HSC 85 (U.S. Navy) The HSC 85 is a high-speed catamaran craft operated by the United States Navy. It was designed for the purpose of transporting troops and cargo at high speeds, making it particularly useful in littoral regions. The HSC 85 features a displacement hull form, twin waterjets for propulsion, and a flight deck capable of handling one helicopter. These vessels offer enhanced capabilities in terms of speed, maneuverability, and versatility compared to traditional naval crafts of similar size. They have been deployed in various operations, contributing to the Navy's mission of providing naval presence, deterrence, and sea control.