eurocopter. Mil was established in 1947 under the guidance of Mikhail Mil as the helicopter laboratory of the Central Aerohydrodynamic Institute in Zhukovsky, Moscow Oblast. The Mil Mi-1 became the first mass-produced Soviet helicopter. The Mi-8 helicopter, designed in the early 1960s, was a successful design in both military and civil applications, with over 12,000 units being produced. Mil merged with Kamov and Rostvertol to form Russian Helicopters in 2006. The Mil