CVA-58 was laid down in a dry dock, where its hull could be built without a conventional launch. Putting armour and the strength deck high up at flight-deck level had made the design top-heavy. There was concern that the hull might roll if launched conventionally. Building in the dock was intended to reduce the risk associated with that launch.
Notable Point · 29:19-30:09
Why CVA-58 was laid down in a dry dock
Armour and a strength deck at flight-deck level raised concern that CVA-58 might roll during a conventional launch, so construction began in a dry dock.