MS Navigator of the Seas

Navigator of the Seas at the port of Barcelona in Spain.
Career
Name:	Navigator of the Seas
Owner:	Royal Caribbean International
Port of registry:	Nassau
In service:	2002-present
Identification:	Call sign: C6FU4 DNV ID: 22759 IMO number: 9227508 MMSI no.: 311478000
Status:	In Active Service as of 2012
Notes:
General characteristics
Class and type:	DNV: 1A1 Passenger Ship RP LCS-SID BIS
Tonnage:	138,279 gross tonnage
Length:	311.1 m (1,021 ft)
Beam:	49.1 m (161 ft)
Decks:	15
Speed:	22 kn (41 km/h; 25 mph)
Capacity:	3,114 passengers
Crew:	1213 crew
Notes:

MS Navigator of the Seas is fourth out of Royal Caribbean International's five Voyager-class cruise ships. She was once one of the largest in the fleet and still ranks among the largest passenger ships in the world.

Constructed at Aker Finnyards in Turku, Finland, the ship measures 138,279 gross tons and can carry 3,114 passengers, plus crew. Her length is 1,020 feet and with a beam of 157.5 feet.

As of April 2007, she began departing exclusively from Southampton, UK, on cruises throughout Europe and the Mediterranean. Currently, the Navigator spends winters sailing four and five night cruises from Florida, and spends the summers sailing from Civitavecchia, Italy to the Eastern Mediterranean.

Of further note is that Navigator is the first of the second generation of Voyager-class vessels. She is noted different from her sisters by the set up of the rear buffet (Windjammer) which extends further aft, and also includes "Jade", an Asian fusion buffet. She is also more obviously different in that she has glass balconies which all the 1st generation sisters lack. She is truly identical only to the Mariner of the Seas, which shares her same design changes.

The ship contains over US $ 3 Million dollars in art displayed in stairwells and public areas. Navigators main centrium sculpture spans over 7 stores and is based on the bubbles a scuba diver makes when swimming under water. Her promenade also changes color based on time of day as well as with events occuring on the ship. She is also one of the first of her sisters to lack the actual Aquarium in the schooner bar, instead a piano and more seating is provided, this is suspected to be due to the extreme difficulty it takes to maintain a saltwater aquarium at sea. This change is also on her identical sister Mariner of the Seas.

Technical

Main propulsion

The ship has a diesel-electric powertrain using three Azipod azimuth thrusters. Each propeller is driven by a double wound 3-phase synchronous motor with 4-bladed fixed-pitch bronze propellers. The motors are mounted outside the hull directly on the propeller shaft inside the pod. The three propellers are arranged so that the center propeller is a pushing on–azimuthing Fixipod-type and the two wing ones are of pulling-azimuthing–type steering propellers.

• Motors: three 14,000 kW (18,800 hp) at 145 rpm each
  • Total: 42,000 kW (56,000 hp)
• Stabilizers: 4 Brown Brothers Stabilizer Fins
• Bow Thrusters: 4 KAMEWA 3000 kW each
• Maximum speed: 24 knots (44 km/h)
• Fuel consumption at full speed: 10,637 kg/h (2,871 gal/h)

Generators

Six Wärtsilä Diesel 12V46 generators producing 12,600 kilowatts each for a total of 75,000 kilowatts or 103,000 bhp. All gensets are monitored by the Wärtsilä CBM (Condition Based Maintenance) group by using Wärtsilä automatic data sending concept.

Fresh water production

The ship has three ways in which to produce fresh water—Two Alfa Laval Desalt Flash and Energy Recovery Evaporators and one Pall Rochem seawater desalination unit (reverse osmosis) "Rosmarin" 80404-50/300-A-SW

• Steam evaporator: 230,000 gallons (900 metric tons) per day
• Seawater desalination unit (reverse osmosis): 80,000 gal (300 t) per day
  • Total freshwater production: 540,000 gal (2,100 t) per day
• Water consumption: 58 U.S. gallons (220 liters) per person per day
• Ice cube production: 65,000 lb (29,000 kg) per day

Navigator of the Seas at Cadiz, Spain, 2007.	Navigator of the Seas at Ajaccio, Corsica, 2009.	Navigator of The Seas at Linnahall, Estonia, 2007.