The Chinook has been in U.S. Army service since 1962. The CH-47F/MH-47G modernization program is now in full-rate production, and will ensure this tandem rotor medium-lift helicopter remains in the Army fleet at least through the 2030s. It is conceivable that Chinooks will be Army Aviation assets for a century or more. In addition, Chinooks have served the armed forces of more than 15 international customers and performed in commercial service around the world.