What is the Froude number of the ship according to the purpose, material, navigation state, navigation area, power plant and captain?

According to the purpose: military ships and civilian ships.

According to the materials, there are steel boats, aluminum alloy boats, wooden boats, steel mesh cement boats, glass fiber reinforced plastic boats, rubber boats, mixed structure boats and so on.

Classification by navigation: seagoing ships and inland river ships.

According to the navigation state, it is divided into: drainage boat, planing boat, hydrofoil boat and hovercraft.

According to the power plant, it is divided into steam engine ship, diesel engine ship, steam turbine ship, nuclear power ship, manpower ship and wind power ship.

According to captain Fu Rude, it is divided into low-speed ships, medium-speed ships and high-speed ships.

Ship is a kind of man-made means of transportation that mainly travels in geographical waters. In addition, civilian ships are generally called ships, military ships are called ships, and small ships are called ships or boats, collectively referred to as ships or boats.

Ship related introduction:

A ship or ship refers to a vehicle that uses the buoyancy of water and relies on the power of manpower, sails and engines (such as steam engines, gas turbines, diesel engines and nuclear power plants) to pull, pull, push, row or push propellers and high-pressure nozzles to move on the water.

In addition, civilian ships are usually called ships (junk in ancient times), ships, engines and ships, military ships are called ships (junk in ancient times) and warships, and small ships are called ships, junk, rafts or boats, which are collectively called ships or boats.

Ships are developed with the development of human beings. Whether in wartime or in peacetime, there are ships. Millions of fishermen around the world use fishing boats to catch fish. Wartime naval warfare and maritime military supply are all related to ships.

In 2007, about 35,000 merchant ships carried 7.4 million tons of cargo. Up to 20 1 1 year, about 104304 ships in the world have obtained the IMO number issued by the IMO.

Historically, ships have played an important role in geographical exploration and scientific and technological development. Just like Zheng He of the Ming Dynasty in China, he spread the compass and gunpowder to other areas.

Ships can be used for colonial and slave trade purposes, as well as for science, culture and humanitarianism. The Columbus exchange between America and Europe was one of the main reasons for the world population growth at that time. Shipping also makes the world economy an energy-intensive economy.