What does the chord number of a naval ship mean?

China navy ships will be given a three-digit (or two-digit) ship number when receiving or building. According to the regulations, in the three-digit ship number,

1 Start with a destroyer;

No.2 and No.3 started from conventional submarines;

No.4 was originally a nuclear submarine;

5 Start with a frigate;

No.6 and No.7 started with submarines, escort ships and missile boats;

8 at the beginning are support warships such as minesweepers and supply ships;

At the beginning of 9 is a landing ship.

Such as No.588 escort ship, "X6 15" integrated supply ship and "J50" ocean salvage ship.

Military ships are combat ships and special ships listed in the navy's establishment, which are used to complete combat tasks and support tasks. Modern warships are generally equipped with missiles, artillery, torpedoes, mines, anti-submarine weapons and other weapons, and some are also equipped with combat aircraft and helicopters.

Warships generally include aircraft carriers, destroyers, battleships, cruisers, frigates and supply ships.

Chord number: each ship has its own number, just like our ID number, and its painting position is generally on the side of the ship, so it is also called chord number. You can tell what kind of ship it is by the horn.

Destroyer (English: destroyer) is a multi-purpose warship, which has been one of the important naval vessels from 65438 to 2009 since the 1990s. Modern destroyers are equipped with air defense, anti-submarine, sea and other weapons. They can not only undertake offensive assault missions in naval ship formations, but also undertake air defense and anti-submarine escort missions in combat formations. They can also serve as support forces in landing and anti-landing operations, and serve as patrol, alert and guard missions.

It is one of the medium-sized warships with strong assault force in the naval fleet. Its main duty is to escort, and at the same time, it has the tasks of reconnaissance patrol alert, mine laying and attacking shore targets. A wide range of operational functions make destroyers the most versatile modern naval vessels. Representative figures: Zumwalt class destroyer and Type 055 destroyer.

Nuclear submarine is a type of submarine, which refers to a submarine designed with nuclear reactor as its power source. Due to the production and operation cost of this submarine, plus the volume and weight of related equipment, only military submarines use this power source. The submarine's underwater endurance can reach 200,000 nautical miles and its self-sustaining power can reach 60-90 days. The world's first nuclear submarine was the American Nautilus, which began its first trial on June 24th, 1954, announcing the birth of nuclear-powered submarine.

At present, there are six countries in the world that openly claim to have nuclear submarines, namely the United States, Russia, Britain, France, China and India (India's nuclear submarine destroyers are under construction). Among them, the United States and Russia have the most nuclear submarines. The appearance of nuclear submarines and the application of nuclear strategic missiles have brought the development of submarines into a new stage. The nuclear submarine equipped with nuclear strategic missiles is an underwater deterrent nuclear force.

Landing ship is the most practical weapon in modern military landing at sea, also known as amphibious ship. It is a ship specially made for transporting landing soldiers, their weapons, equipment and materials, and can provide take-off and landing of unmanned carrier aircraft.