Ocean-Going Tugs (AT)

Later Old Ocean Tugs (ATO). See also ATF and ATA


On Hand 1922

  • AT-10 (Patapsco) class (AT 10-11)
  • AT-12 (Sonoma) class (AT 12-13)
  • AT-14 (Arapaho) class (AT 14-18)
  • AT-19 (Allegheny) class (AT 19-45)
  • AT-46 (Iroquois)
  • AT-49 (Piscataqua)
  • AT-52 (Navajo)
  • AT-55 (Genesee)
  • AT-56 (Lykens)
  • AT-58 (Undaunted)
  • AT-59 (Challenge)
  • AT-60 (Bay Spring)

1922-1945




Other AT/ATO Hull Numbers, 1920-1945

  • AT-47 (Osceola): Decommissioned 1922, sold 1923
  • AT-48 (Peoria): To YT-109 1921, sold 1922
  • AT-50 (Potomac): Sold 1922
  • AT-51 (Uncas): To YT-110 1921, sold 1922
  • AT-53 (Delaware): To YT-111 1921
  • AT-54 (Conestoga): Lost 1921
  • AT-57 (Sea Rover): Sold 1922
  • AT-132 (Brant): See ARS-32
  • See also BAT 1-14

Note: The pre-1920 numbering system for Navy-built tugs continued after Tug No. 45 (Tug No. 19 class) with Harbor Tugs Nos. 46-85 and Motor Tugs Nos. 86-101. These along with Tugs Nos. 1-9 were always considered to be yard (service) craft and were classified YT in 1920.