How can the speed of the Chinese coast guard ship not be as fast as the Japanese ship 23 knots, and

This is a tactical requirement, the coast guard ship belongs to the maritime surveillance department, and is not the army, so there is no special requirement for speed, but it requires a long range and good stability. Because considering the need for patrolling, it is necessary to sail over a wide range and at the same time fight all kinds of bad weather.

So it's not about poor technology, it's mainly about different needs. At the same time, the patrol ships of China's maritime surveillance are also equipped with ***, so let *** go to "fast patrol". This is even less important for the speed of the vessel.

I said that the two upstairs, the 23 knots mentioned by the landlord is the standard for the speed of warships in the early 20th century, not modern warships!

You are talking about the speed of the Beiyang Fleet, the ships of the Beiyang Fleet were purchased from Western countries in the 80s of the 19th century, and the average speed of ships manufactured by Western countries at that time was knots. Japanese ships were purchased in the 90s of the 19th century, and the technology of Western-made ships has advanced compared to the 80s. In addition, the Beiyang Fleet has never purchased new warships for more than ten years since its establishment, and the old warships are too worn out, the gun emplacements are backward, and the equipment has not been updated, which is also one of the reasons why it lags behind Japan.

This is completely needed, the ocean patrol ship is not **, and it does not need high speed.

I like this style, pretending to be a pig and eating a tiger doesn't seem to be very appropriate!

Oh, the way you look at the problem is misled by the news in our country. And your information is still stuck 3 months or half a year ago.

Because, the surrounding environment of our country is not very good, and the Americans will mess up with whatever they do, so we have always advocated that we should dominate morally.

If you check the news, you will find that a few months ago, we were a maritime surveillance ship on the periphery of the island, and Little Japan was on the inside. Now it's all the other way around.

Also, you rarely see it in the news, Chinese warplanes have been moving around the island, keeping little Japanese warplanes out, and submarines as well. This information is only occasionally spoken in the military to lift the atmosphere.

So, what you said is not quite right.

But one thing is true, China's manufacturing technology is currently not comparable to that of the Japanese! At least in terms of advancement, the conventional performance should be about the same. But in terms of anti-submarine and air supremacy, there should be a big gap!

Supplement: Ships with different functions are equipped with different powers, you look at those smuggling and smuggling, which ship is less than 32 knots!

Ships of different sizes, different functions, and different drafts cannot be compared. The patrol ship is already the concept of a warship, and the cruise design is 24 28 knots, and the cruise design of the maritime surveillance is 18 22 knots at best.

China's shipbuilding technology is certainly incomparable with Japan's, and China's overall industrial capacity is not half a star or a half lower than Japan's. Just look at the world popularity of Sony, Panasonic, and Toyota.

It is due to the different resistance experienced by the two, and the power they have is also different.

The magnitude of the velocity depends on the difference between the internal force and the drag force. Usually.

The output power of a ship's engine is much greater than that of a car.

In the case of a car, the resistance to overcome when driving on the road includes the friction between the ground and the tires (rolling friction) and the air resistance caused by the action of the body with the air when the vehicle body moves.

For the ship, it needs to overcome the fluid resistance brought by the surrounding water body and the air resistance caused by the action of the air during movement, because the density of water is much greater than the density of air, the size of the ship and the wet part in the water is much larger than that of the car, so the corresponding fluid resistance far exceeds the friction and air resistance of the car.

Although the power of the ship is enormous, it is more enormous than the fluid resistance, and in a warship it can only increase the speed of the ship to 30 40 knots, that is, m s. And the average car can reach a speed of 60 kilometers per hour.

From this, it can be concluded that the speed of the vehicle is greater than the speed of the ship.

1. Is it easier to run on the ground or swim in the water? Of course, running is easier, but Bi version actually has a lot of resistance in the water.

2. Chinese destroyers, frigates and aircraft carriers (Varyag) basically exceed the maximum speed of 30 knots, and nuclear-powered submarines are also around 30 knots (the old ones don't seem to be able to reach it). Amphibious landing ships (amphibious assault ships and dock boards), merchant ships, and conventionally powered submarines all have a speed of only about 20 knots. The situation is the same in other countries, not necessarily the smaller the tonnage, the greater the speed, the main thing is to depend on the use.

The main impact on the speed of the ship is related to the thrust and drag of the engine. The drag is related to tonnage, hull shape design, draft, hull interior space, power type, and so on. Therefore, in the case of a certain engine, the relationship between speed and hull size is not linear.

In terms of power, the steam turbine has the largest power, which is generally used by medium-sized (like Varyag) or large aircraft carriers (including nuclear-powered aircraft carriers, which only use nuclear reactors to drive steam turbines), and the maximum speed can be guaranteed. However, the acceleration and deceleration performance of steam turbines is relatively poor, so there are more gas turbines used between 5,000 tons and less than 30,000 tons. However, the cost of gas turbines is relatively high, the process is complex, and warships of 5,000 tons or more or do not need to sail at high speed mostly use diesel engines.

First, when a car is driving on the road, the resistance it encounters comes from the friction between the ground and the air. Boat in the water traveling version.

The resistance is the friction of the water, and the water is much denser than the air.

Second, fishery administration boats are not used for war, and there is no need to drive fast, otherwise it will be a waste of fuel. Just as the police don't use a supercar like a Ferrari as a police car, the fishery boat belongs to law enforcement, and the budget is limited after all.

Thirdly, the aircraft carriers of the United States are **, ** in order to fight a war, of course, they have to run fast. The cost of the aircraft carrier is paid directly by the state, and the cost can be disregarded. The cost of fishery administration vessels is mainly from the fishery administration department.

Fourth, aircraft carriers are very large, and even if they can reach a maximum speed of more than 30 knots, they rarely drive at such a high speed. It's like a Ferrari sports car can reach a maximum speed of more than 300 kilometers per hour, but few people can drive at such a high speed. Full speed ahead only when the mission requires it.

The boat is propellered to propel the water forward. And the resistance of water is great. The car relies on the engine to drive the wheels, and the resistance to move forward is small, of course, fast. American technology is good. Our country is not at all comparable to others.

What about you with mine missiles, why are you chasing her, isn't it better to use missiles, just blow him up, the speed of the hovercraft is faster than the car Nuclear**,

An airplane is so big, a car is so small, can a car outrun an airplane?

As early as the 16th century, sea navigation was quite developed, but there were no clocks and no voyage recorders, so it was difficult to determine the speed of a ship with certainty. However, a clever sailor came up with a clever trick to throw a float with a rope towed to the surface of the sea while the ship was sailing, and then calculate the speed of the ship according to the length of the rope pulled out in a certain amount of time. At that time, quicksand timers were still used.

In order to calculate the speed of the ship more accurately, sometimes the rope released is very long, so many knots are tied at the equal distance of the rope, so that the whole speed rope is divided into several sections, as long as the number of sections of the rope is pulled in the same unit time, the corresponding speed is naturally measured. As a result, the "knot" became the unit of measurement for the speed of the sea vessel; Correspondingly, the unit of measurement for the speed of sea currents, sea winds, torpedoes and other underwater weapons is also commonly used in the world.

The code name of "knot" is the prefix of "knot", which is represented by "kn". 1 knot is equal to 1 nautical mile per hour, which is kilometers (kilometers) traveled per hour. The unit of measurement of short distances at sea is "chain", 1 chain is equal to 1 10 nautical miles, and the code name is the prefix of "cable" in English, using "cab".

A nautical mile is a unit of length in the sea. It originally referred to the length of 1 minute of latitude on the meridian of the earth, and because the earth is slightly ellipsoidal, the radian of 1 minute at different latitudes is slightly different. At the equator, 1 nautical mile is equal to about 1,843 meters; At latitude 45° it is about equal to meters, and the poles are about equal to meters.

The 1929 International Conference on Hydrography adopted the use of 1 point with an average length of 1852 meters as 1 nautical mile; In 1948, the International Conference on the Safety of Life recognized that 1,852 meters or feet was 1 nautical mile, so 1,852 meters was used as the standard nautical mile length internationally. China recognizes this criterion, which is indicated by the code "M".

In addition, the length unit of the mark for the segmentation of the anchor chain on ships is also used in the form of "knots". Generally, the length of the anchor chain is 1 knot; The sign of use of Chinese ships is 2o meters for 1 section.

The speedometer of modern sea vessels has been very advanced, and some can be digitally displayed at any time, and the "rope throwing knot" has long become history, but the "knot" is still used as a speed unit of sea vessels.

1 knot is a kilometer-hour = 1 knot.

A knot is a unit of velocity for a ship. One section is one nautical mile per hour, and one nautical mile is 1,852 meters. In fact, 23 knots is not fast, but the fishery administration ship requires a long time of cruising, so it requires continuous force, not speed, and 23 knots is still very powerful.

However, compared to the speed of **30 to 35, it is still not comparable, after all, it is **official ship, not **.

At present, the speed of the fastest ship is not easy to answer, the maximum speed of China's ocean-going ships can reach 25 26 knots, ** category: aircraft carrier speed 35 40 knots, cruiser speed 30 38, destroyer speed 30 38 knots, frigate speed 30 35 knots, battleship speed 30 35. In addition, some speedboats can reach speeds of more than 45 knots.

The expulsion in the peak battleship can be stacked to more than 80 knots at the earliest.

60 knots in the case of hovercraft up to 66 knots.

The number of miles a ship has traveled per unit of time. Measured in nautical mile hours, referred to as knots. It is one of the most important tactical-technical properties of a ship.

The speed of surface ships is usually measured by a log, which is divided into maximum speed, full speed, cruising speed, economic speed and minimum speed. At present, the speed of large ships such as aircraft carriers and missile destroyers is about 30 knots, while the speed of small ships such as missile boats and torpedo boats is mostly 40 to 60 knots.

The short nautical mile is at the equator, 1 nautical mile = 1843 meters.

The longest nautical mile is at the North and South Poles, 1 nautical mile = 1862 meters.

The average radius of the Earth is 6,371,300m, and 1 nautical mile calculated from the average radius of the Earth is:

1 nautical mile = 2 * * 6371300 360 60 =

On 8 August 1978, Ken Wobey and the Spirit of Australia returned to the surface. This time, Ken Wobey finally crossed that insurmountable obstacle and set a new water world record with a dizzying speed of 511 kilometers per hour.

China has a ground-effect aircraft with a speed of 210 km/h.

A company in Guangzhou produces a catamaran boat that can reach 60 knots and about 110 kilometers.

1 The world's fastest ship was named Earthrace.

EarthRace is a 78-foot boat that runs on biofuels that are completely replaceable.

The ship's engine power is supplied entirely by biodiesel fuel.

Known as the world's fastest eco-ship, the Earth Race costs $2.4 million and incorporates a number of high-tech technologies. The Earth Race is about a meter long and resembles a swan with wings ready to fly. The hull is protected by three layers of hull and contains two advanced engines, which can reach a top speed of 40 knots per hour (about 74 km/h), and will not slow down even when sailing in high waves.

You night cats, huh? So late to come home.

1 knot = 1 nautical mile hour = kilometers per hour.

knot, unit symbol kn, is a unit of velocity dedicated to navigation, which is later extended to aviation, and is equivalent to the number of nautical miles per hour traveled by a ship or aircraft.

According to the size, the speed can be divided into maximum speed, full speed, cruising speed, etc., which are introduced as follows:

1. Maximum speed: refers to the speed reached by the main power device when it is running at maximum power;

2. Full speed: refers to the speed reached by the main power device when it runs at the rated total power;

3. Cruising speed: It is the speed commonly used when cruising ships, and usually ships of the same type stipulate a main engine speed as cruising speed;

4. Economic speed: refers to the speed with the lowest cost determined according to factors such as ship transportation requirements and operating expenses;

5. Minimum speed: refers to the minimum speed at which the rudder can play a maneuvering role.

1 knot = 1 nautical mile hour = kilometers per hour.

At sea, in the past, it was usually a large man holding a rope with his hands stretched out. It's about a meter, and it's called a tun. Later, it was accurate to a meter, and a thousand xun was a nautical mile.

One section is one nautical mile per hour. Usually sailing ships 7-8 knots. Freighters 14-18 knots, **25-32 knots, speedboats 40-50 knots, hovercraft'More than 50 knots on hydrofoils.