Now, Belyakov proudly took it out: "Yes, this slide rule has been with me for more than 30 years, and just now, I wanted to calculate the matching data of the engine." ”

For aircraft designers, the slide rule is a skill that must be mastered, and it is the equivalent of an analog computer, generally consisting of at least three straight bars, aligned in parallel and locked with each other, so that the middle bar can slide along its length relative to the other two. The outer two are fixed, so that their relative positions remain the same.

These have scales on top of them, and when the middle starts to slide, you can find the result from the alignment line, which can not only calculate addition, subtraction, multiplication and division, but also perform all kinds of complex operations, such as square roots, exponents, logarithms, and trigonometric functions.

For aircraft designers, it is often necessary to perform various calculations, even rough estimates, and in this case, the slide rule can be used.

However, this is already the technology of the 70s, and after that, with the development of electronic technology, this tool has been discarded in China, as long as there is a not very expensive price, you can buy a variety of calculators made in Japan, with a monochrome LED display on it, which can perform various mathematical operations, simple and clear.

Here, many places have actually begun to lag behind, and even Qin Feng can feel this backwardness.

Everyone sees it differently, in the eyes of General Lin, this is obviously another opportunity, since the other party doesn't even have a calculator, the next time they talk again, you can give them a batch, in this way, there will be more goodwill, and it will be easier to negotiate.

In fact, when designing the MiG-29, the Mikoyan Design Bureau, of course, also used the method of computer design, but these old designers have become accustomed to using the tools at hand before, and this slide rule, like the infantry gun, is always on the side, and can be used at any time when needed.

It's just that if they can have a calculator, then of course they are quite happy, and the calculator is much easier to use than the slide rule.

Now, Qin Feng has diverted the topic, as far as China is concerned, Tu Lao has been engaged in the Super Seven project, which has been carried out for several years, and the general shape has been determined, as an export-oriented fighter, its engine and avionics are to be purchased from the world, as long as these can be determined, the entire fighter can be made, and the project of the Mikoyan Design Bureau is their own project, if this cooperation, it will become the Mikoyan Design Bureau, so, from Tu Lao's heart, I don't like to use the other party's plan.

In the United States, Grumman wants to take the lead, and if the Mikoyan Design Bureau comes, the Mikoyan Design Bureau is probably also quite dominant, and Tu Lao's attitude is also quite firm, and this dominance, of course, has to come by itself.

Tu Lao's eyes looked at the engine casing again, in fact, Tu Lao had already asked last time, this casing is so big, because this is originally something made in the seventies, and it has been used until now, but it is still planned to be used in the future, that is, it is not planned to be changed in the future, if it is to be changed, it is also a matter of the design bureau, and it has nothing to do with the factory.

It can be seen that the factories of the Soviet Union, only production, without any right to speak, and the domestic is very different, Tu Lao relied on hard work, brought the 132 factory into a major export enterprise, in the Soviet Union, it is absolutely impossible to appear.

"From here, we can see more clearly that this aircraft has almost no rear fuselage." Everyone continued to study the aircraft that was being assembled.

If you look from the front, you can see that the shape of the MiG-29 is advanced and very rounded, and from the back, it is flattened, the two engines of the aircraft are in the two engine compartments on the left and right, between the two engine compartments, there is only a fairing, there is no fuselage at all, as for the transmission of flat tail and double vertical tail loads, it only relies on the external side wall of the engine compartment and a cantilever beam at the vertical tail part to form two box-shaped beams. It can be found that the Soviets may not be very advanced in some technologies, but their ability to integrate is very strong.

Although they are all pushback to install the engine, but the specific installation is still very different, the engine compartment of this aircraft has an open door below, and there are three steel cables directly inside, and the engine can be lifted into it through these three steel cables with a simple crane, which can also see a characteristic of the Soviets, many times, it can be simple and simple.

Compared with the special car with lifting in the West, this place is more like a horse on the horse.

"If it's in the back, bulge up the back, so can you load an extra ton or two of fuel?" At this moment, Qin Feng spoke, and this layman's words immediately attracted a kind smile from the designers of the Mikoyan Design Bureau.

How is this possible? The aerodynamic shape of the aircraft, how many times has it been blown in the wind tunnel to come out, you said it is simple, to destroy the shape of our good lifting body, just to install an extra fuel tank in the back of the aircraft? This kind of aircraft of ours is a front-line fighter, and it doesn't need so much fuel, I really don't understand, what is the use of how much range you have been insisting on? Which of the fighters you are equipped with now has a big range?

Looking at the smiles of these people, Qin Feng scratched his head and didn't say any more, that's right, in front of these masters, he is indeed a layman, maybe he brought it up himself, just to make them feel funny, right?

Everyone continued to walk forward, the fighter in front of the final assembly, the progress was faster, the entire body had almost been assembled, only the front nose was left, now, several workers were installing the nose, facing this nose, Qin Feng's eyes lit up again.

The N019 radar is a special radar for the MiG-29, this radar comes from the Soviet Instrument Manufacturing Research Institute, and the technology used on it is the technology of the Soviet Union in the eighties.

Speaking of radar, we must not just look at the antenna in front of the radar, it is a whole, just behind the antenna, is roughly a polygonal section of the electronic equipment, these are combined together, in the back of the electronic equipment, there are radar transmission, reception, modulation, processing and other functions, in the outside of the metal sheet, should be used to provide heat dissipation capacity.

Now, this radar is being hoisted up and stuffed through the nose in front of the MiG-29, the radome of the nose of the MiG-29 is not installed, and at the same time, a large opening has been opened on its nose and in front of the cockpit, so that it can be easily installed.