When Liu Yue woke up the next morning, Ye Xin had already left.

On the way, he was indeed too tired, and when Liu Yue woke up, it was already dawn outside.

After asking, I found out that Ye Xin went to the physical and chemical analysis room of the base to do experiments, just to find out the problem faster.

Liu Yuepin didn't care.

I washed my face indiscriminately, and I didn't have the heart to shave, the conditions here were poor, but fortunately, the hot water kettle above the stove was always boiling in it. This water is melted and burned by shoveling snow.

More people, less water.

They are all big men, and no one cares about their image.

Inside the room, they gnawed on the nest to fill their stomachs, and the group headed outside in full gear.

After dawn, the test base was fully displayed in the eyes of everyone.

There are no buildings, the latest ones are brick and wood houses, and there are few of them, which are the heart of the proving ground, and some of the technical laboratories are located in them.

Outside the houses, two tanks with round turrets with their barrels hanging low and parked silently.

Testers, dressed in heavy tank combat suits, are warming up these tanks.

The temperature in the north is low, and in order for the tank to start, the antifreeze must be heated before it can be started.

"This thing's armor is a lot thicker than the 59 tank we used for experiments. "Xie Jun is knowledgeable.

The appearance of the Type 69 and the Type 59 may not seem to be much different, but there are also quite a few differences.

Improved armor, it will definitely be thick.

"People's latest tank, it's impossible for us to experiment......" Liu Yue, who was in a hurry to go to the field for experiments, didn't bother to see the people of 617 warming up the tank there or something, just wanted to get to the test site quickly.

"Sudden ......"

There was a roar, causing several people to look in the direction from which the sound came.

Tractor!

A tractor with a diesel engine came this way, and it wasn't until he got close that Liu Yue could see clearly that it was Zhu Dingguang.

The experimental base is very large, and the place of residence is still several kilometers away from the test area.

"You just threw this equipment in the snow and ice?"

Even if he was going to do an experiment, seeing these single-barreled rocket launchers and anti-tank rocket launchers in front of him, Liu Yue still felt a little painful.

The warehouse next to it was also a simple wooden house, but all the weapons and equipment they used for experiments were thrown away in the ice and snow outside.

"There are special personnel guarding here, and you won't lose ......"

Wei Guiping thought that Liu Yue was asking this.

What else can Liu Yue say?

Picked up an 80-mm anti-tank bazooka from the ground, covered with ice.

"In such a situation, can the battery still be useful?" Even if he has specially designed it, Liu Yue has no bottom about his design.

Looking at the 107 single-launch rocket launcher next to it, which was also covered with a layer of ice, he was even more worried.

Unlike the anti-tank rocket launcher in hand, the 107 single rocket launcher requires dry batteries to ignite the rocket engine.

"It's useless, I've experimented before. In a low temperature environment, the dry battery drains quickly...... We've got dry batteries with us. Cao Peng pulled out a foam box from a technician's bag.

It contained some dry batteries.

Liu Yue didn't talk nonsense, but directly checked the 80mm individual anti-tank rocket launcher in his hand.

Twist the front and back covers of the launch tube, fortunately, at a low temperature of more than minus 40 degrees, there is no frost around the rocket inside the launch canister.

"The sealing performance is very good, there is no freezing, these are all ...... in the experimental report," Cao Peng explained to Liu Yue, "Open the safety of the front cover and launch it directly......

Liu Yue was surprised, cleared the ice from the trigger position, and then reassembled it.

Half-crouched on the ground, he put the 80mm individual anti-tank rocket launcher on his shoulder, and aimed at the target that had been cleared out 400 meters away and painted in bright colors.

This is a rolled steel plate that was specially used to test armor-piercing shells, and they vary in thickness.

"Vice President Liu, that's a 150-millimeter steel plate ......," Cao Peng reminded Liu Yue.

"Smack~"

Liu Yue had already pulled the trigger.

The internal firing pin of the launch canister was installed at the position of the propellant at the tail of the rocket, and Liu Yue, who had been waiting, found that the reaction speed was at least 0.1 seconds later than before.

"Boom~"

The internal propellant effect, the huge pressure broke the tail back cover, and the rocket flew forward from the launch canister for a certain distance before the engine began to ignite and spray a flame towards the target.

All this, without any problems.

"Boom~"

The 80-millimeter rocket fired by Liu Yue accurately hit the steel plate 400 meters away, and a ball of fire exploded on it.

The high temperature at the time of the explosion caused a mist of water to rise on the target.

Taking over the telescope, Liu Yue saw that the target had not been penetrated.

Liu Yue, who didn't believe in evil, fired three more shots in a row, but still didn't break through the target!

"Stop for a moment, I'll go over and see the results. Liu Yue said to a few people around him, and walked in the direction of the target.

In the previous experiments at the base, all the results were very good, theoretically penetrating the 180 mm/65 ° homogeneous steel plate without pressure at all, and now even the vertical thickness of the 150 mm homogeneous steel plate can not penetrate.

At this shooting range, only the rockets of the 002 base are being tested, and there will be no problems.

Cao Peng and several other technicians followed Liu Yue in the direction of the target.

The snow is thick, and it makes it very slow.

It took several minutes for the group to reach the target's location, already out of breath.

It is a steel plate two meters square, 150 centimeters thick.

"Armor-piercing tungsten alloy head nailed to it......"

No need to be reminded, Liu Yue has already seen it.

Four irregular metal pits are distributed far away, with traces of melting steel, and the core of the specially designed armor-piercing bullet is nailed to the middle of the metal pit.

The tail is about the same as the surface of the steel plate.

"The length of the armor-piercing projectile is 105 mm, and the thickness is about 100 mm, taking into account the passivation effect at the time of armor piercing. Liu Yue looked at the tungsten alloy rod that exposed the tail and quickly assessed it.

Only two-thirds of the steel plate was penetrated.

None of the frontal armor of 59 tanks could penetrate through.

"That's the problem......," Cao Peng said with a wry smile, "the power has decreased, and theoretically, all the evidence points to the warhead." There is no problem with the 8701, the Type 70-1 62mm individual rocket launcher and the Type 69-1 we have used to compare, and their power has not changed......"

The two old designs that also use the 8701 high-energy explosives have no effect, so there is no doubt that the temperature is too low to affect the effect of the warhead.

If this is really the case, it is that there is something wrong with Liu Yue's design.

The 107 MLRS had no problems elsewhere, and even the range was not affected, but the combat radius was reduced too much.

"Let's go back! Let's see what happens to Comrade Ye Xin's side. ”

Liu Yue suspected that it was a problem with the charge, but there was no evidence.

When I went back, it was already past three o'clock in the afternoon.

didn't care about eating, so Liu Yue went to the brick houses in the middle to find Ye Xin.

But he was stopped by the guards at the door, even if Liu Yue took out his work card, he was told that he was not a professional in ammunition and was not allowed to enter, which was too dangerous......

In desperation, Liu Yue could only wait at the door.

"Is the result out?" It wasn't until about eight o'clock in the evening that Liu Yue was almost frozen, and finally saw Ye Xin come out.

"There was a problem with the charge. Ye Xin's tone was full of suspicion, "There must be something wrong, there is no problem with other units, we are 8701 ...... produced in strict accordance with the formula"

"Our own 8701?" Liu Yue seemed to have grasped something, but he couldn't catch it.

"That's right, the rockets produced by the base are all 8701 produced by ourselves, if there is a problem with our production, at least 100,000 rounds of 107 rockets will be scrapped......" Ye Xin didn't dare to think about such consequences.

Inside the base there is a workshop specializing in the production of high-energy explosives.

Of course, it is not workshop 39, workshop 39 is just producing rockets, and it is enough to charge them with the ratio according to the requirements.

Now the cause has been found.

But this reason seems unreliable.

"It turns out that the No. 4 explosive used in 8321 is nitrate, which decomposes quickly when encountering acid, and corrodes the entire explosive greatly, so 8701 came out after solving this problem...... Last year, 8701 won the National Science Conference Award, and there can be no problem...... "Ye Xin feels that this kind of problem is impossible.

Large-scale use has already begun in the country.