A few days after returning to Datong, Zhang Yunfei is still working in the headquarters as usual, and now, the industrialization construction of Datong is in full swing, several factories are starting construction at the same time, Zhang Yunfei is also busy with official business, many things, Zhang Yunfei must grasp the general direction, after all, Zhang Yunfei has more experience in a lifetime, and his vision is very human.

Just as Zhang Yunfei was at the headquarters, carefully thinking about the next development plan of the base area, suddenly the political commissar Fang Zheng walked in with a spring breeze on his face, and said to Zhang Yunfei with a smile on his face: "Division commander, the first batch of twenty cannons of the heavy artillery factory has been rolled off the assembly line. ”

"Oh, so soon, let's go check it out." Zhang Yunfei also said happily.

After returning from Yan'an, the first thing Zhang Yunfei did was to go around the factories to understand the progress of the construction, and the construction of each factory was progressing very smoothly.

Under the guidance of so many technicians and experts, and under the free labor of thousands of little devils, the construction of various factories is very fast.

At present, oil exploration has been completed, according to the report of the Jewish expert Wiesel, the oil stock in Shiwan Village exceeds 3 million tons, which is currently being exploited, the first oil well was drilled a few days ago, and the refinery in the southern suburbs of Datong is also under construction.

The construction of the car plant, the installation of equipment and production lines have also been completed, and it is estimated that the first self-produced car will roll off the assembly line in two or three months.

The construction of the plant of the armored vehicle plant has also been completed, production equipment is being installed, and the first batch of armored vehicles and tanks will definitely be produced this year.

As for the aircraft factory, the construction of the airport and the construction of the factory building have just been completed, and some production equipment is still being manufactured, but the design of the aircraft has been carried out ahead of schedule.

The heavy artillery factory that Zhang Yunfei was looking forward to was making the fastest progress; just after returning from Yan'an, when Zhang Yunfei went to inspect the heavy artillery factory, the first batch of 20 155-mm heavy guns was almost completed.

Unexpectedly, less than a week after returning from the inspection of the heavy artillery factory, the first batch of 20 heavy guns was manufactured and rolled off the production line.

Zhang Yunfei and Political Commissar Fang Zheng respectively boarded two jeeps and galloped towards the heavy artillery factory in the Huanglongxia Industrial Zone.

At present, the four-lane cement highway from Datong to Xinan County has been almost completed with the "efforts" of thousands of little devils and nearly two months of "hard work", and almost half of the more than 100 kilometers of highway from Datong to Xinan County have been paved with cement, and the other half has also built a roadbed and is laying cement.

It took more than two hours for Zhang Yunfei to finally reach the Huanglongxia Industrial Zone, where there are two main factories, namely the Huanglongxia Arsenal and the Heavy Artillery Factory, the arsenal mainly produces guns, ammunition and small-caliber artillery, and the heavy artillery factory mainly produces heavy artillery of more than 100 millimeters.

When Zhang Yunfei arrived at the heavy artillery factory, 20 swarthy 155-millimeter howitzers were already neatly placed in the open space in front of the heavy artillery factory.

Twenty heavy guns, lined up, the cannon body was even wrapped with red silk ribbons, artillery brigade commander Wang Daquan had arrived, and was looking left and right around the cannon. I can't put it down.

Seeing Zhang Yunfei's arrival, Wang Daquan excitedly ran to Zhang Yunfei and said: "Division commander, our artillery brigade this time is really a bird gun for a cannon. ”

"If you want to have a good time, I'll let you shoot a few shots later, and have a good time." Zhang Yunfei also said with a smile on his face.

Just as Zhang Yunfei was chatting happily with Wang Daquan, Toms, the Jewish expert in charge of the design and manufacture of these cannons, also walked up to Zhang Yunfei with a happy face and gave Zhang Yunfei a detailed introduction to the surname of these cannons.

This batch of cannons has a caliber of 155 mm, belongs to howitzers, has an average rate of fire of two rounds per minute, a firing range of 20 kilometers, a cannon weighing 4.5 tons, and needs to be towed by a car, with a maximum speed of 60 kilometers on road marches and 40 kilometers on off-road marches.

After listening to Toms's introduction, Zhang Yunfei nodded with satisfaction, this batch of cannons basically met the requirements he put forward at the beginning.

However, what about the specific surname and quality, we still have to conduct a test launch.

Zhang Yunfei said to Wang Daquan, commander of the artillery brigade: "Immediately arrange for trucks to tow the artillery and go to your artillery training base for test firing." ”

"Okay, I'll arrange it right away, and immediately go to the training base to conduct a test firing of the cannon." Artillery brigade commander Wang Daquan said excitedly.

Zhang Yunfei and Political Commissar Fang Zheng took a jeep to the training base of the artillery brigade first, while Wang Daquan arranged for a truck to tow the 20 howitzers and followed closely to the training base.

Afternoon

At the artillery brigade training base, the 20 cannons have already adjusted their firing parameters, the muzzles of the black holes are pointing obliquely into the distance, and more than a dozen soldiers next to each cannon are ready, and they can carry out live ammunition test firing just after waiting for an order.

More than a dozen kilometers away, on a hill, there are dozens of tire-high mounds of earth several meters high, each with a red flag planted on it, which will be used as a target for shelling.

More than 10 kilometers apart, these cannons, to see whether they can hit the target, will be one of the important criteria for testing the ability and quality of these cannons.

Seeing that everything was ready, Zhang Yunfei asked the flag soldiers beside him to play a flag that could be shelled. Zhang Yunfei's observation point was nearly a kilometer away from the artillery position, and at such a long distance, they could only communicate with each other through the flag soldiers.

Seeing Zhang Yunfei give the order to open fire, several loaders held shells weighing nearly 100 kilograms, quickly loaded them into the barrel, locked the gun door, and then trotted a few steps, a few meters away from the cannon, and covered their ears.

When the main gunner saw that the loading was completed, he decisively pulled the line and sounded the cannon, the cannon made a dull loud noise, and the bulky barrel, under the huge recoil, retreated several meters, but the gun mount was still firmly still, and the thick shell whistled towards the target more than ten kilometers away.

Through the telescope, Zhang Yunfei even saw the beautiful trajectory of the shell, and after flying in the air for twenty or thirty seconds, the shell accurately hit the target more than 10 kilometers away, blowing up a huge crater with a diameter of several tens of meters.

Seeing the power of the cannon, the artillery brigade commander Wang Daquan was surprised again and again, this cannon is too powerful, this cannon will be wiped out, and everything will be blown into pieces.

Zhang Yunfei, who was watching the battle through the telescope, nodded with satisfaction, the power of the cannon was within Zhang Yunfei's expectations, and Zhang Yunfei, who was used to seeing the power of the giant cannon in later generations, was no longer used to it.

Zhang Yunfei knew that the explosion of a 155-millimeter grenade was extremely powerful, and not only would a large crater with a diameter of several tens of meters be blown out on the ground, but within a radius of 100 meters, it would be impossible for anyone to survive, and they would either be blown to pieces or be shocked to death by the huge shock wave.

The twenty cannons, firing them one after another, displayed a huge power that made all the officers and men of the artillery brigade ecstatic, compared with the previous ninety-twenty infantry guns, it was simply a world of difference, and the difference was too great.

Finally has its own heavy artillery, as the saying goes, as soon as the cannon sounds, there are ten thousand taels of gold, Zhang Yunfei is very much looking forward to the power of the cannon on the battlefield.

Wiesel, a Jewish expert who was watching the live-fire experiment, was also full of joy when he saw the outstanding performance of the cannons, and took the opportunity to tell Zhang Yunfei that the second batch of 20 cannons would be produced by the end of this month, and that in the future, every month, the heavy artillery factory would produce 30 to 50 cannons.

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