For China now, the engine is indeed a hard wound. There is still no problem with ordinary tank engines or anything, after all, the 156 key projects of the Soviet Union to aid China were included in these, and tank production was provided from beginning to end with all the technology.

Aircraft these aspects too.

As for the ships, the Soviet Union's own ships were not very good, and by now, the American aircraft carriers were about to cover the entire seas of the world, and the Soviets did not start building a single aircraft carrier. But their nuclear submarines are enough to compete with the United States, surface ships or something, that is, to get some big destroyers.

Khrushchev even believed that in the event of a nuclear war, huge naval ships were nothing more than iron coffins floating on the sea, but the Cuban Missile Crisis made the proud polar bear realize that the lack of large surface ships with only underwater nuclear submarines was definitely not a good thing for the Soviet Union.

Thus, the Kirov, the final work of a super-surface ship at the peak of the Soviet Union, appeared.

The Kirov-class missile cruiser has a standard displacement of 19,000 tons, a full load displacement of 24,300 tons, a total length of 252 meters, a waterline length of 230 meters, a width of 8.5 meters, a draft of 9.1 meters, and a maximum speed of 30 knots.

This is a mythical super cruiser, the ship should be classified as a cruiser according to the conventional classification, but because of its incomparable firepower and super combat effectiveness, Western military strategists are classified into the ranks of "battle cruisers" that should have disappeared in this era, so it is also called "the resurrection of the battle cruiser".

However, the construction of such a war monster was only begun in 1968 by the Soviet Union.

At the beginning, the Soviets could only build small boats, so the republic also had the ability to build small boats and submarines. However, for large surface ships, there is no technical reserve at all, and this is the technology that the Western camp has blocked the socialist camp most severely.

If China wants to develop, Liu Yijiu has been thinking seriously for a long time, the navy. It must be put last to develop.

In addition, the security of the territory and airspace of the republic is ensured first, and only then can the issue of territorial waters be considered. There is no way around this, and a country as powerful as the Soviet Union can only conduct research in this area in the end. That's basically a national effort.

Especially such an aircraft carrier as their Kuznetsov. Before the collapse of the Soviet Union, only such an aircraft carrier was built, and Russia had only such an aircraft carrier many years later.

And the Varyag, although 70% has already been built. In the end, due to the collapse of the Soviet Union, it could no longer be built.

Later, after Russia's economic situation improved and the politics stabilized, in the face of the hope of the presidents of Russia and Ukraine to continue to complete the construction of this aircraft carrier, the director of the Ukrainian Black Sea Shipyard Makarov said to the two chiefs with tears: "It is impossible to complete the construction of this ship again, unless we can give him a strong Soviet Union, and let the nine ministries of industry and tens of thousands of factories in dozens of industries in the fifteen union re......publics to re-support them."

The powerful USSR, after the collapse there was no way to build this. Liu Yijiu naturally did not think that on the basis of the current republic, when the country did not have enough financial resources, he alone could allow the republic to build a powerful navy.

Therefore, he can only honestly engage in all kinds of basic research and slowly complete the supporting facilities.

Motorcycle engines, that's the basics.

Many years have passed since the founding of the Republic and into the 21st century, and all domestically produced equipment has had heart disease. The J-10, J-20, and J-31, which make the Republic proud, are all foreign hearts used! Turbofan ten. After more than 20 years, there is still no way to fully meet the requirements of use......

Turbofan Fifteen, that also took more time......

Although the engine of a motorcycle has nothing in common with an aero engine, it can train a lot of industrial talents for the Republic.

Engines specialists.

When people who know the first district are working on small engines. Liu Yijiu proposed to use all-aluminum materials for testing, develop small motorcycle engines, and accumulate experience in this way.

It is not very likely to expect that the country will start working on turbocharged engines at this time.

As for the 2.0L turbocharged engines being developed by the Swedish SAAB Saab company in the base, Liu Yijiu still doesn't know where they are, and he usually doesn't have time to get them anyway. Didn't ask much about it.

Now, they have to use the engine, and they have to work on it.

"Director Liu, are we going straight to the four-stroke engine or the two-stroke? Will an all-aluminum engine have any bad effects due to the lack of aluminum performance? Guo Hong still has a certain understanding of motorcycle engines.

This thing, it's not like it's just coming out.

If the Ninth Academy Base only provides them with some people and technology, it is impossible to produce a sample car on the National Day.

This is what they said at the beginning, "If there is a difficulty, you have to go up, and if there is a difficulty, you have to create a difficulty." Others say that there are difficulties to overcome difficulties, but people in this industry, in order to show that they have always worked hard towards higher technology, have changed this sentence to create difficulties without difficulties.

There is no difficulty, which for them is an ordinary technical difficulty. And creating difficulties means that they need to achieve higher results on this basis.

"Both two-strokes and four-strokes have their own advantages and disadvantages. In the current situation, which one do you think is more appropriate for us to use? This is also what Liu Yijiu is struggling with.

The engine crankshaft rotates every revolution, and the piston reciprocates two strokes to complete a working cycle, and the engine is a two-stroke engine; Every two rotations of the engine crankshaft, the piston reciprocates up and down four strokes to complete a working cycle, and the four-stroke engine is the four-stroke engine.

The working cycle refers to the working process of the engine composed of air intake, compression, combustion expansion (work), and exhaust stroke.

"The two-stroke is currently more suitable for us, with smooth rotation, no valve, fewer parts, easy maintenance, and cheap; And the shortcomings are also obvious, fuel consumption, lubricating oil consumption, slow and unstable ......" Liu Yijiu said what he had learned. "Four-strokes work reliably, efficiently, and have good stability. Wide range of rotational speeds from low to high speeds; Moreover, the two-stroke engine has the same blow-by return loss, low fuel consumption rate, and can develop high-power engines, but the disadvantages are also obvious, the cost is high, and the maintenance is inconvenient......"

The advantages and disadvantages of both types of engines are very obvious.

Liu Yijiu obviously didn't want to waste too much money on this.

He's going to have to spend money on helicopter engines, car engines, and even their missile engines, and they're going to have to pay for that.

"What's the matter, do these engines cost a lot of money? Let's get two kinds of engines, one is an ordinary displacement, and the other is a high-power engine with a large displacement......" Zheng Hao is now wealthy, and when he saw that Liu Yijiu was entangled, he immediately said with a domineering heart.

As a result, it attracted Liu Yijiu's eyes.

"We won't decide on this matter for the time being, you guys will do the other things first. I'll discuss it with other experts after I go back...... "Liu Yijiu didn't say that both engines were made.

Zheng Hao, this guy is a psychopath, for a little oil money, he can't do it, and now he develops technical projects, he doesn't care about anything at all, and he doesn't ask what the development is for, and he starts to look like an upstart.

"What's wrong? Am I wrong? Zheng Hao was stunned.

Liu Yijiu ignored him, but continued to discuss some of the structure and shape design of the motorcycle with Guo Hong.

And participate in the upgrading of technical equipment in the factory.

In the Jialing Machinery Factory, Liu Yijiu and Zheng Hao stayed for five days before they went to the base. These days, they have discussed with the people in charge of the Jialing factory what kind of equipment they need, and Zheng Hao has even finalized with them which relevant units to cooperate with for the various odd companions they do not produce.

They belong to the Fifth Machinery Department, in line with the idea that fertilizer and water do not flow into the fields of outsiders, and in the end, each supporting unit is found within the Fifth Machinery Department, and it is much easier in terms of deployment.

Zheng Hao is very shrewd in this regard.

Find other subordinate units of the Ministry of Machinery Industry to match, which is obviously troublesome, and it is not possible to find them, but also to find their chief department, and then find the relevant departments of the Ministry of Machinery to coordinate with them. In the own department, everything is easy to say.

"Xiao Liu, let's just get two engines out, isn't it the best? There will be more choices in the future...... "Zheng Hao has never figured out why Liu Yijiu disagrees with this matter.

Motorcycle engines don't require much investment at all, not even a million.

They're going to have a billion on the verge of that.

It's really not interesting to pick like this.

"You think we've got a billion a lot?" Liu Yijiu asked Zheng Hao speechlessly.

Zheng Hao nodded affirmatively.

"Although it seems like a billion is a lot, it is just a drop in the bucket for our base! But you have to think about how many projects we have in our base at the moment. The 336 rocket launcher needs to continue to be upgraded, right? There are three projects of anti-aircraft anti-tank multifunctional missiles, and you have to take into account the 2983 plant, don't you want to get 155 heavy guns? We still have to get tanks and helicopters in our base, and they don't cost money, do they? One billion, it seems like a lot, on these projects, it's not a big deal at all! Liu Yijiu said to Zheng Hao with a serious face.

"If we don't have money, can't we get it from the Americans?" Zheng Hao said disapprehantly.

"Are you an American who burns too much money? How many more do we have in our hands that they need? If we can get the technology on that bomber, it won't be a problem to get another 10 billion from them, the question is can we get it? (To be continued.) )