The CH-47 Chinook is a twin-engine, tandem rotor heavy-lift helicopter used by the military. It is designed to transport troops, supplies, and equipment in various environments, making it versatile for both combat and humanitarian missions. The Chinook can carry up to 55 troops or 24,000 pounds of cargo, and its unique rotor system allows for stability and maneuverability. Originally developed by Boeing in the 1960s, the CH-47 has seen numerous upgrades and variants over the years. It is widely used by the U.S. Army and several other countries, proving its reliability and effectiveness in various operations, including disaster relief and troop transport.