Carnival Cruise Line to use ‘floating dry dock’ to fix Carnival Vista’s broken engines

Azipods, developed 30 years ago by Swedish company ABB and Finnish shipyard Masa-Yards, allow for more maneuverability as the engines are directly connected to the propellers in a structure that is completely outside the ship’s hull. But problems over time can wear the engines down, and other cruise lines have had to do repairs on them, including Royal Caribbean Oasis of the Seas earlier this year.