1. USS Ranger isn’t a modern carrier
2. Modern carriers can operate for years out at sea and have operated up to 9 months at sea.
We we first were bringing carriers into the gulf, they weren’t allowed into the ports. Too dangerous. They would have to stay out there for the 4 months they were deployed underway.
My point is that no matter how mechanically sound and wonderful our carriers are, they still have human beings operating them (which is part of why they are so wonderful) and you can’t keep that many people out at sea without some downtime.
OK, I dated myself with reference to the USS Ranger. At the time, she WAS omne of our most modern carriers.