Keywords: US Navy 090906-N-3610L-375 The Arleigh Burke-class destroyer USS Gridley (DDG 101) uses a phone and distance (P^D) line to connect with the aircraft carrier USS Ronald Reagan (CVN 76) during a fueling at sea (FAS) evolution.jpg en GULF OF OMAN Sept 6 2009 The Arleigh Burke-class destroyer USS Gridley DDG 101 uses a phone and distance P D line to connect with the aircraft carrier USS Ronald Reagan CVN 76 during a fueling at sea FAS evolution The P D line is a sound-powered phone line used for bridge-to-bridge communications and is also equipped with distance flags to indicate distance being maintained between the ships U S Navy photo by Mass Communication Specialist 3rd Class Torrey W Lee/Released 2009-09-06 090906-N-3610L-375 Navy http //www navy mil/view_image asp id 75907 U S Navy photo by Mass Communication Specialist 3rd Class Torrey W Lee PD-USGov-Military-Navy USS Gridley DDG-101 People of the United States Navy with sound-powered telephones |