They only work to minimize roll (left to right motion) but not pitch (up and down forward and aft motion). Accommodating over 5,700 guests (plus staff), the cruise ship is 1,036 feet long, as high as the Eiffel Tower, and has 19 decks We were surprised how much movement of the ship we felt (I even had to hold both wheels of my wheelchair strongly, to keep from being thrown against corridor walls, etc)once we left Galveston all the way to Key West, and then halfway to Grand Cayman we had "high seas" 10'-14', due to a cold front that had come through and the ship was tossed around pretty hard. To attach the blades to the main body, welded joints hold together steel plates bolted tightly at the point where they meet the hub. This year we are on the Freedom of the seas 9/23 (Miami, eastern caribbean itinerary) and wonder if the technology of the ship stabilizers, etc has improved dramatically since the late 1990's ship designs? A typical configuration includes four separate, triangularly shaped sets arranged symmetrically around a single axis. That controller processes these two factors using data algorithms and transmits back the correct response to counterbalance against the roll, using fins and hydraulic pressure. The main benefits of cruise ship stabilizers include increased comfort for passengers and crew, improved safety, and better fuel efficiency. It is also my understanding that stabilizers are usually shut down in rough seas in favor of speed. Stabilizers are less effective in reducing pitch motion, which is the up-and-down motion of the ship. Seasickness I often hear that the fear of seasickness is the reason many people choose not to cruise. Some older ships use these group chillers to provide all cooling for the rooms, and the "thermostat" is only a damper adjustment to allow more or less cool air. The degree in which a ship will roll, pitch and yaw in different sea conditions depends on its inherent stability.
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