Chapter 1115

Not only the general manager of that turboshaft engine company is unbelievable, but also the person in charge of other "friendly suppliers" is full of consternation.

The only reason is that the power to weight ratio of wd-63zb turboshaft engine of Tengfei group has reached 9.5.

What does that mean?

Very simple, wd-63zb turboshaft engine can release more power with the lightest weight. In other words, wd-63zb turboshaft engine is a super small steel gun.

No way. If the measurement index of turbofan engine is thrust weight ratio, then turboshaft engine is power weight ratio.

The higher the thrust to weight ratio is, the higher the performance of turbofan engine is. The higher the same power to weight ratio is, the more powerful the turboshaft engine is.

Therefore, as long as enterprises have the ability to produce turboshaft engines, they are all striving for lighter weight and higher power.

The problem is that this way is more difficult than turbofan engine, because due to its unique structure, turboshaft engine has no way to use the fan to increase work, so it can only rely on simply increasing the temperature in front of the turbine to increase power.

However, this method is simple to say, if it is really done, it is one of the most difficult industrial products in the world, not even one of them.

If not, the only person in the world who can produce turboshaft engines with a power to weight ratio of more than 9 will not be the only one who can not even see the taillights of American cars.

Even the former Soviet Union, which claims to surpass the United States in terms of heavy helicopters, is a brother to the Americans.

Because the former Soviet Union is proud of the d-136 high-power turbo shaft engine, although it has 8500 kW of super power, but the overall weight is 1050 kg, and the power to weight ratio is only 7.25.

Although compared with turboshaft engines of other countries, it is very good, but compared with turboshaft engines of the United States, it is still a big gap.

You should know that the t55-l-712 high-power turboshaft engine of the same class as wd-63zb turboshaft engine, the latest model of CH-47D in the United States, has a maximum power of 3276 kW, but its total weight is only 340 kg.

The power to weight ratio is 9.8.

As for the t64-ge-419 high-power turboshaft engine equipped for "super sea stallion", the power to weight ratio is even more amazing 10.2.

On the other hand, the two high-power vortex shafts of the United States are not as powerful as the d-136, which seems to have been crushed by the Soviet Union or the Russians.

However, this does not mean that the Americans can not produce a high-power turboshaft engine such as the d-136. However, due to their own mission requirements, it is not necessary to do so.

Because whether it is "chinugan" or "super sea stallion", the U.S. military requires to be able to take off and land normally on the aircraft carrier or amphibious attack ship. As a result, the size of the two heavy helicopters can not be expanded indefinitely, and they can only choose in some aspects.

In contrast, the Mi-26 heavy-duty helicopter has no similar worries. In addition, the former Soviet Union has a vast territory, and Central Asia and the Far East are sparsely populated. Therefore, the Soviets can only expand their helicopters to meet their own needs.

From this point of view, it doesn't matter which is better or which is worse for us and Russia's heavy helicopters. It's just that their respective needs are different.

However, from the perspective of turboshaft engine, the technical advantage of the Americans is still very obvious. In other words, the materials and technology are ahead of those of the former Soviet Union. In other words, due to different demands, the Americans only prefer the heavy-duty helicopter with smaller size but greater mission flexibility. Otherwise, it will be lighter and more efficient than the d-136

high-power turboshaft engine A bigger engine is really a matter of minutes.

It is clear that, including the former Soviet Union and now Russia, the world turbine shaft engine industry recognized that the United States is the No. 1 turbine shaft engine!

Because of this, turboshaft engines all over the world are benchmarked by Americans. However, the more so, many countries and enterprises feel that American technology is out of reach.

This is true in Europe and South America, especially at home.

In particular, the experts and engineers of the so-called turboshaft manufacturing units really admire and fear the technology of the United States, as well as envy it.

It is this kind of contradictory mentality that leads many domestic turboshaft engine manufacturers to be ahead of time and tall in setting their goals; in terms of specific implementation, they are pro american and pro Russian for a while, and in the middle, they embrace Europe.

All in all, it is repeated horizontal jump, without a down-to-earth long-term plan.

In addition, the leaders of these "friendly businesses" all have tenure, ranging from five to six years, to two or three years, and they are unable to guarantee the continuous research and development of a long-term project.

After all, Xiao Gui and Cao Sui only exist in the historical stories. In reality, if someone really wants to do this, it must not be said to be a straw bag.

Even the minimum business philosophy are not, let you come up to do? It's better to put on a dog.

Because of this, even if a "friend" has a long-term R & D project, the change of the person in charge will lead to twists and turns in the progress of the model.Either the personnel of the R & D team changes, or the model indicators are forced to be modified. Otherwise, how can the level and ability of the new person in charge be reflected?

As a result, the chaotic development of turboshaft engine has become more magical and even mysterious.

In this case, most models have no choice but to die.

However, it's over. The responsible people of these "friends" also have a saying:

what we aim at is the world's advanced level, but the technology of turboshaft engine is too difficult. We admit that this time we have the element of gambling. We benchmarked the model index with XX advanced turboshaft engine of the United States. The results show that China still needs to improve in basic science, material research and system integration.

But even so, we don't get nothing, for example, in the case of engine casings Balabala

In a word, the extremely mature technique of justification has become a routine, no matter which company changes its name.

It's just that the United States is too advanced and we try to surpass it. However, our own foundation is too weak, even the technologically advanced Europeans can't make it. How can we do it if we are not as advanced as the Europeans?

So failure is inevitable.

However, failure or failure, in the whole process is not nothing, or summed up a lot of experience in many aspects, filled a lot of gaps, based on this, we launched a better specific model, leaders ～～～～～～ help us to approve ～～～～

this time, you can rest assured that you can take out the model samples, otherwise you don't have to say, I will I'll make a chrysanthemum wreck!

Anyway, no matter how you do it, the "friends" are always right. The only thing left is for the superior to pay for it. As for what the turboshaft engine is made of, it's not decided by the superior. It's not the bossy president posture that you think, I want me to think.

Under such a model and system, the life of "friend merchants" is called a moistening life. Not to say that they are rich, they will not worry about food and drink. It is absolutely the envy of all industries at present.

As a result, the wd-63zb high-power turboshaft engine of Tengfei group was slapped in the face when the "friend merchants" were all dead and engaged in system bonus, and many "friend merchants" could not find the north.

Don't you say that no one is as good as an American? How to take off the group, you can't?