Gaia
| Name | Gaia |
| Type | Sailing vessel |
| GRT | 278 tons |
| Country |  Portuguese |
| Built | 1916 |
| Builder | M. G. Amaro, Villa do Conde |
| Operator | Ant. dos Santos, Oporto |
| History |
U-boat attacks on Sailing vessel Gaia
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 22 Sep 1918 | U 157 (Ortwin Rave) | Sunk | Stopped and sunk off the Azores | 37° 13'N, 23° 19'W | Oporto - Para | conserves, flour, maize, and onions |
Position of attack on Gaia
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