Battleships
- Reshadieh (laid down 1911) - Confiscated by Britain 1914, renamed Erin
Displacement (normal) 23,000 tons Main armament ten 13.5-inch (343mm) guns in five twin turrets (two superfiring); turret arrangement A-Bs-Q-Xs-Y Secondary armament sixteen 6-inch (152mm) quick-firing guns in casemates Design speed 21 knots
- Sultan Osman I (laid down 1911) - ex-Brazilian Rio de Janeiro; confiscated by Britain 1914, renamed Agincourt
Displacement (normal) 27,500 tons Main armament fourteen 12-inch (305mm) guns in seven twin turrets (two superfiring); turret arrangement A-Bs-Q-P-X-Ys-Z Secondary armament twenty 6-inch (152mm) quick-firing guns in casemates Design speed 22 knots
Battlecruisers
- Yavuz/Sultan Selim (laid down 1909) ex-German Goeben (Moltke-class); transferred from Germany 1914, scrapped 1971
Displacement (normal) 22,640 tons Main armament ten 11.1-inch (283mm) guns in five twin turrets (two superfiring); turret arrangement A-right wing-left wing-Xs-Y Secondary armament twelve 5.9-inch (150mm) guns in casemates* Design speed 27 knots (* - after mine damage during WW1, secondary armament reduced to ten guns.)