| Attack Cargo | Comm | LOA (ft) | Beam (ft) | Std. Disp. (tons) | Full Load Disp. (tons) | Shafts | Armor | Speed kts | Guns |
| Artemis (AKA 21) | 1944 | 426 | 58 | 6740 | 6740 | 2 | . | 18 | 1-5 inch, |
| Athene (AKA 22) | |||||||||
| LOA (inches) | Beam (inches) | Std. Disp. (lbs) | Full Load (lbs) | Pump | Armor | Speed 100' | Guns | ||
| 53.25 | 7.25 | 17.1 | 17.1 | 3/4 | 1/32" | 63.3 | 1 BB |