High Quality Content by WIKIPEDIA articles! USNS Apache (T-ATF-172), fifth United States Navy ship of the name, is the last of the Powhatan class of fleet ocean tugs. Apache was delivered to the U.S. Navy in 1981. She is operated by Military Sealift Command and crewed by 16 civil service mariners (CIVMARS) with a complement of up to 4 Navy enlisted personnel to operate communications equipment. She is designed to provide the Navy with towing service, and when augmented by Navy divers, assist in the recovery of downed aircraft and ships. There are quarters onboard for up to 25 additional personnel.