Floating Workshop
Used as a floating machine shop at the Yard in Curtis Bay
Model: No
| Designation | Name | Class | Service | Comments | Pictures |
| USCGC | Alpha (ex YR 1) | 113 YR | 1928 – 1940 |
Floating Machine Shop
Former cadet training cutter
Replaced Alpha as floating workshop at the Yard in Curtis Bay
Model: No
| Designation | Name | Class | Class | Hull | Service | Comments | Picture |
| USCGC | Beta (Former Alexander Hamilton) |
Misc CGC 168 | WIX | 272 | 1942 – 1944 | Replaced Alpha as the floating workshop at the Yard in Curtis Bay |