amphibious landings onto a far larger number of beaches — made LSTs obsolete, but they remained with the fleet for another decade because they were the only means by which the hundreds of thousands of gallons of motor vehicle fuel needed by a Marine Expeditionary Force could be landed. Only the development of tankers with the Offshore Petroleum Discharge System (OPDS) and the later development of special fuel bladders which gave the LCACs a tanker capability allowed for their retirement. Landing Ship, Tank, Hospital (LSTH) Atlantic Tank Landing Ship (ATL) The ATL hull classification was short-lived; it was changed to Landing Ship Tank (LST). USS ATL-1, later USS LST-1 Vehicle Landing Ship (LSV) The World War II LSVs were converted from cruiser minelayers (CM) and netlayers (AN). After the war most were slated to become mine countermeasures ships (MCS), but only two were actually converted. , former CM-6, AP-106, later MCS-1 , former CM-7, AP-107, later MCS-2 , former AN-3, AP-108, later MCS-3 canceled , former AN-4, AP-109, later MCS-4 canceled , former AN-1, AP-160, later MCS-5 canceled , former AN-2, AP-161, later AKN-6 The post-WW2 LSVs were among the first roll-on/roll-off cargo ships. , former T-AK-269, later T-AKR-7 , former LSD-23, T-AK-273 , later T-AKR-9 Patrol Craft, Control (PCC) Thirty-five s were converted into amphibious landing control vessel during World War II and reclassified as Patrol Craft, Control after the war. Extra personnel (eight radiomen, two signalmen, one quartermaster and two communications officers), accommodations and improved radar and communications equipment were added. PCs proved exceptionally adept as Control Vessels, guiding waves of landing craft during numerous amphibious landings in the European and Pacific Theaters. PCC-549, ex-PC-549 PCC-555, ex-PC-555 PCC-563, ex-PC-563 PCC-578, ex-PC-578 USS Lenoir (PCC-582), ex-PC-582 USS Houghton (PCC-588), ex-PC-588 USS Metropolis (PCC-589), ex-PC-589 PCC-598, ex-PC-598 PCC-802, ex-PC-802, later to Republic of Korea as Sam Gak San (PC-703) PCC-803, ex-PC-803 PCC-1136, ex-PC-1136 PCC-1137, ex-PC-1137 USS Escandido (PCC-1169), ex-PC-1169 USS Guymon (PCC-1177), ex-PC-1177 USS Kewaunee (PCC-1178), ex-PC-1178 USS Martinez (PCC-1244), ex-PC-1244 USS Ukiah (PCC-1251), ex-PC-1251 Patrol Craft Sweeper, Control (PCSC) Thirteen Patrol Craft Sweepers (which were built on 134-foot hulls) were converted into amphibious landing control vessel during World War II and reclassified as Patrol Craft Sweeper, Control. , ex-PCS-1379 , ex-PCS-1389 , ex-PCS-1390 , ex-PCS-1391 , ex-PCS-1402 , ex-PCS-1403 , ex-PCS-1418 , ex-PCS-1421 , ex-PCS-1429 , ex-PCS-1452 , ex-PCS-1455 , ex-PCS-1460 , ex-PCS-1461 Expeditionary Fast Transport (EPF) Spearhead-class [A]