CVA-01 straddled two technology generations

Could the Royal Navy's CVA-01 carrier have been built entirely with 1950s technology?

Large parts could have been, but some later engineering and power-supply requirements belonged to the early 1960s.

The CVA-01 concept did not depend uniformly on one technological date. Much of the carrier could be realized with 1950s systems because the design drew heavily on that generation of practice. Some later engineering-plant and power-supply requirements belonged to the early 1960s. A long naval design process can therefore combine mature architecture with newer enabling systems.