Gastops to support USCG icebreaker with Propulsion System, digital twin design June 22, 2021 Maryam Farag Photo: Gastops. Gastops has been selected by the U.S. Naval Sea Systems Command to provide a Propulsion System Dynamic Response Analysis (PSDRA) for the U.S. Coast Guard Cutter (USCG) Polar Star. This contract has been made possible through a partnership with the Canadian Commercial Corporation (CCC). The Polar Star is the Coast Guard’s only heavy icebreaker. The ship travels to Antarctica to lead Operation Deep Freeze every year, routinely breaking miles of ice over 20 feet thick. It is powered by diesel electric and three aviation-grade gas turbines, which provide up to 75,000 horsepower.