After the shell was fired, the high-temperature and high-pressure gas in the barrel ignited the slow-burning gunpowder in the tube! The gunpowder burns slowly as the shell flies, and finally ignites the explosive powder inside the shell, so that the explosion time of the flowering shell can be roughly controlled!

But there is also a huge problem with mortars, that is, the accuracy is too bad! After all, such flowering shells do not have a tail like modern mortars, so their landing point is simply disorganized! It's totally Brownian motion!

So the craftsmen came up with another solution, which was to add a sheet wooden butt to the shell and fix the round cannonball to the butt with four iron bars!

The advantage of the butt is that it plays the role of a tail fin, so that the landing point of the shell is relatively accurate! And with the stock, the airtightness of the gun chamber is guaranteed, so that the shooting distance is also improved! And all this Liu Haojia has already developed, but he doesn't plan to promote it now, and he doesn't even plan to let the court know that he has good things in his hands!

Because now the court and army of the Ming Dynasty are a rotten sieve, and any good things and confidential information will be revealed! He made this new type of flowering bullet, as long as it was handed over to the imperial court, it would mean that the enemy would also know! He didn't want the shells he made to fall on the heads of his own soldiers one day!

So when Qi Jiguang proposed to watch this kind of shell, Liu Haojia directly shook his head and refused! He said, "It's not that the lower officials don't want to show you, it's that this kind of shell is not finalized at all now! Now the landing point and explosion time of the shell are difficult to control, and if you are not careful, you will hit your own family! Today, these five shells can accurately land and explode, which is the result of many exercises and good luck! Let's wait for a while, and the results of the research will naturally spread throughout the army!"

Then Liu Haojia introduced the actual situation to the true and false, and finally dispelled Qi Jiguang's urgent thoughts! And the other civil officials couldn't help but breathe a sigh of relief when they heard that this kind of shell had many shortcomings, and they couldn't help but breathe a sigh of relief, and even they didn't know why they had such thoughts!

Then Liu Haojia said, "Your Majesty, now that you and everyone have a general understanding of going back, you can go outside to watch the drill!"

When Emperor Wanli heard this, he stood up and said, "Go, go!" Liu Aiqing leads the way!"

Liu Haojia led everyone to the back of the camp, where there was a large open space, which was usually the place where the soldiers conducted large-scale drills! The whole land has already been trampled flat and flattened! And a raised platform has been built near the back door.

And as soon as everyone stood on their feet, they found a huge building opposite! So everyone picked up their binoculars and looked forward, only to find that there was a wall with a gate on the opposite side! The style is basically the same as the city wall of the capital division, but it is a little smaller!

Of course, everyone also understands that it is not that Liu Haojia can't do exactly the same thing, but to prevent someone from impeaching him for overstepping the rules or having different intentions! At the same time, they also understood one thing, that is, this drill may be related to that section of the city wall! Probably a rehearsal of a siege battle!

Liu Haojia led everyone to the high platform again, and without explaining, he waved his hand directly to the bottom, and immediately there was a drum sound! A moment after the drums sounded, everyone saw a large number of soldiers pouring out of the camp gate! These soldiers ran with dust and a strong momentum!

However, this time, instead of listing the dense phalanxes like in the school field, they listed more than ten hollow phalanxes! At the same time, many vehicles that had not shown up just now entered the phalanx mixed with artillery!

At this moment, the drumming suddenly stopped, and the dense footsteps below disappeared in an instant, and all kinds of whistles and drums disappeared at the same time, and the world was quiet in an instant! At this time, everyone found that all the phalanxes had been demined neatly! There is a gap of more than 100 steps between each phalanx, and at the same time, all the phalanxes are divided into two rows of staggered arrangement, the first eight and the last seven, a full fifteen phalanxes!

At this time, Liu Haojia explained to everyone: "This exercise is mainly to practice two combat methods! One way is to meet the enemy on the plains, and the imaginary enemy is the Mongolian *** on the steppe! The other is to rehearse attacking the rebel-occupied cities! I don't know if you have anything to ask?"

Qi Jiguang immediately said, "This official has a problem! This square is very strange to me, can you explain why it is arranged in this way?"

In fact, other people also think that the phalanx in front of them is indeed very strange! Because according to the tradition of the Ming army, all kinds of troops are in a single formation, but they can be mixed according to the team. But Liu Hao's phalanx is completely different, he mixes all the soldiers of different arms into a phalanx!

At the four corners of the phalanx are pikemen with extra-long spears, and they form four small but dense phalanxes! The rest of the firecrackers and sword and shield soldiers formed the four sides of the phalanx! There were five rows in the phalanx facing the enemy, all of which were densely packed with firecrackers! And the other three sides of the phalanx are all two rows of people, the outer layer is the sword and shield soldiers, and the inner layer is the fire gunners!

Hearing Qi Jiguang's question, Liu Haojia also explained loudly: "Lord Qi, please look, if the spears at the four corners of this phalanx are flattened, the tips of the spears can almost be put together!" This dense spear can act as a shield for the musketeers, stabbing enemies who rush in front of them, so that the musketeers can shoot calmly! As for the sword and shield soldiers on both sides, they can usually maintain the flanks of the phalanx, and they can also assemble at any time to engage in hand-to-hand combat with approaching enemies! As for the vehicles in the middle, there are all kinds of baggage vehicles and artillery, and we will see the role of them in a moment!"

Qi Jiguang looked at the phalanx in front of him and pondered it carefully, constantly sketching the scene of fighting against the enemy in his heart! The more he thought about it, the more he felt that this formation was useful! This kind of phalanx itself can be stabilized, and the surrounding phalanx cooperates with each other, and it is even more immovable! If you command it properly, you can even set traps to trap enemies in and flank them!

So the more he thought about it, the more envious he became! Liu Haojia in front of him is much younger than him, but he can already command an army of 60,000! Experiment with various formations and use various tactics! Considering that the number of troops under his command is so scarce, it can only conduct small-scale battles, and it is simply impossible to conduct large-scale battles! At this time, he suddenly thought of something, if he took refuge in Liu Haojia, would he have the opportunity to command tens of thousands of troops?