The lead ship of the new generation battleship line for the Royal Navy. She was significantly superior to her predecessors in terms of armour and AA defence power. Due to the international restrictions on armament, the battleships’ guns had a relatively small caliber of 356 mm.

The Bellerophon-class battleships were developed from the renowned Dreadnought class. The ship inherited turbine propulsion and a main battery consisting of ten 305 mm guns from her predecessor, but, unlike the prototype, she had armored torpedo protection.

The first dreadnought ship in the world to carry 343 mm main guns; she was superior to all battleships built before her in terms of firepower. Besides this, in contrast to her British predecessors, the ship had reinforced side armor and a more advanced arrangement of artillery guns.