"Tsesarevich"s most obvious design feature was her tumblehome hull. This had several advantages because it allowed greater freeboard since the narrow upper decks reduced the structural weight of the vessel's hull, it increased the field of fire of guns mounted on the sides, and it reduced the ship's roll in heavy seas. Its great disadvantage was that it reduced buoyancy and stability which contributed to excessive heel during turns. During the Battle of the Yellow Sea in August 1904, Imperial Japanese Navy observers thought the "Tsesarevich" was going to capsize when she suddenly turned out of the battleline.