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Sea Going Ship Sizes

UPDATE  It is our understanding that the Jahre Viking, the recent claimed largest ship, was now scrapped in 2010.  And they did not even call us?  To be quite honest, we are not sure which the new largest world ship is at this time, but it will likely be a freight carrying ship - such as a tanker or container ship rather than a passenger or military navy vessel.  There is a large container ship out now, the Emma Maersk, which claims to be over 1300 feet long (1302) and 184 wide (beam).  That is huge and would therefore be 150% of the length of the Titanic and twice its width.  The Emma Maersk is owned by the Maersk shipping line, which likely will surprise no one due to the ship's name.  As with many large ships, there is some factual information of it online and also some fantasy.  Some folks claimed it was owned by Walmart and only goes between China and the US.  "No" is the answer to that one.  it may carry Walmart items at times, but Walmart does not own it nor is Walmart its exclusive customer.

The Emma Maersk also seem of interest, at least to me.  It claims to be the world's largest container ship.  How many containers?  it claims 11,000 expecting a certain weight for containers.  However, if the containers are lighter, it could get to 15,000 or at least closer to that.  Some online argue one number 11,000 and some the other 15,000.  But both are right. It could do 15,000 or close to it by volume.  But if the containers are too heavy, then it dare not and would be more like 11,000.

Also note:  The information below was the best information on ships that we could find.  We will agree that the weights given are often more of a volume measurement in many cases.  But then again, remember it is quite hard to weigh one of these huge ships on a bathroom scale.  We have noticed industry often gives in and just uses a measurement that is really volume, that of course would guess at a certain density.  While that will be inaccurate it likely beats doing nothing.   It would seem to me, an engineer, that the right thing to do would be to measure is volume below the water line and see how much water is displaced.  There should be a good way of getting to the weight since we know water weighs just over 8 pounds a gallon.  But we do not often see that information given.  So, unless some of these standards change and people publish good numbers for weight, we will publish what we have.  Weight is actually the real issue in some cases.  Some of today's cruise ships are not much longer than the Titanic.  However, they often wider and much heavier.  The Titanic at 92 feet wide (beam) was actually a fairly "svelt"  narrow ship by some of today's standards.

The Tiny Titanic

We have often heard that the Titanic was the largest sea going ship. That was definitely true - in 1912.  However, since that time other ships have been built that are larger and even dwarf the Titanic.   The Queen Mary 1, for example, was about 136 feet longer and weighed almost twice as much.  Modern US aircraft carriers also weigh about twice as much as the Titanic did.  The Queen Mary 2 and several cruise ships weigh even more, and are more than three times the weight of the Titanic.

Large tanker ships of today are even bigger.  The largest ship afloat today is a tanker, and it is called the "Jahre Viking".  It is almost twice as long as the Titanic was and would probably weigh more than 12 times the Titanic when both were filled.  A still larger vessel, called "Freedom" is being planned.  This vessel would make all of the other ships, including the Jahre Viking, look tiny by comparison.

Some specifications below - from an amount of web research on ship sizes:

(please note that all specifications here should be considered approximate - and were taken simply from the best data I could find on each subject)

Passenger and Military Type Ships

Tanker Ship Classifications

Specific Tanker plus Very Large Ships

* The Jahre Viking was originally called the "Seawise Giant" as it left Japan shipyards.  It is currently the world's largest ship

Note:  the proposed "Freedom" ship is not a tanker, but is more of a floating city.

Some Large Ship Facts: (some of this information from below cited web references)

* Crews on large tankers use bicycles to move about on the ship

* The holds of the Jahre Viking could swallow St. Paul's Cathedral four times over

* Some Large tankers are so long, they need to take the earth's coriolis force into account for navigation

* Some large tankers weigh so much that they cannot go through the Panama Canal, the Suez Canal and cannot even dock in many of the world sea ports

* If the Empire State building were to be placed on its side, the Jahre Viking would be longer by 253 feet

* If the Eiffel Tower were to be placed on its side, it would fit inside the Jahre Viking

* The Jahre Viking cannot travel through the English Channel since its turning capability is not good enough for the narrow channel

* the Jahre Viking, when called the Seawise Giant, was sunk by Iraqi Jets using exocet missiles in 1986, but has since been restored

* The Titanic, the Queen Mary, The USS Nimitz and the Jahre Viking could fit inside the proposed ship "Freedom"

Some References for some of the above data:

Royal Caribbean Ultra Voyager, Planned for 2006
http://cruises.about.com/cs/cruisenews/a/rci_ultravoyage.htm

Queen Mary 2, New in 2004
http://www.cruiseweb.com/CUNARD-QUEEN-MARY-2.HTM

Supertankers and Coriolis Force:
http://www.wcsscience.com/supertanker/page.html

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