Candi's request was simple, hoping that Lu Jingzhi could find a processing method to modularize the spell.

"Sir, I've found that if these two propeller shafts are placed on the propeller wheels, the mechanical load can be increased by 50 per cent, and if this wind drive is mounted under the pedals and connected by the crankshaft, it can increase the travel speed by 30 per cent, and there is no longer any need for human power. Kandi drew a simple schematic diagram of an alloy part on the ground, "Today we are modifying the equipment that produces those two drive shafts, but we can't handle the drive module." ”

Lu Jingzhi thought for a moment and asked, "If it is only an increase of 10% to 20% of the speed, can you accept it?"

Kandi looked at Lu Jingzhi in bewilderment, quickly calculated in his heart, and replied, "No problem, sir." However, my calculations are conservative, as long as your drive module maintains the current power, it will definitely increase the travel speed by more than 30%. ”

Lu Jingzhi: "In fact, I can't maintain the current power, and even have to reduce it by 20% to ensure production." ”

Candy's eyes widened, and he said, "No, sir, I never wanted you to ensure a high level of production, and if you can equip a tenth of your vehicles with automatic drives, we'll have a force to be reckoned with." Even if it doesn't work......"

Lu Jingzhi nodded and said, "I can understand your thoughts, but if we can lower the requirements a little, we can install all the cars with drive devices." ”

Reducing requirements is a necessary condition for mass production.

Lu Jingzhi never knew why handmade ones were more valuable than mass-produced ones, but now he knew that people's pursuit of perfection is endless.

"It's the same with the barrel, lower the requirements, I don't want electroslag remelting, I don't want self-tightening tubes, I just need to be able to withstand one or two hundred low-pressure shots. Lu Jingzhi felt that once he lowered his requirements, his eyes suddenly became clear, and he no longer had to worry about the balance between output and quality, and now there was much more room for flexibility.

With the idea of lowering the requirements was implemented, the elemental drive devices, which had previously relied entirely on Lu Jingzhi's hand-painted and hand-assembled, could be realized through printed alchemy arrays and workers' assembly. Similarly, the printing and assembly of the firing alchemy array that is ready to be placed on the cannonball does not need to be absolutely accurate, as long as it can achieve 95% of the match, so that although the efficiency is attenuated layer by layer, it can still provide 50% of the output pressure during combat. And because the emission pressure is reduced, the strength and thickness of the material can be reduced, the yield can be increased, and the use is more light.

By the day the training program began, the company had produced a total of 400 tracked tricycles, 300 of which had been converted to elemental drive, and another 100 needed to be powered by personnel – two people had to sit in the back seat and press the pedals as hard as bicycles. The portable gun only needs 20 kg, the caliber is slightly larger than the cast iron element grenade, and a layer of cloth needs to be covered on the outside of the iron case before firing to prevent the iron case from scratching the barrel when firing, and at the same time it can play a sealing role, so that the air element printed on the iron case plays a greater role in propulsion.

Lu Jing ordered all equipment to be converted to personal protective gear. After three days of training, 1,100 solid alloy steel helmets were produced, along with some ancillary products - mirror-grade stainless steel. The steel is so finely polished that it can clearly distinguish the features of a human face from up to 50 meters away. Therefore, after several modifications, each tricycle is equipped with a periscope system, which can observe the movement of people or vehicles at 50~100 meters without showing its head in the car.

Everything is ready, only the east wind is owed. That's when the war began. Perhaps in Lu Jingzhi's view, it is better that this east wind should never come, because if you can delay it for one more day, you will have one more day of preparation time.

But the east wind still came. As soon as the fifteenth day arrived, Jonny came.

It's not that he's too trustworthy, it's not that he's too greedy and comes to ask for people when the time comes, it's that he's too curious about what kind of magic can solve 1,000 humans at once. If such magic exists, it is also a great threat to the undead - of course, if it were death magic, it would not pose a threat to the undead.

Seeing Jonny leading dozens of cavalry to guard outside the prisoner of war camp early in the morning on tall undead horses, Lu Jingzhi's heart was also a little hairy. If they rush over before they are ready, they will have to fall into a bitter battle.

"Go and tell Meller, I'll have his men get the sappers ready. Lu Jingzhi whispered to Luo Ke beside him.

Roque immediately ran to convey this instruction to Meller, who was not ambiguous and took the lead in holding the alloy sapper shovel in his hand. This kind of sapper shovel is made of medium carbon steel, which has both hardness and toughness, but due to limited production capacity, only the science and technology company is equipped with this thing.

Jonny was not a fool either, and he clearly saw the hostility in the eyes of the human prisoners of war, so he issued a whistle to put all the cavalry on guard and wait for the enemy, while his own knights returned to Tilly for reinforcements. Although he will not panic at all when he leads 70 cavalry to deal with more than 1,000 unarmed humans, but the other party has a magic envoy, who dares to guarantee that there will be no miracles?

All the cavalry drew their horses and formed a heavy charge formation, which was the safest when breaking into the enemy's formation, although it was less effective at killing. Jonny's instincts told him that this POW camp was no longer the place where he used to be able to run amok, so he adopted this formation without even thinking about it.

What Lu Jing was waiting for was his reaction. Seeing that Jonny looked like he was facing a great enemy, Lu Jingzhi also had his own reason to be vigilant, so he ordered all the personnel to also enter the second level of alert. The second level of alert is to be ready for all combat, but it is forbidden to board the vehicle.

Most of the vehicles are in the open field, each car has three seats, there is an air cannon between the two seats in the back, the trigger alchemy array engraved in the cannon body can trigger the burst array to provide 2 standard atmospheric pressure chamber pressure, after 800mm of cannon chamber acceleration, the 200-gram cast iron element grenade can fly out of a straight line distance of 150 meters, and trigger the detonation after landing. Cast-iron shelled elemental grenades can blast through dozens of tons of rock, making them a common explosive substitute for POWs in mining. In addition to this, each vehicle is equipped with four large slingshots made of sunflower stem fibers that are used to fire cryogenic ceramic-shelled elemental grenades, which are not as powerful as cannons, but can also throw elemental grenades about 40 meters away. The important thing is that it is from far and near, there is no need to aim, and the landing point is all based on estimates. Of course, the accuracy rate is also very impressive.

Lu Jingzhi also equipped each vehicle with 5 rounds of high-speed armor-piercing shells, these shells were rushed out on the last day, their front end is pointed, the rear end is a cylinder, but the middle of the cylinder is hollow, filled with air element storage array, as long as it is triggered, it can generate 60 standard atmospheres, and the 4 kg warhead will fly out at a speed of 240 meters per second, causing huge lethality to the target in the straight line of the muzzle.

It can be said that Lu Jingzhi's Lu Jiajun has already fought against the army of the undead.

The soldiers of the Lujia Army, who had received the second-level alert order, gathered at the side of the car and prepared to board the car. All the equipment was on the car, and when the alert order was raised to the first level of alert, it was on the car and started.

A sense of vigilance rose in Jonny's heart when he saw a group of men rushing out, each standing by an iron shell. However, he still expected that this was a large-scale magic of Lu Jingzhi, and if it was a magic array that could destroy thousands of people, it would really be of such a large scale. However, this magic must not be cheap, and I don't know if I can afford it.

With a sense of loss, Jonny moved closer to the camp, and he clearly saw the humans leaning against the iron shell, staring straight at him, as if they were desperate for their own. "Fool," Jonny scolded, laughing, "don't you know how many people can survive until sunset today, and dare to stare at a high-ranking knight so rudely, don't you know shame?"

Of course, no one could understand his words, after all, the language of the dead was based on Old English, mixed with some features of Swedish and Dutch, and evolved over nearly 2,000 years, and these Canadians, who were accustomed to hearing modern English or modern French, did not understand what he was talking about.

Seeing that these people didn't move, Lu Jingzhi didn't even show his face, Jonny vaguely felt that something was wrong, so he restrained the undead war horse and no longer dared to enter the camp. But he couldn't go back so empty-handed, if he pulled the horse back and came back later, maybe Lu Jingzhi's magic had already been tested, and that person might not be willing to lend it to him again. What's more, he will be very faceless in front of these men. In fact, he didn't know that there was a fear in his heart that made him not even dare to turn around and show his back in front of these weak human beings. He froze there, waiting for Lu Jingzhi to appear.

But the humans didn't give him much time to wait, and Byrne quickly obtained Lu Jing's order to be on alert, and passed it on to the company commanders through the heralds. So everyone boarded the tricycle and hid behind the 10mm thick armor, and one person in front of the car steered the direction and started the air element to drive the engine, and the two people behind the car assisted each other to operate the cannon and prepare for fire.

Wilson's car was in the first row, he was the main gunner, and his driver was the same mechanic who was with him who tried to kidnap Lu Jingzhi. Wilson quietly loaded the cannon with a high-velocity armor-piercing projectile aimed at Nighthawk Jonny, but it didn't fire. He was going to wait for the order, the boy's order. He's going to kill everyone who stands in their way for that boy. Because Wilson owes him.

The warning signs peculiar to the high-level undead appeared in Jonny's mind, and he subconsciously pulled out the horse's head and moved a few steps sideways, only to find that there were several silver shiny pipes on those iron shells aimed at him. Although he couldn't see anything in the black holes in the tubes, he could feel the magic in those tubes.

What will Jonny do? Will the war begin?