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An azipod is an azimuth thruster, an engine and ship's propeller in an underslung pod which is azimuth adjustable.
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∙ 9y ago
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How much do a azipod propulsion cost?
Around 60 million US Dollar
How does a cruise work?
Most cruise ships now days are diesel-electric. In other words, they run a diesel motor which will turn a generator to make electricity, which is then transfered to spin a shaft attached to (a) propeller(s), or more commonly (an) azipod(s). If you are talking about the voyage, passengers buy tickets, go on the ship, buy souvenirs,stay a few nights, eat good food, go on land excursions and leave happy. It's for pure leisure.
What are the elements for steering the ship?
A ship is normally steered using its rudder. Dependent on vessel type this may be a single rudder or twin. The rudder is normally positioned behind the propeller. A rudder is shaped as a foil, and when the rudder is turned with water flowing over it, the rudder acts much like the wing of an aircraft and provides lift (in this case axially). the lift is a force which acts through the rudder stock and "pintle" bearings which transfer that force to the aft end of the ship, moving it. As the vessel is moving forward and the hull is shaped to pass through the water in a hydrodynamic fashion, the ship will turn. The force to turn the rudder is supplied via the steering gear. This is normally in the form of a hydraulic ram (or rams) coupled to a tiller keyed in on the top of the rudder. The hydraulic rams get a signal from the ships wheelhouse (or bridge) normally via electric solenoids. The hydraulic fluid under pressure is then admitted to the relevant cylinder, driving the rudder over. A feedback is provided to the input. The input is normally a small wheel, joystick or autopilot. The days of a large wooden ships wheel are no more! Cruise ships may have an "azipod". They would not be fitted with a rudder, but the propeller is fitted to a rotating "pod" fitted under the hull. As the pod rotates the thrust from the propeller moves the hull around.
