When the speed of the heat engine reached a certain standard, Lu Miaozi decisively opened the pneumatic valve on the side, only to see that the four wheels covered by a layer of iron sheet and only the axle were rotating rapidly, faster and faster, turning into a blurry afterimage that was difficult to see.

Accompanied by the thick black smoke from the combustion chamber under the hot gas engine, the two rear wheels, which are indirectly connected to the engine, drove the entire repeater chariot towards the meadow by the lake at high speed, passing more than a dozen wooden stakes used to record distances along the way, leaving deep wheel traces.

Compared with the chariots of the Spring and Autumn Period and the Warring States Period, which were only four or five feet wide and weighed only a few hundred catties in general, the new chariots equipped with steel armor and fuel storage rooms were much larger in size and weight, starting at four or five thousand catties, and the width of the wheels was increased to reduce the pressure.

Although it is certainly not as large as the Linchong Lu Bus, which can be called a mobile fortress and has as many as five floors, it relies on the power of hundreds of horsepower of the heat engine and the newly designed weapon system, whether it is mobile, lethal, or defensive, it completely crushes the giant chariot like the former.

"Mozi Bei Gaolin" says that the "crossbow car" can be used to defend the city. It has "two axles and three wheels", which can be used as a frame for the car and led by a wheel; The arrow is "ten feet long", and the end of the arrow is connected to the rope, like a gee shot, and can be retracted with a roller.

At present, the four-bow crossbow cart widely equipped by the major forces can fire four giant crossbow arrows each time, which not only has strong penetrating power, can penetrate the enemy's shield armor, and the range can reach 1,000 steps away, but due to the heavy body, it has a limited role in flat field warfare, and is generally only suitable for defending cities and street battles.

Combined with these original ballista and arrow cars, as well as the design ideas of the steel crossbow machine and rail car in Yang Gong's treasure house, and then added the engine and armor shell, and reinforced with iron sheets on many wooden structures of the body, after repeated streamlining and optimization, there was this "repeating crossbow chariot".

In order to make efficient use of energy and improve the efficiency of archery, the repeater adopts a frame retreat structure as a whole, which uses the reaction force of firing large arrows to make the bow arm retreat a certain distance, reduce the time to reopen the string, and offset part of the recoil to stabilize the frame structure.

Generally speaking, the improved new repeater has two modes of one arrow at a time and ten arrows at a time, with one main arrow path and nine nine arrow paths, the total tensile force of the bowstring is about 400 stones, and the energy of the hot gas engine at the rear of the car is obtained through the connecting rod, flywheel and air pressure transmission, and the crossbow can be continuously driven to shoot after the corresponding mechanism and safety device are turned on.

Due to the use of a large number of pneumatic transmission devices, a number of rotatable metal pneumatic tubes are designed to drive the mechanism, the crossbow machine module on the chassis of the combat vehicle does not need to be fixed, it is designed to have the ability to rotate, and the firing direction of the arrow can be adjusted in a considerable range, which significantly improves the flexibility and mobility of the repeater chariot;

Whether it is the winding of the crossbow machine, the rotation of the arrow platform, or the speed change and steering of the front and rear wheels, while being driven by the engine, it can also allow the warrior to directly accelerate and decelerate through the winch and the true qi, improving the accuracy at critical moments, and at the same time requiring extremely high calculation and mastery.

As for the arrows fired by the repeater, it is well known that even if they are fired with the same force, whether they are attached to the true qi or not will have a greater impact on the penetration and range. Therefore, in order to ensure the power, in actual combat, it is best to let the warrior attach the true qi to the arrow before launching.

However, because the true qi of the acquired martial artist is attached to the arrows, it will inevitably dissipate in the process of flying hundreds of zhang out of the body, and the speed of attachment is not very ideal, and it is completely impossible to keep up with the upper string of the machine in the ten-arrow mode, and the innate martial artist must be allowed to manipulate the weapon system in order to exert the maximum power.

……

As we all know, one horsepower or one horsepower originally derived from the power of a strong horse to work, that is, a chariot drawn by four horses, can basically be regarded as the level of four horsepower;

Well, the maximum speed that a new chariot can achieve with hundreds of horsepower towing is actually quite impressive, and after testing, it can maintain a speed of 200 miles per hour on most terrain.

Although the control conditions are high, requiring one or two elite martial artists and an innate master, relying on the two modes of two breaths and ten arrows and more than 600 steps, or one breath and one arrow and 1,500 steps range, the repeater chariot can easily pursue the enemy army and slaughter it with heavy arrows.

Under normal circumstances, in addition to elite cavalry units, the charging speed of ordinary cavalry is also at the level of 80 to 120 miles per hour, and due to the limitation of horse endurance, it can only be maintained for a short time before it needs to be slowed down, which is far inferior to chariots, which also determines the outcome of their encounters.

The so-called bucket chariot, as the name suggests, is to install a giant stainless steel bucket on the front of the chariot powered by a hot gas engine, and also extend a sharp sickle at the axle, with the powerful impact of the chariot to cut the enemy along the way into two sections, regardless of the heavy cavalry and heavy infantry can not resist.

Considering that the enemy's elite innate skills may be able to intercept and wreak havoc on a vehicle with its steel armor, the Giant Bucket actually has a variety of combat modes, from erecting a giant shield with a spiked surface, to tipping over obstacles, or to hammering enemies with a slap rod.

Even more lethal is that the two bucket chariots can be connected to each other by extremely tough, hair-thin black iron wire, and pulled into a flying blade that is tens of feet long and sharpens iron like mud, greatly increasing the range of cutting enemies.

With the high-speed charge of the two vehicles, on the wide road that was up to 100 zhang wide, countless soldiers and horses broke their arms and legs, and the stumps and flesh were spread all over the ground, and there were no living creatures, making it difficult for the enemy to have the slightest heart of resistance, and completely collapsed after seeing it.

……

More than 200 large tents are densely distributed along the grassy shores that surround the lake, which are in fact temporary dwellings for many craftsmen next to the test site, as well as storage areas for various mechanical artifacts.

Seeing the repeating crossbow chariot driven by Lu Miaozi and Shang Qingya, Liu Zongdao, the second deacon of the ranch, greeted his subordinates, and immediately sent a few skilled riders to quickly chase after him from the rear, but they were pulled far behind, and after a period of adjustment, the spacing was finally maintained;

Of course, it is not that the horses in the ranch can really catch up with the speed of the chariot, but because Lu Miaozi chose to slow down in order to test the efficiency of the engine, and reduce the configuration of the engine and fuel appropriately through subsequent calculations, so as to achieve the purpose of reducing weight and burden, and reducing process requirements.

After running two or three laps around Luofan Lake, Shang Qingya poked her head out of the skylight that did not close the guard at the top, waved her hand to the rear, signaling that the tired riders did not have to continue to follow reluctantly, and adjusted the steering of the front wheels, causing the chariot to rush straight towards the high woods.

Although it does not have a special device in front like the bucket chariot, the front armor of the crossbow chariot is also arranged with a solid ramming angle, and even if it knocks over several rows of large trees head-on, as long as it slows down and brakes at the right time, it will not suffer much damage.

However, judging from the fact that Lu Miaozi, who was in charge of controlling the repeater weapon system at this time, looked out intently from the long probe hole, and then loaded two special arrows six feet long into the two secondary arrow paths on the very edge, it can be seen that the content of his current test should be to use trees as targets to attack.

In an instant, with the "snort" sound of pneumatic transmission, mechanical friction and the crisp sound of smooth winding, the high-pressure pneumatic pipe drove the piston connecting rod to pull the bow arm into a curved arc, and then the bow arm bowstring was released at the same time, causing the two arrows to be fired immediately.

In the next moment, the sound of a sonic boom sounded, and the whole archery tower retreated half a foot away, and two thin gray lines with ever-widening spacing crossed the sky that had gradually sunk into darkness, and in an instant it swept a distance of forty or fifty zhang, and flew into the depths of the woods;

The stainless steel arrows that were attached to Lu Miaozi's true qi either pierced or shattered the trunks of large and small trees that passed along the way, and finally the remaining strength was inexhaustible, nailed into the bodies of two stout trees more than 300 zhang away, and half of the arrows were exposed.

Extinguishing the coal in the combustion chamber, and letting the flywheel connected to the heater slowly slow down, Lu Miaozi closed several valves in the car, and then completely opened the movable plate on the roof, poked his head out with Shang Qingya, and looked towards the woods.

Under the breeze, I saw a few big trees more than 20 zhang away swaying for a while, directly broken into two sections from the middle, the upper half fell down, the fracture was smooth as a mirror, and along with the strong wind, the other trees in the more inside were also broken in turn, and finally formed a large piece of fan-shaped, several hectares of open space.

There is no doubt that if the iron armor is not equipped, all the enemy troops in an area of hundreds of acres will be cut into two pieces and killed on the spot, exactly the same as the fate of these trees.

The technique used here is actually quite simple to say that it can turn a straight arrow into a wide range of strikes, which is to connect two arrows with a black iron filament;

When the arrow is fired, the black iron filaments are tightened and straightened into an incredibly sharp blade, cutting everything in its path in two, not much different from the tactics of the bucket chariot connected by silk threads.

Referring to the "Heaven and Dragon Slayer" in the dark iron chain that can be stretched longer and longer, the dark iron alloy under a certain ratio has strong ductility, no less than gold, platinum, silver, etc., and can be drawn into extremely fine filaments through a special process, while still retaining amazing strength, enough to easily cut gold and iron.

A pound of black ferrous alloy, if completely stretched into a long line as thick as a long hair, is more than ten miles long, divided into a "flying blade" that cuts people and horses, it can reach as many as fifty or sixty sections, and can also be recovered through magnets after the war, although the materials are extremely precious, but compared to its power, it is nothing.

While collecting and smelting a large number of rare materials such as dark iron and cold iron, Angola has built an astonishing number of iron-making blast furnaces, which is expected to increase the annual output of steel in the south by more than five or six times, and the quality is also higher than before.

Coupled with the extensive exploration and excavation of coal mines, the overall industrial development has been quite rapid, and after the recent completion of the manufacture of these new chariots, they can be mainly invested in other industries that benefit the people.

"This kind of lethality, even an army of 1,000 people in iron armor will be routed under two arrows, and the casualties will be heavy."

Unable to see the distant scene clearly in the dusk, Shang Qingya took out a telescope carefully made by Lu Miaozi and looked at the last row of fallen trees three hundred zhang away, and her heart shook.

Considering that the hundred-man team of the current Central Plains regular army formation is generally twenty paces wide, such a repeating crossbow chariot can completely match or even defeat an army of tens of thousands of people under the condition of continuously firing Xuantie Flying Blade Arrows, which is really an unprecedented super weapon.

Even if the production of flying blade filaments is limited and it is impossible to equip them in large quantities, relying on the six-foot-long heavy steel arrows, with the advantage of the rate of fire and range, a salvo in a dense queue can penetrate at least dozens of people, and it can also clear a large area.

"Don't overestimate the power of the chariot either."

Lu Miaozi shook his head and explained: "Without the cover of the left and right military formations, or the bucket chariot, even the observation port, exhaust port, and wheel parts of the crossbow chariot are easy to be damaged by attacks, and they still have to be tested in actual combat." ”

"In the 10-bolt salvo mode, after every six rounds of fire, the original arrow magazine will be emptied, and it will take ten breaths to reassemble. If you are surrounded by enemy forces at this time, the difficulty of breaking through will be significantly increased. ”

Turning around and leaning to the position of the hot gas engine behind him, he glanced at the beads of sweat that Shang Qingya had been exposed to by the heat from being close to the engine, and quickly touched it twice with his fingers, judging the cooling rate of the surface of the body.

After a brief inspection, Lu Miaozi condensed a thin layer of ice in his eyes to play a magnifying role, carefully observing the subtle damage of various machinery after this operation, and said with some sighs:

"I've heard that there is a material called 'aerogel' that has a strong insulating effect, and it is extremely light and non-flammable. It is rumored that when Lao Xiang was busy with his task of refining spiritual materials, he took the time to make some, which were indeed a kind of strange things. ”

"If it is wrapped around the outside of the heater and the combustion chamber and isolated from the cabin, it can improve both the efficiency of heat utilization and the comfort of the driver. Of course, the cost must be a lot higher. ”

"Also, the wooden structure inside the combat vehicle is obviously still slightly deficient in terms of strength and wear resistance, and once there is a problem, it is even more difficult to disassemble and repair, and it will directly make a large area scrapped."

"If we change to metal while keeping the total weight unchanged, it is said that we have developed a new material called 'foam steel', which is only slightly heavier than wood and has good toughness and shock absorption effect, so we can try to make it and assemble it."

Due to the fact that the innate master can carefully control the true qi that is separated from the body, the difficulty of special materials such as "aerogel" and "foam metal", which originally required a high production process, has been greatly reduced with the inspiration provided by Zhao Qing.

For example, the most important problem to be overcome in the production of "metal foam" is that pure liquid metal is not easy to foam by blowing into bubbles, because the bubbles will rise quickly under high temperature and pressure, and there is no way to stabilize them.

However, under the action of the internal force of the true qi, this is not a big problem, just take the true qi into it, turn it into bubbles that will not be discharged, and form holes in the solidification process of the liquid metal.

As for the fact that most warriors were reluctant to enter the factory and become workers specializing in such skills, Zhao Qing had already prepared corresponding countermeasures, while improving their salaries and publicizing them in the newspapers, while vigorously cultivating ordinary people to become warriors.

In the future era when martial arts are combined with science and technology, and industry, there is no doubt that it will be a beautiful society in which everyone can learn martial arts and become literate, and the productive forces will develop rapidly.

In the process of moving towards this era, the promotion of all kinds of suitable exercises is really the most important thing. In order not to waste resources and time, and to improve the efficiency of martial arts, a large-scale test of cultivation qualifications will play a great role.

……

It is said that the lightest tank is only 3 tons, and the combat vehicle is about four or five thousand pounds