After the separation, small motor vehicle engines, as well as large trains or large mechanical engines, can be said to be strong soldiers, they are the largest scientific research group, the whole number is more than the original internal combustion engine research institute, only lightweight engine, they have the least personnel, only some people from the internal combustion engine research institute mobilized some people, and some materials, polymer experts.

It seems that this aircraft engine is abandoned, which also makes the aircraft research institute a little frustrated, they do not know that in all three projects, the most high expectations, but also the highest level of technology in the future, is the aircraft engine.

The reason is not him, this is the future of the era of industrial flowers, even in the early 20th century, the Second World War, these two technologies are not simple, in addition to enough kinetic energy, there is another very important point, that is, weight.

In train engines, measured in tons, motor vehicle engines measured in kilograms, aircraft engines, and sometimes, by a few grams, would be a huge step forward.

Unfortunately, this is the future of things, the aircraft for the current fixed Navy, is a icing on the cake, the technology is too high, the requirements are too high, but, there is no substantive role.

In the 21st century, with the development of the automotive industry, especially the development of light vehicles, weight loss has become a key to ordinary automobile engines, a large number of non-metallic materials, or the use of lightweight metal materials, so that small engine weight loss has become common.

However, this weight loss is not the mainstream, and even some small motor vehicles in the future, but also with heavy power to win, in all areas of weight loss, the aircraft is the most important one, especially the fighter, may be a kilogram of weight, for a fighter engine, is the difference between several grades, the weight ratio, and therefore derived from the push and push engine, its various performance, the difference is huge.

Zhao Xin actually, long before the birth of the aircraft, has been the Navy, in all aspects of the performance of the aircraft, has carried out a certain understanding, there are some foundation, this foundation, because of the relationship between the internal combustion engine, temporarily unable to promote the production of the aircraft.

Now that the internal combustion engine is completed, the largest level of the development of the aircraft has been crossed, and the next step is to continuously increase the performance of the internal combustion engine and accumulate various technologies on the aircraft.

For the aircraft, first of all, the power is large, then the weight is light, the rest, it is not important, even if it is a simple, the safety factor is not high, as long as the problem of flying into the sky can be equipped with the aircraft.

In the original history, until the middle and late part of World War I, there is the power of the state, invested in aircraft research, before that, more than ten or twenty years, the aircraft is generally a lover's toy, this from the first aircraft, the Wright brothers invented, they just in a car engine above, for simple processing, made a certain wood, and other simple processing, the plane made.

Now the fixed navy, perhaps, in science and technology, compared with the United States at the beginning of the 20th century, there is a certain gap, this gap is not as big as imagined, in some specific areas, misleading victory.

The development of all aspects of the Navy is uneven, some high, some low, but under the integration of Zhao Xin, in many ways, has a considerable degree of gain, these aspects, if all superimposed above, for the aircraft above, it is a strength.

For example, materials, whether it is steel materials, or polymer materials, or even some coatings, these are the early 20th century in the world have not, the internal combustion engine is just made out, all aspects are not perfect, but there are already many good places, the most critical is, Zhao Xin will organize personnel, study some basic theories of the aircraft lift-up.

For example, according to Zhao Xin put forward these things, weight loss, with aluminum alloy, with polymer composite materials, replace the engine, the original less important material, reduce the weight of the aircraft, this point, until the World War II period, only slowly used to aircraft manufacturing on top, before that, there is no.

There are also some flight theory, for example, the empty layout of the aircraft, perhaps, the researchers will consider which layout is better, but which layout, more aerodynamic standards, the focus is stronger, this point, until the birth of the aircraft for many years, or even into the military sequence, this began to appear.

With the help of Zhao Xin's forward-looking vision, even at the beginning of the birth of the aircraft, it has noticed this point, and even opened up an aircraft research institute, a flight engine research institute, invested a lot of money and manpower and material resources, from the beginning, this aircraft project is a regular army, a national team, with other enthusiasts, there is a significant difference.

For the internal combustion engine segmentation, which is also in the early stage of the emergence of the internal combustion engine, did not do things, Zhao Xin for the future, very understanding, directly in the initial time, the direct subdivision, which is conducive to the development of the engine, each project, can be based on the internal combustion engine, just consider the development direction of the problem, make more transfer, more refined engine.

In the middle, perhaps a certain link to achieve a breakthrough, for the entire field of internal combustion engine is useful, can also be quickly used in other fields.

Previously, because of the Institute of Internal Combustion Engines, there were other important tasks, it was very disappointed, and had to nibble on the prototype aircraft research institute, after receiving the news of the establishment of the Aircraft Engine Research Institute, it was very excited and immediately came to carry out joint research and development.

Aircraft must refer to the aircraft, this point, the aircraft research is a certain accumulation, these accumulation, for the engine, the use is not large, now first, the first thing to set up the shelf, the first problem to be solved is the problem of engine weight loss.

In the consideration of the power problem, as far as possible to lose weight, this weight loss, for the early 20th century in the United States, very difficult, weight loss needs to use relatively light metal, the aluminum alloy did not achieve what circumstances, weight loss is very painful, for steel-based materials, may be a few ounces is a difficult to solve the problem.

However, in the fixed navy, although the largest investment, the highest technical indicators and the other, is steel, but a hundred, under certain circumstances, may not reach a very high level, but for aircraft weight loss, there is no problem.

Aluminum alloy, which until the early part of World War II, only gradually developed, in World War II, the emergence of metal fighters is the mainstream, but there is a part of the wooden aircraft, the reason is very simple, aluminum alloy, is not so easy to master, and in the real outbreak, all kinds of materials, are very lacking, sometimes the use of wooden aircraft is no way.

Although the power is not in the large-scale popularity of the Navy, but some cities lighting electricity and household electricity have appeared, some large-scale power plants have also appeared, which provides the basis for aluminum alloy.

Aluminum is a large-scale electricity industry, the number of electricity, the price of electricity, directly determines the price and output of aluminum, the Navy does not say compared with the 21st century, but the smelting of aluminum is still in progress, and on the basis of this, developed a series of alloys.

These alloys, which have a considerable part, can be directly brought into the engine, according to the specific gravity of steel at about 7.8, while the aluminum alloy is generally between 2.2 and 2.8.

As long as the replacement is more than half, the entire weight can be down almost half, which is a huge improvement for a few kilograms of aircraft that need to be designed.

The Navy is not only the aluminum alloy, in the development of science and technology, especially the development of materials, the Navy has many advantages, from the eyes of the future generations, there are many advanced things in the future, these things, together, it has become the advantage of the Navy, this advantage, is placed on the aluminum alloy, at the beginning of the birth of the aircraft, not even the birth of the time, aluminum alloy has been introduced, there are several generations.

At the same time, on the basis of aluminum alloy, there are also on the polymer composite material.

Aluminum alloy how to reduce, is also a kind of metal, 2.5 proportion, than water is much heavier, not to mention compared with the air, but the polymer composite material, it is not the same, lighter than water is normal, lighter than wood, but also abound, and even some, not to mention compared with the air, but the overall density, in an order of magnitude above, several times, dozens of times the appearance.

Such weight loss is very obvious, and it is possible to lose more than half, more than three-quarters, which is a very likely thing.

Of course, most of the polymer composite materials, are not resistant to high temperature, aircraft engines, and even every engine in the field of internal combustion engines, they are high-temperature operation, those polymer composite materials, once into the high temperature field, will either burn, or will melt.

This, in the future, is also a key problem, to find flame retardant, high melting point of polymer composite materials, it is very difficult.

Of course, in the future, it is also solved, for the requirements of high strength, high heat resistance, can be replaced by metal, or some with advanced materials, other places, not too important, can be light weight of the material, at the same time, some parts that can not be separated, can be replaced by coating, or multi-layer composite structure.

Even now, the Navy's petrochemical industry is not developed, but the card system this advantage, coupled with some extracted materials, or in the field of polymers has some harvest, this part, whether useful or not, a brain will be sent to the internal combustion engine research institute.

In the middle, the prototype is rarely used, the first practical internal combustion engine is not, and the aircraft engine project is still very useful.

At the beginning of the 20th century, these three projects, although together, are slightly separated, but they are truly completely separated, and it will have to wait until the technology is more developed and the classification is more obvious.

But like Zhao Xin, it is directly separated.

Special aircraft projects, this is very important, related to the future development, but also related to the future, the connection between the five continents, only traffic development to a certain extent, the control of the country, will be stronger.

In this case, the lightweight materials, many metal coatings and the like, are incorporated into this project, and in the beginning, the power is not required, only to reduce the weight, increase the thrust ratio, which appeared at the end of the 20th century, or even the 21st century, but it is used here.

It seems that several projects that are not in line with the wind and cattle have been merged together, but they have played a considerable effect, weight loss, for alternatives, it is very easy to achieve, aluminum alloy, and a large number of other non-metallic parts, into the engine project, soon, played a good laugh, the weight of the entire engine, under the premise of not reducing much power, reduced by about 60%.

That is to say, the weight of the entire engine is only a little more than one-third before, which is a huge lift, unsurprisingly, the original internal combustion engine, in about 600 kg, suddenly reduced to 240 kg, which is equivalent to a reduction of 360 kg.

It seems that the weight loss is not large, which is equivalent to ordinary five or six adult men, which is very effective for the entire thrust ratio.

If this is just this, at most, to get out of an ordinary aircraft, Zhao Xin for the engine project point, soon spread to the other aircraft projects above.

In the flight formula, speed, density, and weight are important data for aircraft take-off, and the lighter the weight is, the less the speed you need to take off.

The weight of the engine is only a part, in fact, the biggest weight loss is not the weight loss of the engine, but the aircraft itself.Before the aircraft research institute, just consider the problem of whether there is, in order to strong performance, put the plane sitting relatively relatively heavy.

However, with the internal combustion engine, with this sudden emergence method, in the use of a large number of lightweight wood, under the premise of a large number of use of aluminum alloy and polymer materials, the overall weight of the aircraft is actually reduced by 70%.

This does not mean that the aircraft take-off speed, will be reduced by 70%, but the overall reduction is also very small, according to estimates, and after a certain integration, the use of this engine under the premise, the aircraft take-off speed, actually can be reduced to 60%, that is, about 140 kilometers.

This result, let the aircraft research institute very excited, 350 kilometers, for the power of this era, to achieve, it is still very difficult, but to about 150 kilometers, that is, the acceptable amplitude, perhaps as long as the power and transmission device, the design is more excellent, in the flat road above, to achieve this purpose, is not very difficult.