All the modern cruise ships have some sort of sonar on board. It is used to look at the depth of water below the keel. Sonar is relatively cheap because the current electronics technology and the manufacturing techniques used for it are advanced. Sonar rigs are so cheap that small 2- or 3-person fishing boats can be equipped with it at only a modest cost. The so-called fish finders can be had for a couple of hundred bucks. When the safety of a large and expensive passenger ship and the lives of passengers are at stake, why not have a unit on board to tell you how deep the water is? They cost benefit ratio is such that it is crazy not to have a sonar unit or two on board. Sonars have been able to give cruise ships and other ships clear and successful navigation even at times when conditions are not that well.
Yes sonar can be used at periscope depth. Surface ships also have sonar arrays on them. They are usually used to detect submarines.
There is no 'off season' for cruise ships. They need to maximise there use to make a profit.
Often ships will use sonar to map the seafloor.
Many people enjoy cruise ships. I like to drive using cruise control.
A sonar uses one device and a sea beam uses a dozen sonar devices.
A sonar uses one device and a sea beam uses a dozen sonar devices.
definetly cruise ships.
That is a question that cannot be answered exactly. Different cruise ships of different sizes use different amounts of fuel. I can tell you that there are some cruise ships that use no fuel. There are several large cruise ships that are powered by sails.
Sonars were used to detect any objects that got into the detection field of the sonar. By this, the military could detect enemy submarines etc., which they couldn't see normally because of the opacity and/or darkness of the water.
None. No cruise ships sank in 2014.
See the nearby link for a list of cruise ships.