Keywords: US Navy 100925-N-6632S-071 Gunner's Mate 1st Class Walter R. Mangum, assigned to the weapons department of the aircraft carrier USS George H.W. Bus.jpg en ATLANTIC OCEAN Sept 25 2010 Gunner's Mate 1st Class Walter R Mangum assigned to the weapons department of the aircraft carrier USS George H W Bush CVN 77 prepares Sailors to fire a 50-caliber machine gun during a live-fire exercise U S Navy photo by Mass Communication Specialist Seaman Kevin J Steinberg/Released 2010-09-25 100925-N-6632S-071 Navy http //www navy mil/view_image asp id 92150 U S Navy photo by Mass Communication Specialist Seaman Kevin J Steinberg PD-USGov-Military-Navy Aboard USS George H W Bush CVN-77 Gunner's Mate |