Published ship speeds describe safe, sustainable operation rather than an inviolable mechanical ceiling. In a decisive chase, commanders may accept boiler wear because the ship can be repaired later but the enemy cannot be recaptured once lost. Firing over another turret poses a similar choice: exercises avoid it because blast might damage sighting equipment, while battle can justify the risk. Combat value can therefore override prudent peacetime limits.
Notable Point · 38:52-40:18
Wartime necessity changes machinery limits
The pursuit illustrates why a navy may accept engine wear or blast damage in combat that would be forbidden during peacetime operation and training.