Petty Officer 3rd Class Ryan Spencer and Seaman Stephen Heckly, Coast Guard crewmembers aboard a 47-foot Motor Lifeboat from Coast Guard Station Humboldt Bay, maintain visual contact with a trail line from an MH-65 Dolphin helicopter during night-time helicopter operations training near Eureka, Calif., March 6, 2018. Coast Guard helicopter crews routinely conduct training with small boat crews to maintain their qualifications and so that in the event of a medevac request from a boat or ship, the crews are proficient in their lifesaving techniques. (Coast Guard photo by Chief Petty Officer Brandyn Hill)