Telescopic Alidade Navy Ensign John Barmann looks through a telescopic alidade, a sighting device, aboard the USS John C. Stennis navigation bridge during Rim of the Pacific 2016 in the Pacific Ocean, July 21, 2016. Navy photo by Petty Officer 3rd Class Kenneth Rodriguez Santiago SHARE: Download: Full Size (0.41 MB) Tags: Sailors, Navy Credit: Petty Officer 3rd Class Kenneth Rodriguez Santiago VIRIN: 160721-N-GZ947-020A.JPG Photo Gallery