In 3 days, almost the entire Dinghai Navy has acted, the shipyard is nervously packing that ship, 3 days of time, it is still a little simple, the sail is ready-made, and the light industry is always the easiest to develop, even under the premise that all kinds of machinery and equipment are not sound, manual work alone can also produce a huge quantity.

Now the canvas factory has enough stock for 20 ships to hang sails in all aspects, and all aspects have been treated, such as painting, with some anti-corrosion tung oil to coat, which may make these ships more flammable, but waterproof, quite useful for daily life.

Ballistae are ready-made, and although there is no large-scale weaponry in the Dinghai Navy, there is a steel plant as the foundation, and the progress of weaponry is very fast.

The original god arm bow of the Northern Song Dynasty, the bow arm is wooden, this kind of thing, compared to the bow, is much simpler, as long as the overall strength is enough, elasticity or something, to meet the basic standards can be, because it will not be deformed, it does not have to be like an ordinary bow and arrow, with a few years, there are a lot of things to build.

On the side of the Dinghai Navy, it was directly replaced by steel with good toughness and elasticity, and the entire bow arm, all the steps, were constructed of steel, and a series of modifications were carried out.

In the 21st century, the most powerful place lies in the subtlety and precision, if you make a single small crossbow, it may not work, but a powerful bed crossbow, it is still possible.

Through the twisting of both ends, the formation of a unique bow arm, and some elastic bow pieces, plus some mechanical guidance, Dinghai's bed crossbow is extremely powerful, as early as last year, has broken through the 70 stone mark, to now, the latest bow, can actually reach 150 stone.

The 150-stone bed crossbow is a very difficult thing to deal with for land, and the simple bow arm is a bow arm forged by direct smelting, with a total weight of more than 600 catties, plus some other ancillary equipment, his total weight exceeds 1500 catties.

With such a weight, ordinary two-wheeled carriages can't pull up, only four-wheeled carriages, not to mention the whole special huge.

But such a thing, put on a ship, is very suitable, let alone 1,500 catties, even if it is 15,000 catties, in front of a ship of more than 200 tons, it is not a big number.

Such a strong bow, if not treated, even if animal power is used, it is difficult to pull it apart, but in the Dinghai, especially on the ship, there are many auxiliary equipment that can be set.

Itself, on this ballista, an eccentric wheel is set, which can save almost 60% of the force, and then, under the special bow opener, through at least 6 sets of pulleys, as well as numerous gears and other mechanical transmission devices, finally, two adult men, can easily open the bow.

In the absence of chemical energy such as gunpowder, mechanical energy is a commonly used energy source, without the premise of basic knowledge of mechanics, often a few stones, basically, is the force to pay, at most with the help of equipment, to improve some stability and accuracy.

The power of 150 stones, equivalent to 15,000 catties, this power, acting on the heaviest crossbow arrows of only 20 catties, the final power is amazing.

This kind of ballista, their range will exceed 3000 steps, within 1800 steps, have a huge lethality, which has been verified by the test site.

Through the fixture, as well as the precision sight, a skilled archer, within 1000 steps, can achieve accurate shooting, after all, when the speed reaches a certain level, in a considerable distance, it should be a straight line distance, speed plus weight, is the power of the crossbow arrow.

In fact, it was this ballista that made the nascent Dinghai relatively calm when facing the first battle at sea.

Looking at the dock, this terrible battleship that was slowly being equipped and formed, Zhao Xin's expression was calm, this was a perfect weapon, but it was a step slower in the development of artillery.

In fact, with the current technical level of the navy, there is no problem in making some cannons, but Zhao Xin is unwilling.

To make cannons, when technology was not developed, the best was copper.

Copper is one of the earliest metals used in the human world, it is easy to smelt, and there are natural metals, so there was a use of copper before 8000 AD.

Similarly, compared with less reliable iron, copper is much stronger than iron in all aspects of performance.

However, one of the important problems with the copper cannon is that it is expensive, and this older metal has a very low content in the whole of nature, and even less natural ones, and even when it has not become currency, its price is very high.

China is not only the peak of copper smelting, but also the earliest use of copper as the mainstream currency of an ancient civilization, from the Warring States period before the various knife coins, to the Qin after the unification of the Qin half two coins, and then to the Han Dynasty five baht money, the prototype of the square hole money, has become the mainstream of the world, Kong Fang brother is also synonymous with money.

Not to mention the value of the money itself, even if it is the value of copper, it is quite high, the price of about 280 wen per catty, according to the weight of a cannon of 10,000 catties, the price of a simple cannon is as high as 2800 yuan.

This is for the price of copper itself, copper is different from steel, there is no large-scale development, reduce costs.

This is unacceptable to Zhao Xin, as far as the current sailing ship is concerned, 36 cannons are about 110,000 yuan, if there is no cheaper iron cannon, this may become the only choice, but now it is different.

It is not easy to start an iron cannon from scratch, even if it has the current scientific and technological level of the navy, even if there is a steel mill and a card system, you can get a suitable formula relatively quickly, but there is still a long way to go from steel to artillery.

The weight of a steel cannon is far lighter than that of copper, and coupled with the low price of the navy, it is possible to reduce it at least a few hundred times.

When a gun, the price is reduced to less than 20 guan, this is a more suitable price, even if it is a battleship with 144 guns, the price of the simple gun itself, that is, about 3000 guan, and before, there is a huge difference between hundreds of thousands of guan.

Now, the research of the artillery of the Dinghai Navy has made some progress, and the artillery that can fire a few shells has been manufactured, but the chemical energy of gunpowder has excellent performance, especially Zhao Xin's transformation of black powder, in a sense, the power has been more powerful than the gunpowder of the Ming Dynasty.

This powerful gunpowder has higher requirements for the strength of the barrel, and this ability to explode wildly can push the shell to rush to the target with a faster initial velocity, so that the greater the power of the gunpowder, the greater the damage to the barrel.

There is no cannon barrel, it can never be worn, gunpowder brings destructive power, and the destructive force generated in an instant will gradually destroy the metal, even how hard the metal is, it will be under the constant and repeated impact, and the final breakage, lose its own strength, and finally be destroyed.

This requires constant research, and even improving the formula, of course, this also has something to do with Zhao Xin's request, Zhao Xin does not want the kind of bloated, iron pimple-like artillery, and similarly, the internal caliber is also smaller.

This is a stalemate, and before that, the only weapons that can be equipped for sailing ships are ballistas.

However, this kind of ballista that has been strengthened by the Dinghai Navy is not a simple bed crossbow that can be compared, it is a real cannon, if you want to exert a huge power of 150 stones, ordinary crossbow arrows are not good, you must thicken, and even crossbow arrows built of steel, when this is shot out through accurate aiming, it may not be much worse than the early artillery.

A very good ship, especially a sailing ship that was easy to maneuver, and a ship with 36 ballistas installed, their combat effectiveness was quite amazing.

Perhaps on land, a heavy cavalry, on the frontal battlefield, at most, is to deal with two or three heavy infantry, to a certain extent, the advanced nature of weapons, can not change the advantage, but at sea, one ship, can deal with ten, or even more ships.

This is the result of countless water battles in later generations, which have been verified, but in the water battles of this era, it is very rare, some vehicles and ships, all for the purpose of fighting, in the face of a ship more than ten times larger than him, he will not be afraid, in one-on-one, he may be defeated.

But when one side has one, one side has two, three or four, or even more, this is different, a little careless, maybe, approached by the other party, what to do.

The speed of the car and ship, on the river surface with less wind and waves, can be exerted, and on the sea, it will be discounted, and when the wind and waves are large, even the Venetian gunboat, a huge wooden pulp ship, can not move and continue, let alone the current, simply modified Chinese-style sailing ship.

This ship with high hopes, this is the main battleship, and there are not many soldiers on the sailing ship, because a 300-ton ship can accommodate about 300 people at most, plus some other circumstances, it is more than 200 people at most.

36 crossbows, it will occupy about 108 people, 3 people, is already the lowest crossbow, this is also the result of the modification of the navy, if you change to the previous bed crossbow, a bed crossbow may need more than a dozen people.

The rest, the necessary personnel to operate the ship, there are almost more than 200 people, at most thirty or forty infantry, still wearing foot armor, they will become the ultimate force, but not the main force in the broadside battle.

For this aspect, Zhao Xin knows best, after all, the power of a real gunboat still adds the power of many special things, which is completely different from the ordinary.

36 ballistas, the range of at least more than 1,800 steps, does not sound very high, but in naval battles, 1,800 steps, almost 1,200 meters, in this ordinary ship speed of less than 10 kilometers, from range to contact, it takes at least 10 minutes.

But whoever fights a naval battle, watching you approach, the speed of the ship is the key, and it will approach under the premise of the right wind, and then rely on the relationship that the sail is faster than that of an ordinary ship, and maintain a relative distance.

This point, it is not easy to grasp, keep a relative distance, and then use the distance to fly a kite, which is the most high-end tactics in the era of sail warships, as long as the range of the artillery exceeds the range of the opponent's artillery, you can kill the opponent without damage.

The current Dinghai Navy is far from reaching a very proficient level, not to mention the capital ship this time, which is completely constructed with sail warships, and the operation of many sails in the middle is very complicated, and if you want to give full play to its full effect, it may take several months of training.

Even now, it has been built for more than half a month, and it is very difficult to train experimental ships at sea every day, and it is very difficult to operate it and fully exert their power.

This time, Zhang Zhonghe, who was lucky to come back, was also very lucky to be able to come back, if at that time, the wind had a little problem, and the pirates' fleet was forced to a certain distance, it would be over, and they could only fight.

A ship with experiments as the main body, most of the middle are ordinary sailors, real professional soldiers, only 10 people, a little bit caught up by pirates, and the final result, almost without exception, will be killed by the other party.

Those soldiers may have some lethality to the pirates, but they are no match for two fists and four hands, and they can play a far less role on a ship, in a ship with wind and waves, than on land.

It may be that after causing more than ten or twenty casualties on the other side, they were completely killed by the other side, and when there is no means of long-range communication, the Ding Navy will not even know how these people died

Fortunately, now they have come back and reported on the situation, which is very important, especially for the Ding Navy.

For this pirate, everyone's opinions are almost unanimous in agree, this pirate's lair is too close to them, at such a distance, if you come over, it will be so troublesome, but it will be a big deal.

The 13 ships, except for the main one, are basically troop carriers, each ship has an average of 2 ballistas, and more for self-protection, each of which is almost equipped with 50 hoplites and 50 longbowmen.

In other words, this time it was 600 heavy armor and 600 longbows, which were a considerable part of the regular strength of the entire Dinghai Navy.

In order to avoid being taken seriously by others, the Dinghai Navy has not increased much in terms of conventional strength, with a total of only about 4,000 people and 1,200 people, which has already accounted for more than a quarter.

1,200 people, above a large-scale war, is nothing, but these troops, let alone a pirate lair, even if it is an elite Liao cavalry, can confront about 2,000 head-on, as long as they successfully reach the surroundings, and the pirates do not fight back, it is almost a sure result.

Of course, the expectation is good, after all, the pirates have met with the ships of the Dinghai Navy, I don't know if they are vigilant, and everything on this island is unknown, whether they can avoid the detection of the other party, land on the island, and kill the other party with a military formation, there is an unknown.

However, after several preparations, whether it is a land battle or a water battle, they are all quite comprehensive, and in Zhao Xin's opinion, this confidence is still quite sufficient.