https://en.wikipedia.org/wiki/Nimitz-class_aircraft_carrier#Design_differences_within_the_class
Something like the Abraham Lincoln, Nimitz Class, Theodore Roosevelt sub class. Though still technically Nimitz Class.
Or maybe like airplanes, like the F/a 18, the A/C was one plane, but the E/F/G were a complete redesign, much larger, though visually close. Or Block designation, F 16 Block 40
Something like the Abraham Lincoln, Nimitz Class, Theodore Roosevelt sub class. Though still technically Nimitz Class.
Or maybe like airplanes, like the F/a 18, the A/C was one plane, but the E/F/G were a complete redesign, much larger, though visually close. Or Block designation, F 16 Block 40