The CH-53 Sea Stallion is a heavy-lift helicopter used by the United States Marine Corps. Designed for transporting troops and equipment, it can carry up to 55 passengers or 16,000 pounds of cargo. Its powerful twin-engine design allows for operation in various environments, including harsh weather conditions. Originally introduced in the late 1960s, the CH-53 has undergone several upgrades, leading to the more advanced CH-53K King Stallion. This modern variant features improved avionics, increased payload capacity, and enhanced performance, making it a vital asset for military operations and humanitarian missions alike.