Would the proposed Agincourt have carried 18-inch guns?

Would Agincourt have been built with 18-inch guns in this larger-calibre battleship race?

That depends on the next American step. The historical proposal is also disputed, with three twin 18-inch turrets and four triple 15-inch turrets offered as competing reconstructions.

An American move towards 18-inch guns would give Britain a strong reason to pursue the same calibre, while an intermediate 16.5-inch design could make that step easier. The proposed Agincourt also prompts two competing reconstructions of the historical design. Clarke favours six 18-inch guns in three twin turrets, pointing to references to an earlier three-turret study that has not been located. He also connects surviving 18-inch gun work, spare twin turrets, and small-tube boilers subsequently associated with Courageous and Glorious. Drach's alternative is twelve 15-inch guns in four triple turrets. These are competing interpretations of incomplete evidence, rather than a recovered specification for the ship.