The tank rumbled back, and when it stopped, there was one more person on the ground.

That person didn't wear a uniform, after all, those who were engaged in intelligence often had to disguise themselves, so it was not clear who the person who came from the tank was a few people who got off the tank.

"Our tanks, how do you feel?" Dulaba asked Wang Erzhu, his eyes full of anticipation.

At the beginning, it was Wang Erzhu who wanted to test drive the T-80, so Dulaba brought them over, made them feel refreshed, fired more than a dozen rounds of tank guns, and finished all the coach shells.

In this way, you should be satisfied, right?

Wang Erzhu shook his head: "No, although the horsepower of this tank's engine is enough, the speed is too slow, this kind of horizontally opposed engine, it really doesn't work." ”

Wang Erzhu actually said that?

Hearing this, Duraba's face suddenly became a little ugly, saying these words, it was simply a slap in the face of their Morozov Design Bureau, you know, the Morozov Design Bureau, it relied on this to eat, it used to be used to equip the T-64, and then after the job was snatched away by the Kirov factory, it was snatched back with a thousand-horsepower diesel engine, and now, Wang Erzhu actually said that this engine is not good, it is really uncomfortable.

"Erzhuzi, how do you speak?" Qin Zhenhua hurriedly educated on the side: "People use two-stroke engines, which were originally designed to get strong power, I think, you must not be able to drive." ”

Qin Zhenhua is naturally talking the opposite, the two of them are so agitated, so? Duraba's expression also darkened a little.

"yes? Is this horizontally opposed two-stroke diesel engine defective? But? For the T-80 tank, it is already one of the best options. Dulaba explained.

Originally? Is a two-stroke engine used to meet the need for increased power, and at the same time? Also because of the boxer engine? It had to be a two-stroke, otherwise the valve at the top of the piston wouldn't be able to be put in place at all.

However, this engine has not matured for a long time? Glitching? It became a source of nightmare after the T-64 tank was equipped with troops.

Two-stroke engines, there are many flaws.

In the process of air exchange, a part of the gas will be consumed, and other reasons cause its fuel consumption to be much higher than that of a four-stroke engine under the same conditions? It won't be fuel-efficient, compared to gas turbines, of course? It's definitely provincial.

Its oil is injected with the fuel, will the oil be consumed? At the same time, because the cylinder is always very hot? Such? Will the problem of carbon deposits inside the cylinder be more serious? Wait a minute.

These shortcomings plagued this engine, so, for a long time, for the Molozov Design Bureau, in fact, there was a thought.

Just in recent years, they plan to abandon the 6TD engine and develop a new four-stroke engine, and even have a special prototype, but this engine will be much larger and cannot be directly stuffed into the back of the T-80 tank.

It is very interesting that their engine also chooses the parameters of cylinder diameter 150 and piston stroke 160, which is simply the same as the engine now developed by the eastern powers.

Now, although the tank has made a prototype, but there is no loading object, for the Soviet Union's military research and development system, there is no qualified loading object, then it can only be terminated, they have to continue to turn back, and then tinker with their own 6TD engine.

Now, of course, he can't talk to Wang Erzhu about the hardships in this, although he likes this son, he can't ignore the discipline of secrecy, besides, the old friends around him are from the KGB, and he must taboo these.

"Now we are using the 6TD-1 engine, and we are currently developing the 6TD-2 diesel engine, without changing the volume, the power has been increased to 1,200 horsepower, and the performance of this engine will definitely be more powerful." Dulaba said.

"No, it's useless to change it." Wang Erzhu said: "Its torque is not high, this is determined by congenital factors, I guess, its connecting rod is definitely not long enough." ”

Wang Erzhu doesn't usually talk like this, why do you always sing against others now? At this time, Qin Zhenhua was a little puzzled, but he quickly reacted, it should be Wang Erzhu who was venting his dissatisfaction with the other party in this way, after all, the other party did not fulfill his responsibility as a father.

"That's right, at the same diameter, the torque is determined by the piston stroke, and if the piston stroke is not enough, it will inevitably lead to insufficient torque, which is its congenital defect." "After the 6TD-2, we plan to develop the 6TD-3 engine, which is expected to increase the engine by about 200 horsepower, but then it is estimated that the only way to solve it is by increasing the diameter and stroke of the pistons, which will increase the torque, but again, it will also increase the size of the engine," Dulaba admitted. ”

Over the years, the Morozov Design Bureau suddenly found that what they were most suitable for doing was to continue to improve this horizontally opposed engine, which already had six cylinders, and it was impossible to increase one to seven, so they planned to increase the diameter and stroke of the pistons, so as to expand the displacement and further increase the power, but in this way, the size of the engine went up again.

In short, that's a matter of the future, now, the first thing to solve is the maturity of the 6TD-2 engine and the pre-research of the 6TD-3 engine, and then slightly increase the speed, so that it can hold on for more than ten years, as for the situation after more than ten years, who can say for sure?

"This is your old friend, right?" Qin Zhenhua finally diverted the topic, he had already seen it, that person wanted to come to say hello a few times just now, but Dulaba and Wang Erzhu couldn't finish talking, and the big guy was embarrassed to interrupt him, and now, he finally found an opportunity, Qin Zhenhua spoke first.

"That's right, we're good friends, my name is Warisi." The other party stretched out his hand and shook hands with Qin Zhenhua.

The other party spoke Russian, which was not as convenient as Dulaba, so Nie Qianqian acted as a translator on the side.

When translating, he naturally brought some private goods, so Qin Zhenhua understood: "It turned out to be Mr. Valisi, this is the end of our investigation today, now, it's time to find a place to have a drink." ”

When he said this, Qin Zhenhua felt that his heart was trembling, he knew that whether he could achieve the purpose of this trip or not depended on the discussion with the other party, would these people sell everything for the sake of profit?

I think so, otherwise, how can we be good friends? They shouldn't have friends.