Quartermaster Seaman Jacob Williams uses a telescopic alidade to establish the bearing of known reference points on islands in t

110528-N-DR144-298
SURIGAO STRAIT (May 28, 2011) Quartermaster Seaman Jacob Williams uses a telescopic alidade to establish the bearing of known reference points on islands in the Philippines as the Nimitz-class aircraft carrier USS Carl Vinson (CVN 70) and ships assigned to Carrier Strike Group (CSG) 1 approach the Surigao Strait.  Carl Vinson and Carrier Air Wing (CVW) 17 are underway in the U.S. 7th Fleet area of responsibility. (U.S. Navy photo by Mass Communication Specialist 2nd Class James R. Evans/Released)

110528-N-DR144-298
 SURIGAO STRAIT (May 28, 2011) Quartermaster Seaman Jacob Williams uses a telescopic alidade to establish the bearing of known reference points on islands in the Philippines as the Nimitz-class aircraft carrier USS Carl Vinson (CVN 70) and ships assigned to Carrier Strike Group (CSG) 1 approach the Surigao Strait. Carl Vinson and Carrier Air Wing (CVW) 17 are underway in the U.S. 7th Fleet area of responsibility. (U.S. Navy photo by Mass Communication Specialist 2nd Class James R. Evans/Released)