Guan Xiaoyun pulled the red clothes: "What's wrong?" ”

Red-clothed sighed and said, "It's changed, it's all changed, it's not the same as before." ”

Sang Rou comforted: "Hongyi, don't be sad. ”

Hongyi smiled reluctantly and said, "I'm fine, I'm just emotional." ”

After settling the airship, Yuan Fang directly asked Situ Muran for a large area in the north for research cannons, just like in the military factory, build a wall, completely block it, and prohibit anyone from entering, even Situ Muran had to inform in advance if he wanted to enter.

On the day of arrival, after lunch, Tian Erniu and the others were busy dividing the territory and sorting out the station, Yuan Fang drank tea at Situ Muran's headquarters, and asked about the situation of Changhuandao and the Liusang Empire during this time.

In the past few days since Yuan Fang left, Situ Muran was cautious, sending a large number of reconnaissance planes to patrol the sea area every day, all ships and air forces were on standby, ready to fight at any time, but what made him puzzled was that the Liusang Empire and the Wanliu Empire did not come over, but entrenched in the area of Changqingdao and could not come out, the reconnaissance planes sent by Situ Muran to inquire about the situation fought with the other party several times, and the two sides won and lost each other, and lost several airships, of course, the airships of the Dongsheng Empire performed better, this kind of small-scale encounter, It was still the Dongsheng Empire that had the advantage, only losing four airships, while the other party had lost nine planes, and the battle damage was twice as much as its own, this result made Situ Muran proud At the same time, he had to be more careful, because the other party already had the strength to fight with his own.

There is no movement on the side of the Liusang Empire, and the naval fleet that is being built again has been moored in the harbor, as for the military port, it is still under reconstruction, last time Yu Jingqiu did not spare any hands, and threw all the incendiary bombs there, most of the military port was damaged, and it was no longer usable.

In addition to these, there are many more airships cruising in the coastal areas of the Liusang Empire, and they are also worried about the sneak attack of the Dongsheng Empire's air force, and at the same time, they have also built a lot of observation posts on the islands in the territorial waters and the high seas, and it is almost impossible for the Dongsheng Empire to sneak attack in the past.

The two sides can be said to be in a tight battle and ready for sabre-rattling, the Liusang Empire does not dare to attack rashly, and the Dongsheng Empire does not have an absolute certainty of victory, so the two sides are deadlocked.

Situ Muran was very puzzled by this, according to his thoughts, since the location and surrounding environment of Changqing had been determined, he should spare no effort to destroy this airship manufacturing base, if he had been so laissez-faire that the other party continued to build airships, their number of airships would be more and more, and when the other party had a sufficient number of airships, it was estimated that it would be difficult to even protect themselves at that time.

Situ Muran put forward his ideas several times, the first few times, Yuan Fang didn't hear it, or changed the topic, but Situ Muran was just a tendon, and he was entangled, and finally Yuan Fang was really annoyed by the question, and revealed a little news to him, telling Situ Muran that he came here this time to study a very powerful weapon, once the air force was successfully developed, even if the Wanliu Empire and the Liusang Empire had more airships, it would be in vain, and the reason why Yang Xing did not agree to Situ Muran's plan to destroy Changqingdao, It is worried about startling the snake, maintaining the status quo, making the other party take it lightly, and at the same time, it is also to buy more time for yourself.

After Situ Muran figured out this, he felt that Yang Xing was too risky to do this, this was another gamble, and he pressed all his hopes on Yuan Fang's new weapon, if Yuan Fang failed, then there would be no chance to fight back.

Situ Muran's worries are right, if other people are like this, but Yang Xing trusts Yuan Fang 100%, and Yuan Fang himself has enough confidence, even if the development of the artillery fails or the other party starts in advance before it succeeds, Yuan Fang also has a way to deal with it, so many students in the Air Force Academy are not rookies who have just entered the school, and the military factory is now working overtime to produce small boats, and brand new small boats are sent to the academy every day, they are the most solid wall of the empire, and they will firmly keep the enemy out of the territory.

In the next few days, Yuan Fang hid in the temporary base to study artillery, to be precise, to study another gunpowder, the propellant that can push out the running pill, this gunpowder is different from explosives, but fortunately, Yuan Fang has a formula, and only needs to refine it on the basis of the original formula to meet Yuan Fang's expected requirements.

On the day of arrival, Yuan Fang greeted Situ Muran, there might be a violent explosion, and asked him to inform the navy on the island not to panic, it was just a test, but when Yuan Fang's first test caused the cannon chamber to burst, the loud sound still alarmed many defenders on the island.

The formula of gunpowder Yuan Fang is determined to hold it firmly in his hand, and will not give other countries any chance, so Yuan Fang, the raw material of gunpowder, is sent by himself to get it, and it is shipped in batches, and some of the important materials are secretly purchased by Sang Rou and them, so to speak, in addition to Sang Rou and them, even Tian Erniu, Guan Xiaoyun and Hongyi do not know the formula of gunpowder.

The fire of the blacksmith furnace was never extinguished, and the alloy metal ingots that were continuously transported were melted and modified and poured into a thick cannon body according to Yuan Fang's requirements.

Although this kind of iron ball cannonball shell is not as lethal as a modern cannonball filled with explosives, but in this world, this era, it is enough, in air combat, now the main fight is the range of the weapon, as long as it can create a cannon far beyond the crossbow arrow, the solid iron egg is not worse than the lethality of the heavy crossbow at all, and the iron egg has no sharp edges and corners, giving up the armor-piercing ability, a cannon is a big hole, and the damage to the airship is greater.

Several attempts, several failures, Yuan Fang's confidence was constantly eroded, after a cannon chamber burst fragments and scratched the arm of the red clothes who were looking at the excitement, Yuan Fang was completely crazy, he was impetuous, he was wandering around, trying to find someone to vent the depression in his heart, and finally caught a naval soldier who accidentally bumped into him is a burst of scolding, and then returned to his residence in a rage and fell asleep.

Lying on the bed, his head was full of scenes of failed experiments, he couldn't fall asleep after turning over, turned over, kicked the quilt to the ground, pushed open the door and walked out, shouting loudly for Sang Rou to bring him wine.

At sunset, on the beach, Yuan Fang sat on the reef and looked up at the sky dyed red by the afterglow, grabbed the wine jug in his right hand and poured a big sip.

Sang Rou and Jieyue glanced at each other, and the two walked to Yuan Fang and sat down, without speaking, they just sat quietly with Yuan Fang, enjoying the sunset and sea view together.