(ASR-17), canceled 12 August 1945 USS Windhover (ASR-18), canceled 12 August 1945 Penguin-class USS Penguin (ASR-12) USS Bluebird (ASR-19) USS Skylark (ASR-20) Pigeon-class USS Pigeon (ASR-21) USS Ortolan (ASR-22) Cargo Transport Submarines (ASSA) Fleet Tugs (AT) USS Patapsco (AT-10) USS Patuxent (AT-11) USS Wando (AT-17), later YT-123 USS Chemung (AT-18), later YT-124 USS Allegheny (AT-19) AT-40 to AT-45 – Canceled 1918 USS Iroquois (AT-46) USS Osceola (AT-47) USS Peoria (AT-48) USS Piscataqua (AT-49) USS Potomac (AT-50) USS Uncas (AT-51), later YT-110 USS Navajo (AT-52), later IX-56 USS AT-53 USS Conestoga (AT-54), ex-SP-1128, disappeared June 1921, 56 killed USS Genesee (AT-55), ex-SP-1116, scuttled 5 May 1942 at Corregidor USS Lykens (AT-56), ex-SP-876 USS Sea Rover (AT-57), ex-SP-1014 USS Undaunted (AT-58) USS Challenge (AT-59), ex-SP-1015, later YT-126, YTM-126 USS Bay Spring (AT-60) USS Cahokia (AT-61) USS Tamaroa (AT-62), later YT-136 USS Acushnet (AT-63) USS Tuscarora (AT-77) USS Carib (AT-78) USS Yuma (AT-79) USS Yaqui (AT-80) USS AT-119 USS AT-120 USS Maricopa (AT-146) USS Esselen (AT-147) USS Chetco (AT-166) USS Chatot (AT-167) Sonoma-class USS Sonoma (AT-12) USS Ontario (AT-13) Arapaho-class USS Arapaho (AT-14) USS Mohave (AT-15), wrecked 13 February 1928, 3 killed USS Tillamook (AT-16) Bagaduce-class USS Sagamore (AT-20) USS Bagaduce (AT-21) USS Tadousac (AT-22) USS Kalmia (AT-23) USS Kewaydin (AT-24) USS Umpqua (AT-25) USS Wandank (AT-26) USS Tatnuck (AT-27) USS Sunnadin (AT-28) USS Mahopac (AT-29) USS Sciota (AT-30) USS Koka (AT-31), grounded 7 December 1937 USS Napa (AT-32), scuttled to avoid capture 8 April 1942 USS Pinola (AT-33) USS Algorma (AT-34) USS Carrabasset (AT-35) USS Contocook (AT-36) USS Iuka (AT-37) USS Keosanqua (AT-38) USS Montcalm (AT-39) Cherokee-class USS Navajo (AT-64), sunk by torpedo 12 September 1943, 17 killed USS Seminole (AT-65), sunk by naval gunfire Tulagi 25 October 1942, 1 killed USS Cherokee (AT-66) USS Apache (AT-67) USS Arapaho (AT-68) USS Chippewa (AT-69) USS Choctaw (AT-70) USS Hopi (AT-71) USS Kiowa (AT-72) USS Menominee (AT-73) USS Pawnee (AT-74) USS Sioux (AT-75) USS Ute (AT-76) USS Bannock (AT-81) USS Carib (AT-82) USS Chickasaw (AT-83) USS Cree (AT-84) USS Lipan (AT-85) USS Mataco (AT-86) USS Moreno (AT-87) USS Narragansett (AT-88) USS Nauset (AT-89) USS Pinto (AT-90) USS Seneca (AT-91) USS Tawasa (AT-92) USS Tekesta (AT-93) USS Yuma (AT-94) USS Zuni (AT-95) USS Chilula (AT-153) Abnaki-class USS Abnaki (AT-96) USS Alsea (AT-97) USS Arikara (AT-98) USS Chetco (AT-99) USS Chowanoc (AT-100) USS Cocopa (AT-101) USS Hidatsa (AT-102) USS Hitchiti (AT-103) USS Jicarilla (AT-104) USS Moctobi