Chief Warrant Officer Sean McSweeney provides instruction during basic engineering casualty control exercises aboard the U.S. Coast Guard Cutter Healy (WAGB 20) while underway in the Beaufort Sea, Aug. 3, 2023. Healy is designed to conduct a wide range of research activities, providing more than 4,200 square feet of scientific laboratory space, numerous electronic sensor systems, oceanographic winches, and accommodations for up to 50 scientists. (Coast Guard photo by Petty Officer 3rd Class Briana Carter)