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Oasis of the Seas

June 13, 2022

The Oasis of the Seas is reported as the largest cruise ship to visit Halifax. I stationed myself halfway between Shoal Point and Chebucto Head on my favourite rock. The departing ships always have the benefit of the late day or setting sun. This produces the most dramatic images of the vessels.


Oasis of the Seas

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Oasis of the Seas
Oasis of the Seas.jpg
Oasis of the Seas at Nassau, Bahamas, in January 2010
Name Oasis of the Seas
Owner Royal Caribbean Group
Operator Royal Caribbean International
Port of registry Nassau,  Bahamas[1]
Ordered 6 February 2006
Builder STX Europe Turku Shipyard, Finland[6]
Cost US$1.4 billion (2006)[5]
Yard number 1363[1]
Laid down 12 November 2007[3]
Launched 21 November 2008 (float-out)[2]
Christened 30 November 2009[4]
Completed 28 October 2009[1]
Maiden voyage 5 December 2009[4]
Status In service
General characteristics
Class and type Oasis-class cruise ship
Length 360 m (1,181 ft) overall[1]
  • 47 m (154 ft) waterline[1]
  • 60.5 m (198 ft) max beam[1]
Height 72 m (236 ft) above water line[7]
Draught 9.322 m (30.6 ft)[1]
Depth 22.55 m (74.0 ft)[1]
  • 16 passenger decks[8]
  • 18 total decks[8]
Installed power
  • 3 × 13,860 kW (18,590 hp) Wärtsilä 12V46D
  • 3 × 18,480 kW (24,780 hp) Wärtsilä 16V46D
  • 3 × 20 MW (27,000 hp) ABB Azipod,
  •       all azimuthing
  • 4 × 5.5 MW (7,400 hp) Wärtsilä CT3500
  •       bow thrusters[1][7]
Speed 24.5 knots (45.4 km/h; 28.2 mph)[6]
  • 5,606 passengers at double occupancy[8]
  • 6,699 maximum[8]
  • 2,165 on maiden voyage[6]
  • 2,181 as of 2019[8]

Oasis of the Seas is a cruise ship operated by Royal Caribbean International. She is the first of her class, whose ships are the largest passenger ships in the world. Her hull was laid down in November 2007 and she was completed and delivered to Royal Caribbean in October 2009. At the time of construction, Oasis of the Seas set a new capacity record of carrying over 6,000 passengers.[9] The first of her class, she was joined by sister ships Allure of the Seas in December 2010, Harmony of the Seas in May 2016, and Symphony of the Seas in April 2018. Oasis of the Seas conducts cruises of the Caribbean from her home port of PortMiami in Miami, Florida.

Oasis of the Seas surpassed the Freedom-class cruise ships (also owned by Royal Caribbean) to become the largest cruise ship in the world at that time.[10] She was herself surpassed by her sister ship Allure of the Seas, which is 50 millimetres (2.0 in) longer, although this may have been caused by ambient temperature differences at the times the measurements were made.[11] In May 2016, her second sister ship Harmony of the Seas became the new record holder with a length of 362.12 metres (1,188.1 ft),[12] and in March 2018, Symphony of the Seas, the fourth member of the Oasis class, became the new world's largest cruise ship with a length of 361.011 m (1,184.42 ft) and a tonnage of 228,081 GT.

Design and description

The gross tonnage (GT) of Oasis of the Seas at launch was 225,282, but it was expanded to 226,838 GT when additional cabins were added to Deck 14 in 2019.[1][13] Her displacement—the actual mass of the vessel—is estimated at 100,000 metric tons (110,000 short tons), slightly less than that of an American Nimitz-class aircraft carrier.[14]

To keep the ship stable without increasing the draft excessively, the designers created a wide hull; 9.3 metres (31 ft) of the ship sits beneath the water, a small percentage of the ship's overall height. Wide, shallow ships such as this tend to be "snappy", meaning that they can snap back upright after a wave has passed, which can be uncomfortable. This effect, however, is mitigated by the vessel's large size.[15] The cruise ship's officers were pleased with the ship's stability and performance during the transatlantic crossing, when the vessel, in order to allow finishing work to go on, slowed and changed course in the face of winds "almost up to hurricane force" and seas in excess of 12 metres (39 ft).[16][17]

One of the ship's lifeboats

The ship's power comes from six medium-speed, marine-diesel generating sets: three 16-cylinder Wärtsilä 16V46D common rail engines producing 18,860 kilowatts (25,290 hp) each and three similar 12-cylinder Wärtsilä 12V46D engines producing 13,860 kilowatts (18,590 hp) each. The fuel consumption of the main engines at full power is 1,377 US gallons (5,210 l; 1,147 imp gal) of fuel oil per engine per hour for the 16-cylinder engines and 1,033 US gallons (3,910 l; 860 imp gal) per engine per hour for the 12-cylinder engines.[7][18] The total output of these prime movers, some 97,020 kilowatts (130,110 hp), is converted to electricity, used in hotel power for operation of the lights, elevators, electronics, galleys, water treatment plant, and all of the other systems used on the operation of the vessel, as well as propulsion. Propulsion is provided by three 20,000-kilowatt (26,800 hp) Azipods, ABB's brand of electric azimuth thrusters. These pods, suspended under the stern, contain electric motors driving 20-foot (6 m) propellers.[7] Because they are rotatable, no rudders are needed to steer the ship. Docking is assisted by four 5,500-kilowatt (7,380 hp) transverse bow thrusters.[1][18]

Additional power comes from solar panels fitted by BAM Energy Group, which provide energy for lighting in the promenade and central park areas. The installation cost US$750,000 and covers 1,950 square metres (21,000 sq ft) on deck 19.[19][20]

The ship carries 18 lifeboats that hold 370 people each, for a total of 6,660 people. Inflatable life rafts provide for additional passengers and crew.[21]

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