SAN DIEGO (Oct. 14, 2021) An instructor of the Landing Signalman Enlisted (LSE) course, left, supervises as her student, acting as the hook up person during a vertical replenishment simulation, gives the "thumbs up" signal, indicating they have completed hooking a load up to an MH-60S Knighthawk helicopter, assigned to the "Chargers" of Helicopter Sea Combat Squadron (HSC) 14, and are ready to exit the aircraft's rotor arc as part of a graded evolution for the LSE certification process at Naval Outlying Landing Field in Imperial Beach, California. During the evolution, instructors from the "Merlins" of HSC-3 guided LSE students in implementing proper hand signaling techniques and protocol used to communicate with helicopter pilots and other ground personnel during flight deck evolutions such as basic approach and vertical replenishment. The "Merlins" of HSC-3, stationed on Naval Air Station, North Island in Coronado, California, serve as the course curriculum model manager for the course, and train all Pacific Fleet Helicopter Control Officers and LSEs. (U.S. Navy photo by Mass Communication Specialist 2nd Class Sara Eshleman)