AiKop | See the 72 changes of modern ships

Do you know the origin of the name "cruise ship"?

Do you know what kind of ship is a "courier" at sea?

Do you know how offshore "engineers" work?

In this issue, the editor will take you to see a modern ship, which will definitely open your eyes!

Let's go!

I want to take you to romantic Türkiye

Then we went to Tokyo and Paris together

I really like Miami.

and Los Angeles with black people

Actually, dear, you don't have to be too surprised

Let's go to the bustling Shanghai and Beijing together

And Dali in Yunnan preserves the memories

This is what makes sense

After hearing this song, do you also feel excited?

Then follow me on board the cruise ship.

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The past and present of cruise ships

Cruise

In the early days of postal services, intercontinental mail services relied on mail ships to deliver letters and parcels from one shore to the other. These British ships often had to fly the signal flag of the British Royal Mail.

After 1850, the British Royal Mail allowed private shipping companies to help them carry letters and parcels on a contract basis. This change transformed some passenger ocean-going ships that were originally owned by passenger shipping companies into ocean-going mail ships that flew signal flags and carried passengers as well as mail and parcels. The term ocean liner was born.

Cruise

However, due to the emergence of jet airliners, ocean liners gradually lost their passenger and cargo carrying functions and competitiveness, and the role of ocean liners also evolved from cruise ships to cruise ships only for pleasure.

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The title of “sea courier” is indeed well deserved!

Since general cargo ships call at many ports and load and unload cargo frequently, they must follow a certain order when allocating cargo to each hold. This is a very important question.

The first order is "last port first, first port second, bottom hold first, second hold second". This is actually the same as the common courier loading of cargo trucks. The last delivered goods must be put into the truck first, and the first delivered goods must be put in last.

The second order is "special first, general later". For some special cargoes, such as dangerous goods, refrigerated goods, heavy cargoes, etc., first choose the appropriate space according to their special requirements and concentrate them as reasonably as possible.

The third order is "large tickets first, then small orders", which is easy to understand. It means that large quantities of tickets are concentrated in one or two cabins to avoid being split up in the end because no suitable concentrated cabins can be found.

In addition to considering the order of cargo stowage, the configuration of prohibited cargoes must also be considered. Prohibited cargoes refer to cargoes that conflict with each other due to physical or chemical properties or that are not suitable for mixing in the same cargo hold due to special cargo requirements.

For example, spices must not be loaded in the same cabin with goods such as mothballs and rubber, as this will cause odor contamination; cotton, tea, and cigarettes are goods that are sensitive to moisture, and must not be loaded adjacent to goods such as fruits and grains that emit moisture, to prevent the goods from becoming moldy and spoiling after being exposed to moisture; beef, mutton, and pork are allowed to be loaded together.

In addition to these precautions, there is another key part of cargo placement, which is balance. The cargo on both sides must be kept equal to prevent tipping.

Engineering vessels are often used for dredging waterways, rescue and salvage, offshore construction, water conservancy construction, port operations and ship repair.

Salvage Ship

Salvage vessels are used specifically to recover sunken ships and other objects from the water.

Icebreaker

Icebreakers are used to open channels in icy waters and rescue ships trapped in ice.

Cable laying ship

Cable-laying vessels are specially used for laying submarine cables.

Floating crane

Also known as a crane ship crane, it is mainly used for loading and unloading large cargoes at ports.

Fire Boat

Fireboats are specially designed to extinguish fires on operating ships, oil fields, and on or near water buildings.

Teaching ship

Teaching ships are used for teaching and practice in marine and maritime professional colleges. This ship is the teaching ship used by Shanghai Maritime University.

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If you want to see more ships, come to the China Maritime Museum~