Warship machinery was generally intended for prolonged cruising with shorter periods at high speed. Wartime destroyers often spent much longer near maximum speed than that operating pattern allowed. Their turbines wore out faster, producing the recurring problems nicknamed 'turbinitis'. Repair or replacement requirements followed from the intensity of use as well as the machinery's design.
Notable Point · 2:01:07-2:01:42
Why sustained high speed gave destroyers 'turbinitis'
The contrast between cruising assumptions and prolonged wartime speed explains accelerated destroyer turbine wear.