Steam turbines and carrier handling

Propulsion mattered as an operational issue beyond the figures on a specification sheet. The diesel reliability problems were tied to carrier duty: turning into wind, changing speed quickly, and sustaining aviation cycles. Large contemporary diesels worked best at steady output, while flight operations imposed rapid and repeated power changes. Steam turbines therefore made the single-screw Bogue and Ruler type a better fit for those demands even when nominal top speeds looked similar. A modern diesel-electric comparison reinforces the lesson that machinery has to suit its duty cycle as well as its theoretical efficiency and reliability.