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Diamond Princess (ship)
Encyclopedia
Diamond Princess is a large cruise ship
Cruise ship
A cruise ship or cruise liner is a passenger ship used for pleasure voyages, where the voyage itself and the ship's amenities are part of the experience, as well as the different destinations along the way...
owned and operated by Princess Cruises
Princess Cruises
Princess Cruises is a British-American owned cruise line, based in Santa Clarita, California in the United States. Previously a subsidiary of P&O Princess Cruises PLC, the company is now one of ten cruise ship brands operated by Carnival Corporation & PLC and accounts for approximately 19% share...
. She began operation in March 2004 and primarily cruises in Alaska
Alaska
Alaska is the largest state in the United States by area. It is situated in the northwest extremity of the North American continent, with Canada to the east, the Arctic Ocean to the north, and the Pacific Ocean to the west and south, with Russia further west across the Bering Strait...
during the summer and the Asia
Asia
Asia is the world's largest and most populous continent, located primarily in the eastern and northern hemispheres. It covers 8.7% of the Earth's total surface area and with approximately 3.879 billion people, it hosts 60% of the world's current human population...
in the winter. She is a Grand Class ship and subclassed as a Gem Class ship. Her and her sister ship, Sapphire Princess
Sapphire Princess
The Sapphire Princess is a cruise ship owned by Princess Cruises which entered service in 2004. It is one of the world's largest cruise ships, with a capacity of approximately 2670 passengers and is the sixth Gem Class ship built by Princess Cruises....
, are the largest subclass of Grand class ships, as they have a beam of 123ft while all other Grand Class ships have a beam of 118ft. Her only sister ship is the Sapphire Princess
Sapphire Princess
The Sapphire Princess is a cruise ship owned by Princess Cruises which entered service in 2004. It is one of the world's largest cruise ships, with a capacity of approximately 2670 passengers and is the sixth Gem Class ship built by Princess Cruises....
as both were built in Nagasaki, Japan by Mitsubishi Heavy Industries
Mitsubishi Heavy Industries
, or MHI, is a Japanese company. It is one of the core companies of Mitsubishi Group.-History:In 1870 Yataro Iwasaki, the founder of Mitsubishi took a lease of Government-owned Nagasaki Shipyard. He named it Nagasaki Shipyard & Machinery Works, and started the shipbuilding business on a full scale...
.
Construction
The ship's hull was originally due to be called the Sapphire PrincessSapphire Princess
The Sapphire Princess is a cruise ship owned by Princess Cruises which entered service in 2004. It is one of the world's largest cruise ships, with a capacity of approximately 2670 passengers and is the sixth Gem Class ship built by Princess Cruises....
. Construction was delayed when a huge fire swept through the ships deck during construction. Because the ship's completion would be delayed for some time, her sister ship which was being constructed at the same time assumed the role of the Sapphire. This name swap helped to keep the delivery date of the Sapphire on time, while delaying the delivery of the Diamond. It was the first Princess Cruises
Princess Cruises
Princess Cruises is a British-American owned cruise line, based in Santa Clarita, California in the United States. Previously a subsidiary of P&O Princess Cruises PLC, the company is now one of ten cruise ship brands operated by Carnival Corporation & PLC and accounts for approximately 19% share...
ship to be built in a Japanese shipyard and lacks the "wing" or "spoiler" across the rear (which can be seen on the Caribbean Princess.)
Machinery
The diesel-electric plant consists of four diesel generators and a gas turbine generator. The diesel generators are WärtsiläWärtsilä
Wärtsilä is a Finnish corporation which manufactures and services power sources and other equipment in the marine and energy markets. The core products of Wärtsilä include large combustion engines...
46 series common rail engines, two of the straight 9 cylinder configuration, and two of the straight 8 cylinder configuration. The 8 and 9 cylinder engines can produce approximately 81⁄2 and 91⁄2 MW of power respectively. These engines are fueled with Heavy Fuel oil (HFO or bunker c) and Marine Gas Oil (MGO) depending on the local regulations regarding emissions, as MGO produces much lower emissions but is much more expensive. The gas turbine generator is a GE 2500, producing a peak of 25 MW of power and being fueled my MGO. This generator is much more expensive to run than the diesel generators, and is used mostly in areas, such as Alaska, where the emissions regulations are strict. It is also used when top speed is required to make it to a port in a short time period. There are two propulsion electric motors which drive fixed-pitch propellers and six thrusters used during maneuvering; three bow and three stern. The propulsion electric motors (PEMs), are conventional synchronous motors made by Alston Motors. The two motors are each rated to 20 MW and have a maximum speed of 154 rpm. (Rated speed of 0-145 rpm.)