Rongling City is just an ordinary small county town, but the city has been fortified by Liu Pan, and the city walls are higher and there are more female walls.

Like many ordinary county seats, Rongling City is less than ten miles around - one mile in the Han Dynasty is about 400 meters, that is, the circumference is less than 4,000 meters.

However, small also has small benefits, and the siege of a small city and the siege of a large city are also completely two concepts.

In a small city like Rongling, no matter which side the enemy comes from, the guards will stand on the tower in the middle section, and the range of about one mile to the left and right, and there is a condescending perspective, so it is easy to take care of the whole field.

Replaced by Luoyang, Chang'an, sixty or seventy miles back in a week, as a defender, once the prediction is wrong, although it is to defend the city wall, but the enemy's key offensive section, may be several miles away from him, one did not take care of, the enemy first boarded the troops to sweep out the safety zone, stand firm, and they don't know yet.

In contrast, this situation does not exist in Rongling City, standing on the city tower, the situation of a city wall can basically be taken care of.

And Chen Gong didn't intend to play tricks, and directly put twelve cloud ladders in front of the battle, eight in front and four behind, and slowly pressed towards the south wall......

Some were pushed by shield-raising infantry, others ...... Is it moving slowly?

I saw that at this time, there were eight "ladders" in the General's Mansion, which were more like "covered bridges" than ladders, that is, bridges covered by a shed roof.

Similar to a boarding bridge in an airport, it can be moved to connect different gates to aircraft doors.

Of course, it's just a "half bridge", enter from the ground entrance, run up the stairs from the "corridor", and the exit is at the top of more than ten meters high, if you push it to the side of the city wall, you can do a good job and build it on the female wall of the city wall!

Compared with ordinary ladders, the volume is "wider" because it is a staircase that has been hooked twice, rather than a ladder that is simply built diagonally.

It's still steep, but at least the warrior can fight back with a shield or even a knife when climbing the ladder......

The other four are more regular, they look boxy, and they are also covered with defensive cowhide on the outside, so you can't see the inside clearly, but you can vaguely see the arrow holes!

If you look at it from perspective, you can see that it is divided into five layers, which are connected by ladders, and there are soldiers at each level, among which the soldiers on the lowest floor are responsible for "riding" the huge "Lu bus".

That's right, it's riding, using everyone's legs to kick the winch and then drive the axles forward, so it looks like a huge "box" is approaching the city wall on its own.

The two different "ladders" also symbolize different siege concepts.

The "boarding bridge" like the ladder, the effect is to create a safer channel to climb the wall, so that the soldiers dare to climb the wall, which is equivalent to building a temporary outer staircase outside the city wall, and there are shelters around and on the roof of the shed.

The latter is an improved version of the "Lv Gongche" - the Lv Gongche is pretended to be the name of Lv Gong, that is, Jiang Ziya, but it is actually a siege equipment only in the Song Dynasty.

In contrast to the ladder, the idea is to build an additional wall outside the city wall......

The top floor of the Lu bus is level with the city wall, and it also has a certain area, once it is connected to the city wall, it is equivalent to forcibly "changing" a piece of city wall occupied by the besieging party.

And before you completely push to the side of the city wall, you can also shoot at the same height as the defenders!

It is equivalent to a combination of a ladder and a well.

The Lu bus in the General's Mansion, because of the addition of pedals and winches, has stronger "power", so it can be built larger and carry more soldiers.

The two types of advanced ladders have their own advantages and disadvantages, the former is a relatively stable passage, but it is easy to be "one-man pass", and the latter is a man-made wall platform, but the supply of soldiers on it is slower.

At the same time, the two also have a common "defect" - complex structure, high requirements for fine workmanship.

It is necessary to have a certain number of commanders and assistance of the engineering corps trained by the Ministry of Civil Affairs to be able to build equipment of this level of complexity, and some of the grassroots "officers" of the engineering corps are not even war generals, but grassroots officials of the Ministry of Civil Affairs who hold official seals!

Relying solely on the "siege equipment construction" technique trained by ordinary armies, even if it is barely able to make a shape, it is likely to be easily damaged due to some detail problems.

At this time, there are eight ladders in front of them, four of which are covered bridge cars, four are Lu public cars, and the four after pressing are covered bridge cars......

Looking at the several behemoths approaching, although the style is very novel, obviously everyone knows that this should be a siege machine similar to a ladder.

It's just that the thick cowhide covered not only looks very stuffy, but also stifles the defenders' desire to release arrows.

Fortunately, it was already October, otherwise it would have been a test for the soldiers inside to withstand the heat and heat.

However, the cowhide mask on the outside is indeed effective in resisting the destruction of arrows......

Although they were panicked, after they really arrived at the land of an arrow, the two sides still shot at each other.

There is a female wall on the defending side, and the "exit" of the cloud ladder of the covered bridge and the top floor of the Lu bus also have baffles.

As for igniting with fire arrows?

It's not that easy, Bai Tu mentioned before when he was developing the dishes, oil refining at this time was not developed, whether it was tung oil or flax oil, it was not so easy to make fire arrows.

Tung oil is a technology that existed during the Warring States period, but tung oil is poisonous, inedible, mainly to make lacquer, waterproof, with the technology of the Han Dynasty, refining tung oil appears thick, it is easy to paste, even lamp oil can not be done, used in the defense of the city, generally to make lubricating oil, poured on the wall, increase the difficulty of the enemy's climbing.

Sesame oil is a raw material crop and technology from the Western Regions in the former Han Dynasty, which can be used as lamp oil, but when defending the city, it is not practical to ignite it directly and pour it down, it is generally boiled and poured down with hot oil, and the effect is better!

Otherwise, the flax oil that is on fire will spread out and quickly extinguish after being poured down, and it will not be as lethal as hot oil...... Don't forget that you can also add "golden juice" to the hot oil.

As for why not hot water?

Try it with the water heater at home and know that when you hold the nozzle with your hand, the hot water is already moderate or even cool when it falls on the surface of your feet - when the water falls, the heat dissipation is very fast, and the waste boils hard, and the effective range is one or two meters? Generally, you need to use gold juice or hot oil!

As for the so-called fire arrows, they are generally wrapped in oil-soaked cloth around the arrowheads, which are not only top-heavy, but also cannot be drawn full so that the fire will not be extinguished.

Generally, the role of fire arrows is to ignite them remotely, that is, the preparations for fire attacks have been arranged, and they can be used to ignite straw and the like from a distance.

As for setting the enemy on fire with fire bolts? There is some hope only if the target is a tent in the camp, or in the event of a water battle, it can land on the opponent's deck, preferably on the sails......

And when you really want to attack with fire, rushing forward and throwing torches is definitely more reliable than fire arrows!

The covered bridge car and the Lu bus were covered with cowhides, and if they were to be burned, they could only rush close to the battle, and then throw torches, relying only on long-range fire arrows to "cup train water".

If you don't want to go out to meet the enemy, you can only shoot honestly......

Huang Zhong has not been afraid of anyone for this kind of thing!

Special Blessing Skill - Fierce Bow, Unleash!