thats basically already what they are, most aircraft carriers have at least one other level on the inside where aircraft are stored and maintained, and there is usually a big paved elevator platform to move aircraft between the flight deck and the interior hangars
Interesting take, considering the first ships converted to be aircraft carriers were done by the British, and the first ships purpose-built to be aircraft carriers were built by Japanβ¦
hmm now why might a country like america need a bunch of air support so far from its borders all the time? most other countries seem to get along fine with only one or two carriers or none at all...