| Navy YTL | ex Army MTL | Dsn. | Bldr. for Army | Accepted | To Navy | Navy Assignment | Notes |
| 640-649 | 1166-1174 | 324a | Hodgson-Greene-Haldeman, Long Beach | 10-11.43 | 4.44 | 14ND | -- |
| 650-659 | 1202-1211 | 324a | Wilson Co. | 10-11.43 | 8.44 | PCSRV | -- |
| 660 | 242 | 324 | Moyer Co., Ocean City NJ | 3-4.43 | 12.44 | NAOTC | -- |
| 661 | 406 | 410 | James E. Graves, Marblehead, Mass | 1-4.44 | 6.44 | 1ND | -- |
| 662 | 785 | 410 | Eddy SB Corp, Bay City, Mich | 11.43-2.44 | 7.44 | 1ND | MTL795 in source |
| 663-664 | 787-788 | 410 | Eddy SB Corp, Bay City, Mich | 11.43-2.44 | 8.44 | 13ND | -- |
| 665-669 | 887-891 | 410 | Gar Wood Industries, Marysville, Mich. | 1-3.44 | 8-9.44 | SWSRV | -- |
| 670-671 | 899-900 | 410 | Gar Wood Industries, Marysville, Mich. | 1-3.44 | 9.44 | SWSRV | -- |
| 672-675 | 945-948 | 410 | Robinson Marine Const., Benton Hbr., Mich. | 11.43-2.44 | 11.44-1.45 | SWSRV | -- |
| 676 | 949 | 410 | Gulf Marine Ways, Galveston, Tex | 12.43-1.44 | 12.44 | SWSRV | -- |
| 677-678 | 952-953 | 410 | Gulf Marine Ways, Galveston, Tex | 12.43-1.44 | 11-12.44 | SWSRV | -- |
| 679 | 956 | 410 | Gulf Marine Ways, Galveston, Tex | 12.43-1.44 | 12.44 | SWSRV | -- |
| 680 | 958 | 410 | Gulf Marine Ways, Galveston, Tex | 12.43-1.44 | 1.45 | SWSRV | -- |
| 681-683 | 961-963 | 410 | Gulf Marine Ways, Galveston, Tex | 12.43-1.44 | 12.44-1.45 | SWSRV | 683 to Navy 8.45 |
| 684-689 | 993-998 | 410 | Eddy SB Corp, Bay City, Mich | 11.43-2.44 | 11.44-1.45 | SWSRV, PCSRV, 11ND | -- |
| 690-694 | 1178-1182 | 324a | Hodgson-Greene-Haldeman, Long Beach | 10-11.43 | 11.44-2.45 | 11ND, PCSRV | 694/1182 "not used" |
| 695-698 | 1183-1186 | 324a | Hodgson-Greene-Haldeman, Long Beach | 10-11.43 | 7.45 | UNK. | 698/1186 canc. |
| 699 | 1187 | 324a | Hodgson-Greene-Haldeman, Long Beach | 10-11.43 | 11.44 | 11ND | -- |
|
Fates.YTL-693 was lost on 23 April 1947. Units not previously disposed of were reclassified as small boats on 8 June 1948. Design 324. Tug, harbor, single 110hp diesel, wood, 46-0 oa, 10-6 mld, dph 5-10.5 mld. 1st specifications Oct 1942. Design 324-A. Tug, harbor, single 150hp diesel or 125hp gasoline, wood, 46' or 47-5 oa, 10-6 mld, 5-10.5 dph mld. 1st specs. Jun 1943. This was Design 324 with gasoline propulsion although five had diesels. All the navy units were gasoline. Design 410. Tug, harbor, tunnel stern, single 150hp diesel or 125hp gasoline, wood, 46-0 oa, 10-6 mld, 5-10.5 dph mld. 1st specifications 27 Sep 1943. This was Design 324-A revised with a shallow draft. All the navy units were gasoline except YTL-661 and 665-671. Assignment codes NAOTC: Naval Air Operational Training Command PCSRV: Service Force, Pacific Fleet SWSRV: Service Force, 7th Fleet Sources: The Army's contracts for marine tow launches including individual MTL numbers are on pages 26-28 and 35-36 of the Report of Army Small Boat Construction, 1 July 1940 to 31 May 1945, available here. The Navy's Bureau of Ordnance Vessel Register, 25 July 1945 (copy not available) provides the correlations of the Army MTL numbers with the Navy's YTL numbers and the Navy assignments, while the service craft section of the 1949 Ships Data Book provides the Navy acquisition dates. |