In an aircraft carrier the hangar deck corresponds to the upper deck, but the numbering of decks starts from the weather (flight) deck.
Into ethwla inqwelo moya zomlo idekhi yeshedi yenqwelo moya iyangqinelana nedekhi ephezulu, kodwa ukubalwa kwedekhi kuqala kwimozulu yedekhi zenqwelo moya.