How would full-displacement, 16-inch, 28-knot Nelsons affect later battleship designs?
Short answerThey would be the first true fast battleships and would pressure French and British follow-on design while reducing Hood's relative importance.
NotesSuch ships would be far more influential than the historical Nelsons because Britain would possess fast capital ships before foreign equivalents. France would face a stronger incentive to build fast allies. British follow-on design would likely preserve a similar profile and performance standard, while Hood's fleet position would become less singular. The effect flows from speed and armament together rather than either feature in isolation.