U.S. Navy Cmdr. Darren Guenther uses a public announcement system to communicate with sailors during an ammunition transfer on the USS John C. Stennis in the Pacific Ocean, July 12, 2015. The crew is preparing for a Navy inspection and survey. Guenther is the ship's air boss. U.S. Navy Cmdr. Darren Guenther uses a public announcement system to communicate with sailors during an ammunition transfer on the USS John C. Stennis in the Pacific Ocean, July 12, 2015. The crew is preparing for a Navy inspection and survey. Guenther is the ship's air boss. SHARE: Download: Full Size (1.505431 MB) Tags: photo essays Credit: VIRIN: 600875-I-EFD82-563.jpg Photo Gallery