Coastal Minesweepers (AMc) Built in WWII

Most recent update: April 18, 2015.


During WWII, a total of 70 wooden-hulled coastal minesweepers, even smaller than the YMSs, were built in 15 boatyards.  There was only one basic design - the 97-foot, 10-knot  "Accentor" class.  In addition, 45 fishing vessels were acquired and converted into minesweepers.  A second class of Base Minesweepers (AMb) was planned but never implemented.

Type # Name Shipbuilder Feet Tons Delivered Disposition
AMc 1 Pipit Martinolich SB 85 210 1936 Ex-Spartan, acquired 1940, returned to owner 1944
AMc 2 Magpie Harbor BB 85 210 1936 Ex-City of San Pedro, acquired 1940, returned to owner 1944
AMc 3 Plover Harbor BB 85 210 1936 Ex-Sea Rover, acquired 1940, returned to owner 1944
AMc 4 Goshawk Foundation SY 150 585 1919 Ex-Penobscot, acquired 1940, AM 79 1940, IX 195 1944, sold 1946 as Bering Sea
AMc 5 Kestrel Salisbury Yachts 99 219 1938 Ex-Chanco, acquired 1940, IX 175 1944, to MARAD 1948
AMc 6 Heath Hen Storey, A. D. 94 270 1936 Ex-Noreen, acquired 1940, small boat 1944, sold 1946
AMc 7 Bunting Martinac SB  80 200 1935 Ex-Vagabond, acquired 1940, in collision and sank 1942
AMc 8 Cockatoo Seattle SB 88 185 1936 Ex-Vashon, acquired 1940, to MARAD 1948
AMc 9 Crossbill Watchorn Yachts 81 213 1937 Ex-North Star, acquired 1940, to MARAD 1948
AMc 10 Longspur Martinac SB 81 200 1935 Ex-New Ambasador, acquired 1940, to MARAD 1945
AMc 11 Sanderling Harbor BB 78 180 1937 Ex-New Conti di Savoia, acquired 1940, returned to owner 1945
AMc 12 Grouse Martinac SB 80 200 1935 Ex-New Bol, acquired 1940, to MARAD 1945
AMc 13 Hornbill Martinolich SB 83 195 1940 Ex-J. A. Martinolich, acquired 1940, in collision and sank 1942
AMc 14 Condor   78 195 1937 Ex-New Example, acquired 1940, to MARAD 1946
AMc 15 Waxbill Fulton Shipyard 83 195 1936 Ex-Leslie J. Fulton, acquired 1940, returned to owner 1945
AMc 16 Chatterer   83 152 1936 Ex-Sea Breeze, acquired 1940, to MARAD 1946
AMc 17 Pintail Kruse & Banks 85 210 1937 Ex-Three Star, acquired 1940, to MARAD 1945
AMc 18 Nightingale Larson Boat Shop, Al 83 197 1934 Ex-Majestic, acquired 1940, YP 166 1941, returned to owner 1945
AMc 19 Grosbeak Martinac SB 81 185 1935 Ex-Del Rio, acquired 1940, returned to owner 1945, sank 1952
AMc 20 Crow   83 195 1935 Ex-Jardan, acquired 1940, accidentally sunk 1943
AMc 21 Killdeer Larson Boat Shop, Al 106 110 1937 Ex-Vindicator, acquired 1940, IX 194 1944, to MARAD 1945
AMc 22 Flamingo Morse SB 93 199 1940 Ex-Harriet N. Eldridge, acquired 1940, IX 180 1944, struck 1946
AMc 23 Blue Jay Morse SB 93 199 1940 Ex-Charles S. Ashley, acquired 1940, YDT 6 1944
AMc 24 Egret Snow SY 90 110 1937 Ex-Julia Eleanor, acquired 1940, IX 181 1944, to MARAD 1945
AMc 25 Canary Morse SB 93 199 1940 Ex-John G. Morlry, acquired 1940, YDT 7 1944, to MARAD 1948
AMc 26 Humming Bird Morse SB 90 130 1938 Ex-Whaling City, acquired 1940, small boat 1944, to MARAD
AMc 27 Frigate Bird Harbor BB  83 112 1935 Ex-Star of San Pedro, acquired 1940, struck 1944
AMc 28 Mockingbird Morse SB 97 205 1936 Ex-Rio Douro, acquired 1940, to MARAD 1945
AMc 29 Puffin Snow SY 90 225 1936 Ex-Mary Jane, acquired 1940, small boat 1944, returned to owner 1945
AMc 30 Reedbird Larson Boat Shop, Al 87 223 1935 Ex-Fearless, acquired 1940, to MARAD 1946
AMc 31 Sparrow Harbor BB 83 112 1929 Ex-Pacific, acquired 1940, YT 172 1940, Marin (YN 53) 1941, YNT 21 1942, to MARAD 1947
AMc 32 Courser   79 148 1938 Ex-Nancy Rose, acquired 1940, struck 1944
AMc 33 Firecrest   77 151 1937 Ex-S. G. Giuseppe, acquired 1940, struck 1944
AMc 34 Parrakeet Larson Boat Shop, Al 79 197 1934 Ex-Jackie Sue, acquired 1940, to MARAD 1945
AMc 35 Road Runner Western BB 81 175 1939 Ex-Treasure Island, acquired 1940, to MARAD 1945
AMc 36 Accentor W. A. Robinson 97 205 24-Jul-41 Sold to Higgins 1946
AMc 37 Bateleur W. A. Robinson 97 205 26-Aug-41 Sold 1946
AMc 38 Barbet W. A. Robinson 97 205 29-Sep-41 Sold to Nassau Fertilizer 1947, converted to fishing vessel Barbet
AMc 39 Brambling W. A. Robinson 97 205 15-Oct-41 Sold 1947
AMc 40 Caracara Bristol Yachtbuilding 97 205 30-Dec-41 Sold 1946
AMc 41 Charcalaca Bristol Yachtbuilding 97 205 11-Sep-41 Sold 1946
AMc 42 Chimango Gibbs Gas Engine 97 205 3-Jun-41 Sold 1946
AMc 43 Cotinga Gibbs Gas Engine 97 205 14-Jun-41 Sold 1946
AMc 44 Courlan Gibbs Gas Engine 97 205 25-Jun-41 Sold 1946
AMc 45 Develin Gibbs Gas Engine 97 205 9-Jul-41 Sold 1946
AMc 46 Fulmar Greenport Basin 97 205 25-Jun-41 Sold 1946
AMc 47 Jacamar Greenport Basin 97 205 25-Jun-41 Sold 1946
AMc 48 Limpkin Greenport Basin 97 205 8-Aug-41 Sold 1946 as Hiawatha, later Blue Waters
AMc 49 Lorikeet Greenport Basin 97 205 8-Aug-41 Sold 1946
AMc 50 Marabout Herreshoff Mfg. 97 205 8-Jul-41 Sold to City of Boston 1946, converted to fireboat James McTighe, sold 1972
AMc 51 Ostrich Herreshoff Mfg. 97 205 14-Jul-41 Sold 1946
AMc 52 Roller Snow Shipyards 97 205 12-Aug-41 Sold 1946
AMc 53 Skimmer Snow Shipyards 97 205 26-Aug-41 Sold 1946
AMc 54 Tapacola Snow Shipyards 97 205 20-Sep-41 Sold 1946
AMc 55 Turaco Snow Shipyards 97 205 9-Oct-41 Sold 1946
AMc 56 Kingbird Quincy Dry Dock 97 206 1939 Ex-Governor Saltonstall, acquired 1940, IX 176 1944, to MARAD 1946
AMc 57 Phoebe Western BB 95 205 2-May-41 Ex-Western Robin, acquired 1940, sold back to builder 1946
AMc 58 Rhea Martinolich SB 98 307 15-Oct-41 Ex-Hull 250, acquired 1940, to MARAD 1946
AMc 59 Ruff Martinolich SB 98 307 15-Oct-41 Ex-Speaker (Hull 251, acquired 1940, to MARAD 1946
AMc 60 Chanticleer         Ex-R. Lenahan, later YF 381, YP 403
AMc 61 Acme Greenport Basin 97 205 11-Sep-41 Scrapped 1947
AMc 62 Adamant Greenport Basin 97 205 26-Sep-41 Scrapped 1947
AMc 63 Advance Greenport Basin 97 205 10-Oct-41 Scrapped 1947
AMc 64 Aggressor Greenport Basin 97 205 24-Oct-41 Scrapped 1947
AMc 65 Assertive Bristol Yachtbuilding 97 205 7-Mar-42 Sold 1946
AMc 66 Avenge Bristol Yachtbuilding 97 205 2-Apr-42 Sold to United Fisheries 1946
AMc 67 Bold Bristol Yachtbuilding 97 205 27-May-42 Sold 1948
AMc 68 Bulwark Hodgdon Bros. 97 205 5-Feb-42 Sold to City of Boston 1946, converted to fireboat Joseph J. Luna, sold 1972, sank 2009
AMc 69 Combat Hodgdon Bros. 97 205 24-Feb-42 Sold 1946
AMc 70 Conqueror Warren Fish Co. 97 205 6-Mar-42 Sold 1946
AMc 71 Conquest Warren Fish Co. 97 205 9-Mar-42 Sold 1946
AMc 72 Courier Herreshoff Mfg. 97 205 11-Oct-41 Sold 1946
AMc 73 Defiance Herreshoff Mfg. 97 205 24-Nov-41 Sold 1946
AMc 74 Demand Gibbs Gas Engine 97 205 5-Sep-41 Sold 1946
AMc 75 Detector Gibbs Gas Engine 97 205 18-Sep-41 Sold 1946
AMc 76 Dominant Gibbs Gas Engine 97 205 29-Sep-41 Sold 1946
AMc 77 Endurance Gibbs Gas Engine 97 205 11-Oct-41 Sold 1946
AMc 78 Energy W. A. Robinson 97 205 1-Jan-42 Reclassified 1943 as YDT 3, sold 1960 as H. C. Hayes, later Telson Queen 1963, Atlas 1989
AMc 79 Exultant W. A. Robinson 97 205 14-Jan-42 Reclassified 1943 as YDT 4, sunk as target 1973
AMc 80 Fearless W. A. Robinson 97 205 Feb-42 Reclassified 1943 as YDT 5, sunk as target 1973
AMc 81 Fortitude W. A. Robinson 97 205 Feb-42 Reclassified 1943 as YDT 2, struck 1947
AMc 82 Governor Camden Shipbuilding 97 205 29-Jan-42 Sold 1946
AMc 83 Guide Camden Shipbuilding 97 205 17-Mar-42 Sold 1946
AMc 84 Heroic Warren Boat Yard 97 205 25-Mar-42 Sold 1946
AMc 85 Ideal Warren Boat Yard 97 205 24-Apr-42 Sold 1946
AMc 86 Industry Fulton Shipyard 97 205 19-Dec-41 Lost in typhoon off Okinawa 9-Oct-45
AMc 87 Liberator Fulton Shipyard 97 205 22-Feb-42 Sold 1946
AMc 88 Loyalty Fulton Shipyard 97 205 17-Jan-42 Wrecked en route to Okinawa 16-Sep-45
AMc 89 Memorable Fulton Shipyard 97 205 9-Mar-42 Sold 1946
AMc 90 Merit Fulton Shipyard 97 205 28-Mar-42 To USF&WS 1947
AMc 91 Observer Fulton Shipyard 97 205 14-Apr-42 Sold to Douglas Oil 1946, later Sea Wolf
AMc 92 Paramount Delaware Bay SB 97 205 31-Dec-41 Sold 1946
AMc 93 Peerless Delaware Bay SB 97 205 19-Feb-42 To US Army 1946
AMc 94 Pluck Noank Shipbuilding 97 205 6-Oct-42 Sold 1946
AMc 95 Positive Noank Shipbuilding 97 205 20-Aug-42 Sold 1946
AMc 96 Power/Reaper Noank Shipbuilding 97 205 14-Nov-42 Sold to Cape May BW 1946
AMc 97 Prestige Anderson & Cristofani 97 205 23-Dec-41 Sold 1946
AMc 98 Progress Anderson & Cristofani 97 205 24-Jan-42 Sold 1946
AMc 99 Radiant Anderson & Cristofani 97 205 11-Feb-42 Sold to North Shore Packing 1946
AMc 100 Reliable Anderson & Cristofani 97 205 9-Mar-42 Sold 1946
AMc 101 Rocket Anderson & Cristofani 97 205 25-Mar-42 Sold 1946
AMc 102 Royal Anderson & Cristofani 97 205 13-Apr-42 Sold 1946
AMc 103 Security H. G. Marr 97 205 11-Mar-42 Sold to Philip Filetto 1946, later Evelyn M. Holmes. abandoned 1974
AMc 104 Skipper H. G. Marr 97 205 29-May-42 Sold 1946
AMc 105 Stalwart Snow Shipyards 97 205 22-Jan-42 Sold 1946
AMc 106 Summit Snow Shipyards 97 205 29-Jan-42 Sold 1946
AMc 107 Trident Snow Shipyards 97 205 18-Feb-42 Sold 1946
AMc 108 Valor Snow Shipyards 97 205 24-Mar-42 In collision in Buzzard's Bay and lost 1944
AMc 109 Victor Snow Shipyards 97 205 17-Apr-42 Sold 1946
AMc 110 Vigor Snow Shipyards 97 205 4-May-42 Sold 1946
AMc 111 Agile Petersen SB 96 215 26-Nov-41 Acquired 1941, sold 1946
AMc 112 Affray Tacoma Boat 89 205 2-Dec-41 Acquired 1941, returned to owner 1946
AMc 113-142           Redesignated AM 136-165
AMc 143-148           Redesignated YP 381-386
AMc 149 Nightingale Western BB 89 205 2-Dec-41 Ex-Saint Francis, acquired 1941 as YP 150, later AMc 149, IX 177, sold 1946
AMc 150-199           Redesignated APc 1-50
AMc 200-202           Redesignated YP 387-389
AMc 203 Medrick Astoria Marine 136 338 8-Jan-44 Ex-PCS 1464, sold 1947
AMc 204 Minah Astoria Marine 136 338 15-Feb-44 Ex-PCS 1465, later AMCU 14, MHC 14, sold 1960
AMb 1           Redesignated small boat 1944
AMb 2-22           Redesignated YP 360-380 1942