Su Lu was dealing with military affairs, and Su Yun rushed in from outside the lobby with a spare part and threw it on the handsome case.

"Brother, can you see, why is this part more durable than the parts we made?"

Su Lu picked up the parts, looked at them carefully, and suddenly reacted.

"It's metal parts, but why are they so light?"

"You brought back three flying birds, did you test the flight distance and flight altitude?"

Su Yun sat down on the chair, took a sip of the tea brought by Changning, and said depressedly

"Last time we lost a little wrong, the flying birds of the Taixi people can fly at an altitude of one hundred and twenty meters, we can't compare at all, the flight distance is even more outrageous, the same two flying bird soldiers, driving their flying birds can fly more than a hundred miles."

Su Lu looked at the metal parts and fell into deep thought.

If it is only metal parts, there are craftsmen in the Han Kingdom who can create such parts, but if they are so light and thin, it can only be the reason for the material, at least the steel in the Han Kingdom cannot be made so light and thin.

"In the future, the birds will no longer rush into battle, and the air battle will rely on ballistas and trebuchets, and the Ordnance Department will switch to manufacturing large-space transport birds, specifically transporting sergeants."

Su Lu spoke.

Su Yun and Changning looked at Su Lu with some astonishment, and just this one part denied their own flying birds.

Su Lu put the parts still on the table, "This is a special material, not wood, nor ordinary copper and iron, we don't have this material in our country, and we can't make such birds, and then fight with the Taixi people in the future, our birds are not opponents, instead of going up to die, it is better to use the infantry army." ”

"If we don't have air supremacy, it's not that we are going to lose."

In the next few days, Su Lu changed the training strategy of the crossbow artillery, from the original precision strike to a rapid strike, and the time for a reload and launch was shortened to less than ten breaths.

The crossbow arrows have also been transformed into clusters of arrows that burn when the wind blows.

The birds are now wooden, and they are attacked by fire, which is a great threat to the birds.

The Ordnance Department also received a new military order to manufacture ballistas with a longer range, suspend the research and development of the rest of the ordnance, and concentrate on the manufacture of more ballistas, so as to lighten and miniaturize the ballistas.

The attack on the barbarians was also postponed accordingly.

On this day, Su Lu was meditating in the Governor's Mansion, watching the birds flying in the sky, but there was no trace, and his heart couldn't help but feel sad again.

Lu Zhan stepped on the fallen leaves and entered the courtyard, and said solemnly.

"Lord Wang, the scout who came out of the front sent back the news and found that the army of Taixi had crossed the city of Sunrang."

Su Lu nodded, and the Tessie finally came.

"Probe again, order Ma Ping, send the guards out, and be sure to find the bird camp of the Taisi after the Tessians have set up camp." Shocking

The land battle was ordered to go.

Changning put a cloak on Su Lu and asked, "Lord Wang, the Taixi people are here, can we win this time?" ”

Su Lu looked at the fallen leaves in the yard, shook his head and said, "It shouldn't take long for the Taixi people to get the materials that can make new birds, and there shouldn't be many new birds for them, so this battle shouldn't be too difficult to fight." ”

"But if we want to conquer the land of Qin, I'm afraid it won't be so easy."

Changning's cheeks were full of embarrassment, "Lord Wang, if we also have this material, wouldn't we be able to create a bird similar to the Taixi people?" Then we will not be afraid of the birds of the Tessians. ”

Su Lu nodded, took out the parts that were not wood, and were not ordinary copper and iron, and shook his head.

"It's not easy to say, such materials are not something that can be found casually, if the Tessie people had discovered such parts a long time ago, the birds that pressed on us would have been able to shoot us to death."

With that, Su Lu threw the parts on the stone table, got up and walked out.

He had to rearrange the defenses, and the birds of the Tessians had arrived, and now there were no birds in their own house, and the only ones they could rely on were the ballistas and trebuchets at the head of the city.

Changning hurriedly picked up the parts on the stone table and chased Su Lu out.

Following behind Su Lu, the armament of ballistas and trebuchets was rearranged, and it was already dark.

On the way back to the Governor's Mansion, Su Lu met Cao Hua, who had returned from the birch forest, and several generals who came out of the camp of the Praetorian Guard Camp together and stopped Su Lu.

Su Lu was also a little irritable in his heart, so he sent Changning away, and followed a few generals into the Praetorian Guard camp to discuss the next military affairs.

Changning watched Su Lu enter the guard camp, so he relieved himself and took a few internal guards to go along the long street towards the governor's mansion.

"Ravioli"

"Noodle soup"

"Chickens"

In the dark night, in a gatehouse next to the long street, there was a dim light, and the sound of shouting came from the door.

"Sister Ning, shall we go eat something?"

"I haven't eaten chicken in a long time, I'll go buy two."

Several female guards surrounded and pestered Changning to speak.

Changning was about to refuse, when he saw the boss with his shoulders struggling to transfer a small square table from the inside to the hall.

I thought of my father who walked the streets for no reason, and now my father should also be selling wontons with a burden.

Thinking like this, Changning did not refuse the requests of several companions.

The wife can't escape the clutches of the president

"Let's go, let's get some food."

Everyone dismounted, tied the reins to the tree beside the road, Changning cleaned up, and when they entered the store, several companions had already moved the table and sat down.

"Here, Sister Ning."

The most active Leping shouted Changning.

As soon as Changning sat down, he saw the boss turn around.

"Fauber?"

Seeing that it was Changning, Fu Bo walked a few steps over and said with a smile.

"It's Lord Changning and a few guards, what do you want to eat?"

As he spoke, Fauber picked up the towel on his shoulder and began to wipe down the table, asking with a smile.

"I recently met a fellow with a craftsman, he knows how to cook some food, and we opened this shop together."

Fauber explained.

"I want a bowl of ravioli and two chickens."

"Do you have scallion pancakes, I want to drink noodle soup, preferably spicy."

The female guards were babbling their thoughts.

Fu Bo kept nodding his head, and finally asked Changning.

"Lord Changning, what do you want to eat? All of these adults have said, they have all of them. ”

"Bring me a bowl of wontons and two chickens."

Changning said casually, seeing that Fu Bo was preparing from the back, he reached into the satchel he carried with him, and wanted to take out a handful of sunflower seeds to swallow, but his fingertips touched a cool thing and took it out casually.

It was the part that the prince had placed on the stone table.

Changning was a little excited and wanted to put the parts back, but Leping suddenly asked.

"I've heard that because of this part, the Asuka Battalion is going to retreat."

Changning raised his eyebrows, "Don't talk nonsense outside about these military aircraft events." ”

"But this time it's true, we can't find such materials, the birds are much worse than the Tessies, there is no way, the bird camp can only retreat."

As he said this, Fauber had already come out of the back kitchen with two small dishes.

"Two plates of hors d'oeuvres, please try a few adults slowly."

Putting down the side dishes, Fu Bo's eyes noticed the parts in Changning's hand, and hurriedly dissuaded him.

"Lord Changning, don't you dare to use that thing in your hand as a saucer, if you use it for a long time, it will die."

Changning raised his eyebrows: "Fu Bo, have you ever seen this thing?" ”