Ship Name Size in Gross Tons* Entered Service** Class***
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* Gross Tonnage is a measure of the ship's revenue producing volume. Over 100,000 gross tons is a very big ship.
** The date indicates the date the ship entered service. The ship may have been renamed and/or refurbished
subsequent to that date.
*** Class relates to the design of the ship with the name of the class usually being taken from the first ship built from
that design. If one ship is listed as being in the same class as another, it indicates that those ships were built from the
same design. If no class is listed, the ship is the only ship of that design in the line's fleet.
Cruise Line Fleet Guide - - P&O Cruises