| Battlecruiser | Comm | LOA (ft) | Beam (ft) | Std. Disp. (tons) | Full Load Disp. (tons) | Shafts | Armor | Speed kts | Guns |
| Lion | Aug 1910 | 700 | 88.5 | 26270 | 29680 | 4 | 9" | 27 | 8-13.5" (4x2), 16-4", 2-TT (beam) |
| Princess Royal | April 1911 | ||||||||
| LOA (inches) | Beam (inches) | Std. Disp. (lbs) | Full Load (lbs) | Pump | Armor | Speed 100' | Guns | ||
| 87.50 | 11.06 | 66.5 | 75.1 | 1 3/4 | 3/32" | 42.2 | 8-7/32, 16-BB, 3-TT |