| Name | REGIDOR |
| Type | Tug |
| Year | 1928 |
| GRT | 264 |
| Engines | Steam |
| Builder | GOOLE SHIPBUILDING & REPAIRING CO. (1927) LTD. |
| At | GOOLE |
| Launch date | 24-03-1928 |
| Yard number | 279 |
| Owners | Compania Argentina de Navegacion (Nicolas Mihanovich), Buenos Aires |
| History | Prior to 1959 to Flota Argentina de Nav. de Ultramar |
| Fate | In LR 1959 but not 1963 |