Naval Aircrewman (Helicopter) 2nd Class Shamus McManaman from Helicopter Sea Combat Squadron (HSC) 28 mans a .50-caliber machine gun from an MH-60S Knighthawk during a simulated straits transit with the amphibious assault ship USS Kearsarge (LHD 3). Kearsarge is participating in Composite Training Unit Exercise off the East Coast of the United States in preparation for an upcoming deployment this spring.