While trains are typically hybrids like that, I don’t think ships are. So they’re optimized for cruise and horribly inefficient while accelerating or decelerat

While trains are typically hybrids like that, I don’t think ships are. So they’re optimized for cruise and horribly inefficient while accelerating or decelerating. But it’s a propeller in water so it just spins inoptimally which isn’t as bad as a steel wheel doing the same.