What would change if USS Boston rather than the Spruance class became the basis for Ticonderoga?
Short answerTiconderoga and the related Type 81 concept would likely grow, and the added space could give the American cruisers a longer service life.
NotesThe counterfactual replaces the Spruance-derived hull behind Ticonderoga with the larger USS Boston conversion concept. That change would push a corresponding Type 81 design upward in size because allied comparison and standardization pressures would operate around a bigger cruiser. More internal volume could also make later upgrades easier. Boston-based Ticonderogas might therefore have remained useful for longer than the historical ships.