I must respectfully disagree. At the intended size of 947' the total room available, outer hull surface to outer hull surface, comes to only 11'-7". Even enlarging the ship to 1080' only gets you up to 13'-2.5". And this is without accounting for hull thickness, which would necessarily reduce the available room. Unless you enlarge the ship to a far more than reasonable size, you can't fit two uninterrupted decks between the upper edge of the rim and the undercut. M.