171108-N-CO914-0012 PACIFIC OCEAN (Nov. 8, 2017) Aviation Ordnanceman 3rd Class Donald Glenn, right, trains Aviation Structural Mechanic 2nd Class Cassie Wells on how to operate the landing signal officer shack controls aboard the Ticonderoga-class guided-missile cruiser USS Lake Champlain (CG 57). Lake Champlain is participating in a sustainment training exercise in preparation for an upcoming deployment. (U.S. Navy photo by Mass Communication Specialist 1st Class Nathan Carpenter/Released)