Liu Shaoyang went to see the changes to the gun carriage car again, and he admired it even more at a glance. The bottom of the car has been changed from the original two wheels to a total of three wheels in the front and rear single, which is more convenient and stable when pushing. There are several rotating iron supports on the body to prevent the gun from vibrating when the gun is fired. A turntable is set up below the upper trunnion support to adjust the firing position.

Just as he was about to look up again, Fang Tianlu suddenly stretched out his hand, pointed to a newly added baffle above the gun carriage and asked, "Yang'er, do you know what this thing is for?"

Liu Shaoyang looked at Fang Tianlu's finger, and saw that the baffle was slightly curved in an arc, six feet square, fixed on the body. There is a long hole in the middle, and the cannon body sticks out from this, and the side is marked to be wrapped in iron sheets, and blurted out: "The gunner handling the artillery must be the first to bear the brunt of the enemy's crossbow, and this baffle must be set up to cover the loss of the arrow when the gunner operates the cannon!"

Fang Tianlu stroked his palm and praised: "You little ghost is really clever, you just said it at once, and you don't teach for many years. It's really a pleasure, when the big white floats!" he said and drank all the wine in the bottle.

Liu Shaoyang couldn't bear it in his heart since he inquired about Fang Tianlu and said that the transformation of the iron cannon had been made. I just wanted to go and see what was going on, and after a few drinks with Fang Tianlu, I said eagerly: "Master, you can take the apprentice to see this iron cannon!"

Fang Tianlu said seriously: "What's the hurry, today you accompany the teacher to drink and have a good drink, and the master will take you to see it tomorrow." ”

Liu Shaoyang was curious and unbearable, where could he wait for tomorrow, he was anxious, and muttered: "Your old man showed the drawings to the apprentice, but the interest of the apprentice has to be postponed until tomorrow." The apprentice is really anxious to see what this transformed iron cannon looks like, and when he finishes reading it, he will come back and have a good time with you, Master!"

Fang Tianlu heard Liu Shaoyang's words, raised his head and drank another glass, and scolded with a smile: "I knew that you were in a hurry to see it! This iron guy is now in the armory, and the master will take you to take a look, and you can also see several other objects that have been created in the Zhuangzi in the year you have been gone. He stood up.

Liu Shaoyang said happily: "The temperament of the apprentice master is the clearest, I know that the master you said that you will see it again tomorrow to find me happy!" Hurriedly got up and hugged Fang Tianlu, took a qi wind lamp and lit it in his hand, and the two of them slowly walked towards the armory connected to the secret hall.

The master and apprentice opened the gate directly south of the secret hall, turned around along the dark passage, and walked less than a mile. Finally, when I turned around a stone wall, a dark underground hall appeared in front of me. Liu Shaoyang helped Fang Tianlu to sit down, and lit more than ten gauze candles along the wall in turn, and the display in the hall gradually became clear.

I saw that inside and outside the hall, there were more than 100 large boxes. Fang Tianlu stepped forward with a smile, opened one of the wooden boxes, and took out a four-foot-wide crossbow machine with a smile and said: "This crossbow is made for the division for many years combined with the crossbow machines of previous dynasties. A person with a slightly better arm strength can control it alone, the master is called the 'Split Array Crossbow', a few days ago a total of 150 were built, and these dozen boxes are all there. ”

Liu Shaoyang took the crossbow machine and held it in his hand for about thirty or forty catties. The crossbow is fastened on the machine spring, and the reciprocating is ingenious, and four arrows can be arranged on the road groove, and the crossbow arrows in the arrow warehouse above can fall after shooting. Then the trigger is used to pull the strings, and the crossbow can be reissued, and it is really a collection of ancient and modern bows and crossbows, and I can't help but praise it: "This crossbow is really ingenious, and the master's wisdom is Zhuge Wuhou, Han Zhang Zifang is reincarnated, and I am afraid that I will sigh to myself." ”

Fang Tianlu couldn't help but be angry and funny when he heard this, and grinned and reprimanded: "You foolish tongue, you can laugh as much as you want, how can Master compare with Ancient Zhijie!"

The two of them walked towards the main hall again, Fang Tianlu looked around, opened a wooden box again, and took out an iron firearm from the shelf inside. He took out a piece of cotton cloth from his arms, and said slowly while wiping the gun's side: "Shaoyang, hasn't Master been looking at all kinds of handcuffs all these years? This firearm was improved by Master with reference to Mingting firearms, and a total of 100 guns were cast!"

Liu Shaoyang took the handcuff from Fang Tianlu's hand and held it in his hand to examine it carefully. This handcuff is less than two feet long, and it is also composed of three parts: the breech, the medicine chamber, and the tail, and Fang Tianlu on the side continued: "This handcuff for the teacher is a little different from ordinary handcuffs. Ordinary handcuffs are filled with gunpowder with a medicine spoon, and then the lead pellets are placed to be repeatedly scooped, and the process is slow and cumbersome. Open the dark groove next to the medicine room of this handcuff, open the dark groove after the release is completed, fill the gunpowder, and then close the dark groove. The breech of the handcuff is embedded with a rotating chamber, which is buckled with a machine bracket when firing the lead shot, and the shaft is twisted out when it is loaded and issued, and the lead shot can be placed. Master gave this gun a name, calling it 'Ling Tian Gong'!"

Liu Shaoyang deducted the dark groove according to the law, the structure is exquisite, and the opening and closing are as convenient as Fang Tianlu said. There is a wooden handle at the tail chisel, which can be operated by one person by filling the medicine. The medicine chamber is thicker than the ordinary handcuffs, the breech is thin, and it is about 20 catties in the hand, and the opening and closing of the fire door is also more convenient.

Liu Shaoyang looked at it carefully before putting the handcuff back into the box and sighed: "Ling Tian is really a good name! Master designed the handcuff so cleverly, it really makes the apprentice admire! It's just that this handcuff has many complicated inlays, and it must be quite difficult to build." ”

Fang Tianlu sighed: "That's right, it's extremely difficult to inlay this handcuff parts. Even if an ordinary craftsman is not able to make it, even if he is a skilled craftsman, he will take the trouble and time to say, and for every four or five pieces made, there will be three or four unusable scraps, so the money spent is very large. The craftsmen in the village have been casting for months in several refining workshops, and they have only made these 100 pieces. ”

Liu Shaoyang walked in again, and at a glance, he saw a cart wrapped in a black scarf in the corner of the hall, and it was estimated that it was the cannon that was created. Busy taking two steps forward, he lifted the black cloth, and a thousand-pound iron cannon fixed on the gun carriage came into view. The gun body, the medicine chamber, the fire hole, and the alterations of the carriage are all as depicted in the drawings.

I also saw a few lines of small characters engraved on the trunnion card, one of which read: "The cannon body is turned here, the medicine room is full, and the projectile is fired up and down four hundred paces."

Looking at the rest of the lines, they are also engraved with the approximate distance of the projectile falling at the rotating place, presumably engraved by observation at the time of the test launch. At a glance, the whole artillery carriage is eight feet square, like a giant beast, and I can't help but be amazed.

Fang Tianlu stepped forward with a smile and stroked the cannon body with his hand, as if he was touching his own child. Suddenly, his expression was lonely, and he said gloomily: "This thousand-pound iron cannon, although the master is doing his best to improve it. Compared with the original iron cannon of the Hongwu general, the distance of the projectile, the complexity of the loading projectile, the stability of the cannon body, and the difficulty of moving and rotating have all been greatly improved. But there are still problems that seem to be stuck in my throat, and I still don't know how to solve them after thinking about calculations repeatedly. ”

Liu Shaoyang saw that the master turned from joy to sadness, and he vaguely guessed a few points. But listening to Fang Tianlu continued: "I built this iron cannon by myself, and I was first happy for the teacher, but then I fell into repeated thoughts. One of them felt that each shot had to be filled with gunpowder and then loaded with new shells. No matter how much it is improved, it is cumbersome, and it can only be solved by projectile bursts. It's just that the master of this continuous projectile method has thought about it for a long time, but every time he sketches and constructs the mechanism, he only feels that the thoughts are complicated, and if he wants to create it, he can't do it. ”

"Moreover, this cannonball is fired thanks to the burning power of gunpowder! This cannon is so modified that it seems that the projectile can shoot five or six hundred paces no further. If you want to increase the range, you have to make great changes in the structure and mechanism, and the master has been thinking hard for more than ten days before he can get a glimpse of the way. ”

When Fang Tianlu said this, he pointed to a few lines of small characters engraved on the ear shaft, and said slowly: "The third is here, these engraved distances are roughly obtained by the master when he tried the cannon a few days ago, when he rotated the cannon to low height and repeatedly fired projectiles. At that time, I vaguely felt that when the gunpowder in the medicine room was more or less similar, the amount of rotation of the iron cannon seemed to have a great deal to do with the distance of the projectile! However, where the projectile falls, it seems to be a profound arithmetic, and I think of the classics written by strange people in ancient and modern times, but there is no such thing as this. Master meditated for many days, but his mind was chaotic and he didn't realize anything!"

Liu Shaoyang saw that Fang Tianlu was thinking like this, lest the master would become ill from hard work, so he thought about it and said: "Master, in the past, the two armies faced each other, and the equipment for long-range attacks was nothing more than a bow and crossbow stone cart. This fire cannon is just something that has only been available for many years! It's like a giant flame in the future, and if the time is not right, it can only be a glimmer of spark. From this point of view, Master's difficulties can be pondered slowly in the future, and if they fail, they can be left to future generations to ponder. ”

Speaking of this, he paused and said: "What's more, the Supreme Dao Ancestor has a saying: 'The way of heaven is like a bow and a high one, and the lower one lifts it, and the surplus loses it, and the insufficient one makes up for it.'" 'Master, your intelligence is rare in the world, and these bows, crossbows, and firearms of the Ming Court have been greatly improved in just a few years in your hands, which is really a great achievement! In the disciple's opinion, these difficulties are impatient for a moment. When the time comes, it will be as natural as it gets!"

Fang Tianlu has studied the art of war all his life, and he is quite familiar with organ arithmetic. Reading all the ancient and modern classics, astronomy and geography are all incomprehensible. More than ten years ago, Zhang Shicheng was defeated and died, and Fang Tianlu hid in Jiangsu and Zhejiang as a strategist, and was found by Lu Zitong Wuxingmen, and was regarded as "Zhizun", and started to study bows and crossbows and firearms. The so-called genius is a genius, one law is clear, and all laws are clear. Fang Tianlu has burned the anointing over the years, and over the years, his knowledge in military equipment has surpassed that of his predecessors, and he can really be called a scholar.

However, Fang Tianlu has always relied on his intelligence, and always rises to the challenge whenever he encounters doubts, and his thoughts are not endless, and he is endless. Listening to Liu Shaoyang's words today, his heart was suddenly shocked, and he was stupid for a while, and only after a while did he mutter: "Yang'er, what you said is reasonable! There are few perfect things in the world, how can you not know how to advance and retreat when you do things." Your master has lived most of his life, and he thinks he is brilliant on weekdays, but when he encounters difficulties, he can't understand as well as you. That's it, according to your words, think about it slowly in the future!"

Thanks to Liu Shaoyang's enlightenment, Fang Tianlu did not study the difficulties he thought. It is necessary to know the problems of artillery projectiles firing continuously, where they landed, and how far the projectiles went. More than 100 years later, Fang Cai in Western countries, based on the theories developed by many brilliant people, has been solved with the efforts of countless people. At this time, the firearms first appeared, Fang Tianlu was already a year old, if he blindly insisted on this, it would be a waste of mental energy, thinking day and night, it would inevitably be exhausted, and there was a risk of life.

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