Throughout any voyage on a large ship, routine testing and drills will take place. While crossing the Atlantic on Queen Mary 2 this month the crew spent a whole morning to practice putting out a potential fire in the emergency generator room, and another practicing the launching the rescue rib procedure in the event of a "man overboard" call. This is footage of the testing of her horns. taken from starboard side deck 7 - her promenade deck. One of those horns is an original, taken from the first Queen Mary, and mounted on her modern counterpart. My guess is that this is the deep noted one.