High Quality Content by WIKIPEDIA articles! USS Proton (AG-147/AKS-28) -- also known as USS LST-1078 – was an LST-542-class tank landing ship launched by the U.S. Navy during the final months of World War II. Proton served as a troop ship, a cargo ship and as an electronic parts supply ship for the U.S. Pacific Fleet and was decommissioned following the Korean War.