Utility Boats
(YFU)
Almost all these vessels were LCUs converted for use as in-district runabouts.
| Builder | Location | LOA | Tons | Built | Notes | ||
| Utility Boats (YFU) | |||||||
| YFU-1 | Bison Shipbuilding | Buffalo NY | 115 | 180 | 1943 | ex-LCU-524, YFB-86, to Paraguay 1977 | |
| YFU-2 | Bison Shipbuilding | Buffalo NY | 115 | 180 | 1943 | ex-LCU-529 | |
| YFU-3 | Bison Shipbuilding | Buffalo NY | 115 | 180 | 1943 | ex-LCU-550 | |
| YFU-4 | Bison Shipbuilding | Buffalo NY | 115 | 180 | 1943 | ex-LCU-562, scrapped 1976 | |
| YFU-5 | Pidgeon Thomas IW | Memphis TN | 115 | 180 | 1943 | ex-LCU-592 | |
| YFU-6 | Pidgeon Thomas IW | Memphis TN | 115 | 180 | 1943 | ex-LCU-600 | |
| YFU-7 | Bison Shipbuilding | Buffalo NY | 115 | 180 | 1944 | ex-LCU-629 | |
| YFU-8 | Bison Shipbuilding | Buffalo NY | 115 | 180 | 1944 | ex-LCU-644, sunk as target 1972 | |
| YFU-9 | Bison Shipbuilding | Buffalo NY | 115 | 180 | 1944 | ex-LCU-666 | |
| YFU-10 | Bison Shipbuilding | Buffalo NY | 115 | 180 | 1944 | ex-LCU-668 | |
| YFU-11 | Pidgeon Thomas IW | Memphis TN | 115 | 180 | 1944 | ex-LCU-677 | |
| YFU-12 | Pidgeon Thomas IW | Memphis TN | 115 | 180 | 1944 | ex-LCU-686 | |
| YFU-13 | Quincy Bargebuilders | Quincy IL | 115 | 180 | 1944 | ex-LCU-742 | |
| YFU-14 | Mo Valley Bridge | Leavenworth KS | 115 | 180 | 1943 | ex-LCU-764 | |
| YFU-15 | |||||||
| YFU-16 | Mo Valley Bridge | Leavenworth KS | 115 | 180 | 1944 | ex-LCU-788 | |
| YFU-17 | Kansas City Steel | Kansas City KS | 115 | 180 | 1944 | ex-LCU-840 | |
| YFU-18 | Darby Products | Kansas City KS | 115 | 180 | 1944 | ex-LCU-869, scrapped 1973 | |
| YFU-19 | Darby Products | Kansas City KS | 115 | 180 | 1944 | ex-LCU-877 | |
| YFU-20 | Mare Island NSY | Vallejo CA | 115 | 180 | 1944 | ex-LCU-960, struck 1970 | |
| YFU-21 | |||||||
| YFU-22 | Mare Island NSY | Vallejo CA | 115 | 180 | 1944 | ex-LCU-974 | |
| YFU-23 | Mare Island NSY | Vallejo CA | 115 | 180 | 1944 | ex-LCU-979 | |
| YFU-24 | Mare Island NSY | Vallejo CA | 115 | 180 | 1944 | ex-LCU-980 | |
| YFU-25 | Bison Shipbuilding | Buffalo NY | 115 | 180 | 1944 | ex-LCU-1056 | |
| YFU-26 | Mare Island NSY | Vallejo CA | 115 | 180 | 1944 | ex-LCU-1082 | |
| YFU-27 | Quincy Bargebuilders | Quincy IL | 115 | 180 | 1944 | ex-LCU-1086 | |
| YFU-28 | Bison Shipbuilding | Buffalo NY | 115 | 180 | 1944 | ex-LCU-1182 | |
| YFU-29 | Bison Shipbuilding | Buffalo NY | 115 | 180 | 1944 | ex-LCU-1136 | |
| YFU-30 | Bison Shipbuilding | Buffalo NY | 115 | 180 | 1944 | ex-LCU-1156 | |
| YFU-31 | Bison Shipbuilding | Buffalo NY | 115 | 180 | 1944 | ex-LCU-1159 | |
| YFU-32 | Bison Shipbuilding | Buffalo NY | 115 | 180 | 1944 | ex-LCU-1162 | |
| YFU-33 | Bison Shipbuilding | Buffalo NY | 115 | 180 | 1944 | ex-LCU-1195 | |
| YFU-34 | Bison Shipbuilding | Buffalo NY | 115 | 180 | 1944 | ex-LCU-1224 | |
| YFU-35 | Pidgeon Thomas IW | Memphis TN | 115 | 180 | 1944 | ex-LCU-1236 | |
| YFU-36 | Quincy Bargebuilders | Quincy IL | 115 | 180 | 1944 | ex-LCU-1250 | |
| YFU-37 | Mo Valley Bridge | Leavenworth KS | 115 | 180 | 1944 | ex-LCU-1283 | |
| YFU-38 | Mo Valley Bridge | Leavenworth KS | 115 | 180 | 1944 | ex-LCU-1286 | |
| YFU-39 | Mare Island NSY | Vallejo CA | 115 | 180 | 1944 | ex-LCU-1363, scrapped 1974 | |
| YFU-40 | Mare Island NSY | Vallejo CA | 115 | 180 | 1944 | ex-LCU-1376 | |
| YFU-41 | Mare Island NSY | Vallejo CA | 115 | 180 | 1944 | ex-LCU-1378 | |
| YFU-42 | Mare Island NSY | Vallejo CA | 115 | 180 | 1944 | ex-LCU-1384 | |
| YFU-43 | Mare Island NSY | Vallejo CA | 115 | 180 | 1944 | ex-LCU-1386 | |
| YFU-44 | Mount Vernon Bridge | Mount Vernon OH | 115 | 180 | 1944 | ex-LCU-1398, scrapped 1978 | |
| YFU-45 | Pidgeon Thomas IW | Memphis TN | 115 | 180 | 1944 | ex-LCU-1411 | |
| YFU-46 | Bison Shipbuilding | Buffalo NY | 115 | 180 | 1944 | ex-LCU-1430 | |
| YFU-47 | |||||||
| YFU-48 | |||||||
| YFU-49 | |||||||
| YFU-50 | Island Dockyard | Kingston NY | 115 | 180 | 1954 | ex-LCU-1486, reclassified as a boat 1985 | |
| YFU-51 | |||||||
| YFU-52 | Quincy Bargebuilders | Quincy IL | 115 | 180 | 1944 | ex-LCU-743, scrapped 1972 | |
| YFU-53 | Bison Shipbuilding | Buffalo NY | 115 | 180 | 1944 | ex-LCU-1446, scrapped 1977 | |
| YFU-54 | Bison Shipbuilding | Buffalo NY | 115 | 180 | 1944 | ex-LCU-509 | |
| YFU-55 | Bison Shipbuilding | Buffalo NY | 115 | 180 | 1944 | ex-LCU-637, scrapped 1978 | |
| YFU-56 | Bison Shipbuilding | Buffalo NY | 115 | 180 | 1944 | ex-LCU-646, to the Khmer Republic 1972 | |
| YFU-57 | Quincy Bargebuilders | Quincy IL | 115 | 180 | 1944 | ex-LCU-709, to GSA 1976 | |
| YFU-58 | Quincy Bargebuilders | Quincy IL | 115 | 180 | 1944 | ex-LCU-716, scrapped 1973 | |
| YFU-59 | Mount Vernon Bridge | Mount Vernon OH | 115 | 180 | 1943 | ex-LCU-776, scrapped 1973 | |
| YFU-60 | Darby Products | Kansas City KS | 115 | 180 | 1943 | ex-LCU-851, scrapped 1973 | |
| YFU-61 | Mare Island NSY | Vallejo CA | 115 | 180 | 1943 | ex-LCU-916, struck 1989 | |
| YFU-62 | Mare Island NSY | Vallejo CA | 115 | 180 | 1944 | ex-LCU-973 | |
| YFU-63 | Mare Island NSY | Vallejo CA | 115 | 180 | 1944 | ex-LCU-989 | |
| YFU-64 | Pidgeon Thomas IW | Memphis TN | 115 | 180 | 1944 | ex-LCU-1126 | |
| YFU-65 | Bison Shipbuilding | Buffalo NY | 115 | 180 | 1944 | ex-LCU-1155 | |
| YFU-66 | Bison Shipbuilding | Buffalo NY | 115 | 180 | 1944 | ex-LCU-1203 | |
| YFU-67 | Bison Shipbuilding | Buffalo NY | 115 | 180 | 1944 | ex-LCU-1232, struck 1976 | |
| YFU-68 | Mare Island NSY | Vallejo CA | 115 | 180 | 1944 | ex-LCU-1385, to the Khmer Republic 1972 | |
| YFU-69 | Mare Island NSY | Vallejo CA | 115 | 180 | 1944 | ex-LCU-1388 | |
| YFU-70 | Island Dockyard | Kingston NY | 115 | 180 | 1952 | ex-LCU-1492 | |
| YFU-71 | Pacific Coast Eng. | Alameda CA | 115 | 180 | 1967 | scrapped 1985 | |
| YFU-72 | Pacific Coast Eng. | Alameda CA | 115 | 180 | 1967 | scrapped 1985 | |
| YFU-73 | Pacific Coast Eng. | Alameda CA | 115 | 180 | 1967 | to the Khmer Republic 1972 | |
| YFU-74 | Pacific Coast Eng. | Alameda CA | 115 | 180 | 1967 | sold 1986 | |
| YFU-75 | Pacific Coast Eng. | Alameda CA | 115 | 180 | 1968 | sold 1986 | |
| YFU-76 | Pacific Coast Eng. | Alameda CA | 115 | 180 | 1968 | sold 1984 | |
| YFU-77 | Pacific Coast Eng. | Alameda CA | 115 | 180 | 1968 | to DOI 1985 | |
| YFU-78 | Pacific Coast Eng. | Alameda CA | 115 | 180 | 1968 | scrapped | |
| YFU-79 | Pacific Coast Eng. | Alameda CA | 115 | 180 | 1968 | later IX-514 | |
| YFU-80 | Pacific Coast Eng. | Alameda CA | 115 | 180 | 1968 | scrapped 1977 | |
| YFU-81 | Pacific Coast Eng. | Alameda CA | 115 | 180 | 1968 | to Panama 2004 | |
| YFU-82 | Pacific Coast Eng. | Alameda CA | 115 | 180 | 1968 | served in Vietnam, IX-506, struck 2002 | |
| YFU-83 | Defoe Shipbuilding | West Bay City MI | 134 | 220 | 1971 | scrapped 2005 | |
| YFU-84 | |||||||
| YFU-85 | |||||||
| YFU-86 | |||||||
| YFU-87 | |||||||
| YFU-88 | Island Dockyard | Kingston NY | 115 | 180 | 1954 | ex-LCU-1471, reclassed as boat 1972 | |
| YFU-89 | Marietta Manufacturing | Point Pleasant WV | 115 | 180 | 1954 | ex-LCU-1576, to GSA 1976 | |
| YFU-90 | Kewaunee SB & E | Kewaunee WI | 115 | 180 | 1954 | ex-LCU-1582, to Vietnam 1971 | |
| YFU-91 | Bethlehem Steel | Staten Island NY | 115 | 180 | 1957 | ex-LCU-1608, reefed 2003 | |
| YFU-92 | Southern Shipbuilding | Slidell LA | 135 | 172 | 1959 | ex-LCU-1620 | |
| YFU-93 | Southern Shipbuilding | Slidell LA | 135 | 172 | 1959 | ex-LCU-1625, scrapped 1979 | |
| YFU-94 | Island Dockyard | Kingston NY | 115 | 180 | 1954 | ex-LCU-1488, reclassed as boat 1972 | |
| YFU-95 | reclassed as boat 1972 | ||||||
| YFU-96 | Bethlehem Steel | Staten Island NY | 115 | 180 | 1957 | ex-LCU-1609, scrapped 1975 | |
| YFU-97 | |||||||
| YFU-98 | Christy Corp. | Sturgeon Bay WI | 135 | 172 | 1957 | ex-LCU-1615, sunk as target 1986 | |
| YFU-99 | Southern Shipbuilding | Slidell LA | 135 | 172 | 1959 | ex-LCU-1622, scrapped 1977 | |
| YFU-100 | Christy Corp. | Sturgeon Bay WI | 135 | 172 | 1957 | ex-LCU-1610, scrapped 2005 | |
| YFU-101 | Christy Corp. | Sturgeon Bay WI | 135 | 172 | 1957 | ex-LCU-1612, sunk as target 1986 | |
| YFU-102 | Marinette Marine | Marinette WI | 117 | 190 | 1969 | ex-LCU-1642, scrapped 2005 | |