298 rudimentary and ungodly 125 mm tank gun

"We can accept the conditions you put forward, the Ministry of Aerospace only accounts for 40% of the profits, the relevant technology is open to all of you, and the technical personnel belong to 404, but the relevant technology of the Hongqi-2 air defense missile must be jointly owned by both parties. Just a few hours passed, and Cao Jun's words completely changed.

"That's not a problem. Zheng Yucheng said calmly, "The personnel must be in place within a week according to our requirements!"

"Personnel adjustments, it doesn't take a week. Zou Ping'an also said. "We're worried about the technical ......"

"You're more worried about profit than technology. If you sign a technical agreement, even if you sell it for a million dollars, after deducting the cost, you will only get forty percent of the profit!" Zheng Yucheng did not let go of the opportunity to sprinkle salt on the wound.

Xie Kai looked at the old guy and wanted to kick him to death.

is cheap and obedient, talking about people like Zheng Yucheng.

"Ladies and gentlemen, the Hongqi-2 is converted into a surface-to-surface missile, aside from the cost of each one to the military of 100,000 US dollars, and the cost of replacing the guidance part and fuel tanks, etc., is about 10,000 US dollars, and I quoted about 650,000 US dollars to the Iraqis, and it may be sold at a price of 600,000 US dollars.......

Of course, it was only after the contract was signed that he told the truth.

The corners of the astronaut's mouth twitched.

With this agreement, one missile is sold, and they lose $50,000!

However, they were not single, nor did they say anything, and they did not even offer to re-sign the contract.

"Have you really negotiated with them?" Long Yaohua knew that few words from Xie Kai's kid's mouth were true.

"Tomorrow will be fine. They are here tonight to discuss what will be negotiated tomorrow. Xie Kai said.

Long Yaohua was speechless.

Sure enough, no one in 404 is trustworthy, and if it spreads, it will make the entire military face gloomy.

"The Iraqis talked to them for a day? What exactly did they order?" the Iraqis communicated to the 404 people, and the most worried were the Iranians.

They spent a day in the barracks of the garrison regiment in order to go back and select personnel for training.

When I returned, I heard that the Iraqis had been negotiating with the members of the 404 Management Committee for an afternoon.

"General, I heard that the Iraqis are ready to sign a pre-sale contract with them for 359 tanks, as well as other heavy equipment!"

Alpha, Ihor and the others all frowned.

Can Iraqis do such a thing?

"Didn't the Chinese tank not even come out with a sample?" Ihor asked.

"General, according to our information, when the avant-garde anti-aircraft missiles were not yet finalized, the Iraqis placed an order for 200 missiles, and in the end, it achieved results, adding 800 pieces...... "The left-behind personnel were a little afraid to look at the general's eyes.

They have much, much less money in their hands than those damn Arabs.

They have money, and they are financed by many Arab brothers.

"What shall we do?" Alpha looked at Ihor, who was in the driver's hands.

"Keep an eye on them tomorrow, and when the Arabs place an order, we will place an order! We must not let them take the lead. Ihor took a deep breath, suppressing his anger.

The Chinese are shameless, put them together, they simply can't protest.

"We need to see the live firing of your tanks!" said Harry Moissan, expressing his opinion on behalf of the Iraqis early the next morning, "Whether it is defensive capability or offensive capability, we cannot see the intuitive, only the theoretical parameters...... I heard that your 125 mm tank gun has been prototyped, but I wonder if you can show it to us. ”

"Of course there is no problem. The attack power of ordinary homogeneous armor, and even the attack power of the Chobham armor we developed, can be shown to you!" Zheng Yucheng did not refuse at all.

The 125-mm tank gun developed by the 541 base according to the drawings and plans provided by them has been delivered to the base for a short time, and it was originally waiting for the Pakistanis to come over to carry out live-fire experiments.

The Pakistanis were too slow to come and never experimented.

Now that the Iraqis have put forward this opinion, Zheng Yucheng is not clear about their purpose, which is a strange thing.

"They are going to place an order, and the ability of our tank guns and the protection capabilities of our composite armor will determine the number of orders they place!" Xie Kai suppressed the excitement in his heart and silently prayed that the 125mm tank gun would not have problems.

"Tank guns have been ready for a long time. Wang Guilin looked at Xie Kai's worried face, "Don't worry, the theoretical data shouldn't be a problem, what should be considered now is the service life." ”

"I'm worried about chamber pressure. Xie Kai did not hide his worries at all.

The 125 mm tank gun uses smoothbore gun technology, not the rifled gun that has always been used in China.

Even the tank gun technology imported from Britain is a 105mm rifled gun.

In the future tank, smoothbore gun technology is the mainstream, and rifled guns will definitely be eliminated.

The biggest technical disadvantage of the smoothbore gun is that the requirements for high-precision processing ability are too high, there will be no rifling inside the barrel, and the surface roughness is not only required, but also the processing accuracy is high.

Only high-precision smoothbore guns can maintain a high chamber pressure.

The high bore pressure is revolutionary for the requirements brought by the barrel manufacturing technology and casting technology.

Therefore, the Soviets and Americans began to use 120mm smoothbore guns long ago, and when the 125mm smoothbore guns were erad, China was still introducing British 105 rifled gun technology.

"Theoretical monitoring has been carried out all the time, and there are no problems. At least there will be no problems in the early stage, and everything is inspected in strict accordance with the requirements of the drawings...... The only problem is the life of the barrel, the self-tightening process of the barrel, and the adoption of new artillery steel, all of which are new technologies......" Wang Guilin comforted Xie Kai.

Stinky daughter-in-law, you have to see your in-laws sooner or later.

The Iraqis simply did not give the 404 base time to prepare.

The tank guns produced by the 541 base with the help of 404 did not look like a cannon except for a thick barrel.

When it is transported to the base, even in the cold winter months, the whole cannon is thrown outside in the ice and snow, and it will be dragged back to the heated room every once in a while, and even the temperature will be raised to more than 40 degrees in the heated room.

In order to detect the influence of thermal expansion and contraction on the barrel in the natural environment.

The temperature gradient of the tank barrel tube wall by solar radiation, rain and wind will cause the barrel to bend and the impact point to shift.

At this point, even if the heat insulation jacket technology imported from the British was adopted, the 404 people did not dare to ensure that the barrel of the tank gun with the new gun steel would not be deformed.

For such a long time, no test firing was carried out, that is, the amount of deformation was being detected.

In the depths of the Qilian Mountains, the temperature in winter can be ranked among the top three in the country.

"This is our tank gun?" Xie Kai had never seen the tank gun delivered by the 541, and when Zheng Yucheng took him to see the figure of the 125mm tank gun, he was really disappointed.

Just a thick barrel, the muzzle has a brake, and there is a ring protrusion in the middle of the barrel, in the last barrel position, just a little thicker than the barrel, connected to a simple base, the barrel crank is on the base, there is no gun appearance at all.

"Or else? This is an experimental tank gun. In fact, there is nothing else except the barrel and bolt. Tank guns are not like howitzers and the like, they don't have such a huge system...... "Zheng Yucheng explained, "Look at this barrel, how charming it is! The slender barrel and the shells fired are the enemy's nightmare......

Zheng Yucheng has the idea of artillery, and Xie Kai knows it.

When I saw the simple tank gun in front of me, I was intoxicated, and I didn't know what to say at all.

"This thing, without a turret, isn't scary at all. Xie Kai pouted and said.

His words made the corners of Qin Jinyuan's mouth, who was waiting on the side, twitch constantly, but he didn't know what to say.

Tank guns, before the turret was installed, wasn't that the thing?

"Qin Gong, during this period of experiments, our tank guns have been constantly conducting extreme environmental experiments during this time, how much is the deformation of the cannon barrel?" Xie Kai asked Qin Jinyuan, who had twitched the corners of his mouth, when Zheng Yucheng hadn't figured out how to answer him.

"This is much less deformation than the previous tank gun. In the extremely hot weather of more than minus 40 degrees Celsius and more than 40 degrees, the deformation of the gun barrel is only three denses, which is a technological breakthrough that has never been made in China for so many years!"

"In such an environment, what is the difference between the temperature of the muzzle and the chamber of the entire tank gun?" Xie Kai asked with a frown.

Whether it is too cold or too hot, the temperature of the barrel is different because of the difference in the thickness of the wall behind the muzzle and the breech.

Now it is in the testing stage, and a lot of temperature testing equipment is installed on the entire tank gun, just to test the overall temperature of the entire barrel under various weather conditions.

"At most, the difference is 1.5 °C, the muzzle offset is within 1 dense, and more experiments are needed, equipped with a fire control system, and a smaller amount of correction is required. Qin Jinyuan said to Xie Kai.

"It doesn't matter what you're doing, as long as our tank guns can be advanced. Whether the shot is accurate or not, that is a matter of the fire control system, and now what is considered is the speed of the shell and the service life of the barrel!"

In his opinion, these small differences had little effect on tank guns.

Xie Kai looked at him with a look of contempt, this is the sadness of people who don't understand technology.

"Do you know that the deformation of the barrel affects the accuracy of the design? The different deformations at various temperatures have different secret positions that need to be corrected? If the correction is not in place, how can it be hit accurately? The firing distance of a tank gun is generally two kilometers, and the deviation of a dense position may be a distance of several meters, and the hit rate of the first shot is too low, so just wait for someone to kill it!" Xie Kai's words did not leave any affection at all.