| Size | Rough Guide | Control | Size Class | SSD Boxes | Excess Damage | Move Cost | Life Support | Manoeuvre Class |
|---|---|---|---|---|---|---|---|---|
| Tiny | Patrol Boats | 1 | 5 | 01-25 | 2 | 0.33 | 0.33 | A nimble |
| Small | Light Cruiser, Ranger | 2 | 4 | 26-75 | 4 | 0.50 | 0.50 | A-B |
| Moderate | 4 | 3 | 76-110 | 4 | 0.66 | 0.66 | B-C | |
| Medium | Hermes, Destroyer | 5 | 3 | 111-149 | 5-6 | 1.00 | 1.00 | C-D |
| Large | Tiger, Triton, Protector | 6 | 2 | 150-189 | 7-8 | 1.50 | 1.50 | C-D |
| Massive | Battlestar, Gunstar | 7 | 2 | 190-300 | 9 | 2.00 | 2.00 | D-E |
| Huge | Excaliber, Warstar | 9 | 2 | 301+ | 9-10 | 2.50 | 3.00 | E-F |
