Speed and oil firing in a radical design

Would a triple-turret battleship need too many boilers to make a useful speed gain?

Boiler output appears less limiting than turret manufacture, and the same reform coalition could make semi-oil or oil firing plausible.

The discussion weighs 21-knot, 24-knot, and faster alternatives against boiler numbers, cost, and fleet usefulness. Semi-oil or oil firing could power the more ambitious designs in place of an all-coal plant. The counterfactual depends on political as well as technical change: a group able to overcome institutional caution on triple mounts might also win the easier argument for oil. Boilers were demanding industrial products, but more British yards could manufacture them than heavy-gun turrets.