Chapter 870 New Engine Test Platform

This kind of mounting is not to show the performance of the power system. Although it is relevant, it is still a bit reluctant.

The core is that advancements in structural design have led to an increase in load capacity and a reduction in the dead weight of the aircraft itself.

This resulted in an additional three tons of bomb load being dug out from the original basis.

Reached 9 tons.

Of course, as the KAB1500KR accounts for most of the weight of the mount, it is actually not suitable for use by a single-seat fighter.

Most TV-guided weapons require humans to control the ammunition throughout the entire process, and very few that have image matching capabilities can only reduce the human burden at the end.

Therefore, for a single-seat aircraft, the pilot can only hand over the flight to the autopilot system, and then concentrate on controlling the ammunition by staring at the multi-function screen.

Of course this is nothing during training, but in actual combat there are few times when you can be so comfortable.

Especially in the combat scenarios of the Chinese Air Force, the opponents generally have very strong, or at least air power that can fight.

Thinking of this, Chang Haonan asked Liu Gaozhuo next to him:

"Mr. Liu, do you have any relevant plans for the two-seater model of the J-11B?"

In the previous generation, from the J-11A to the J-11B to the J-11BS, each sub-model actually undertook different technical verification functions, which can be regarded as a small-step development method.

So in the end, we came up with the J-16, a third-and-a-half-generation fighter that looks similar to the J-11BS but is a master of its own.

But today's J-11B, except for the avionics system which is still at the average level at the turn of the century, other parts are completely in the shape of three and a half generations.

Even at the time of design, power and heat dissipation margins have been left for the replacement of radars and flight computers with higher power and higher heat generation.

Once the relevant equipment is developed and developed, just replace it directly.

Therefore, if we build a two-seat model on this basis, it can be used directly as a genuine multi-purpose fighter.

"You mean J-11BS?"

Liu Gaozhuo smiled mysteriously:

"Of course."

"However, we do not intend to make the J-11BS exactly the same model as the Su-27UBM."

"oh?"

The other party wanted to show off, and Chang Haonan was happy to cooperate:

"Tell me more about it?"

Su 27UBM is the two-seater version of Su 27SM.

According to the agreement, Sukhoi and the 601 Research Institute jointly completed the development of an improved single-seat version. Only some airborne equipment differs between the J-11B and the Su-27SM.

However, the contract does not include a two-seat model.

Of course, in principle, there won't be a big difference between the two.

It is nothing more than heightening the cockpit and tail, and imposing slightly greater restrictions on overload at the flight control level.

But obviously, Liu Gaozhuo was ready to order some flowers.

"There will definitely not be any major changes. After all, the ease of maintenance during use by the troops must be taken into consideration."

Liu Gaozhuo replied:

"But we plan to use side stick control on the J-11BS, but we haven't decided yet whether to be more radical and use side sticks at the front and rear, or to keep the front seat unchanged and only change the rear seat to a side stick."

This is indeed not a traumatic change.

Especially after the airfoil control and engine control are all implemented by wire transmission, the joystick sends out electronic signals, so technically speaking, it doesn't really matter where it is placed.

But for human experience, the difference will be huge.

Well-designed side sticks, like the Rafale, give pilots an all-around more comfortable control experience.

And the poorly designed side sticks, such as the F16, are properly operated by experts and are cute killers, so that they were forced to increase the proportion of a two-seater trainer type.

"The other thing is, Mr. Chang."

After a slight pause, Liu Gaozhuo continued:

"Does your aviation development group have any plans to develop vector propulsion technology based on the turbofan 10?"

"this……"

Chang Haonan did not answer immediately, but lowered his head and thought for a moment.

The person asked about the Hangfa Group.

But as the chief planner and the chief engineer of the Turbofan 10, he could not say that he had a single word on this matter, but at least he had the final say and influence.

"It can only be said that this is one of the goals, but there is no clear timetable for it."

In the end, he gave a more conservative answer:

"Even if this round of identification is over, the two basic models of turbofan 10A/B have only completed the design and finalization. For us, the top priority is to prepare for production and finalization, especially to increase the yield rate and output."

"Mr. Liu, didn't you go to the capital to find me specifically for this matter before? No matter how good the product is, it must be able to guarantee production..."

"..."

An aircraft under extreme load conditions cannot perform a variety of flying maneuvers. It is already quite good if it can maintain level flight and the most basic maneuverability.

Moreover, the maximum load and the maximum fuel load cannot be compatible at the same time.

Even a heavy fighter like the J-11B will have limited range.

Therefore, this flight demonstration did not last too long.

The plane circled Beiling Airport and hovered at the edge of everyone's field of vision for a few times before reappearing in the sky at the end of the runway.

From Chang Haonan's perspective, it can be seen that the pilot also specifically drained part of the fuel before approaching the site to ensure that the maximum landing weight did not exceed the standard.

Even so, when landing, the hydraulic structure of the main landing gear was compressed almost to the limit.

Even Chang Haonan could see the wings trembling slightly through the telescope...

After also using up most of the length of the runway, the plane slowly stopped and then entered the taxiway.

It took a few more minutes before it finally stopped on the tarmac, not far from where the ceremony was being held.

Now, other people who don't have binoculars can clearly see the amazing stores under the aircraft.

Especially some comrades wearing Air Force uniforms, their eyes were shining.

What is the concept of a load of more than 8 tons?

It is equivalent to flying with a J-7 hanging on it.

The largest combat aircraft currently equipped by the Chinese Air Force is the H-6D, which only has a maximum bomb load of 9 tons.

In fact, since there are not that many racks, the most suitable mounting solution is 5-6 tons.

And now a tactical aircraft can even show the same level of capabilities...

It was something that would have been completely unimaginable in the past.

Looking at the aircraft in front of them with its claws and claws showing, and even showing some murderous intent, several representatives responsible for planning the identification mission suddenly felt that the identification plan they set seemed to be a bit conservative...

…

Although the ceremony was held in Shengjing, the design finalization appraisal itself was centered on Haojing.

After all, the Flight Test Institute is located here.

Then, based on different environments, we went to several airports with typical climates such as Hailar, Shigatse and Lingshui to complete some subjects.

Therefore, the day after the identification mission officially started, the group was divided into several batches and moved to Haojing together with the three aircraft participating in the test flight.

Chang Haonan himself has actually not been here for a while.

When I came here this time, I found that Yanliang Airport is quite different from a few years ago.

At least the tower in the distance and the runway facilities can clearly be seen to have been renovated.

An IL-76 transport plane painted in the color of a test pilot was parked not far away.

Three black numbers "760" are painted on the side of the fuselage.

And if you look carefully, you can also find that this aircraft is different from the ordinary IL-76.

It has only three D30KP2 engines.

On the inner side of the left wing is a pod with a significantly different shape.

As a reborn person, Chang Haonan certainly knew the identity of this plane.

The No. 760 flight test platform belongs to the China Flight Test Institute.

The function is similar to that of No. 086 modified with Figure 16 in the past.

But compared to the No. 086, which can only hang the engine under the fuselage, this high-wing Ilyushin 76 obviously has more space, and can even support the hoisting of a giant engine with a diameter of 3.5 meters like the GE90.

And more test equipment can also be installed in the cabin.

But in Chang Haonan's impression, this aircraft was purchased by China in 2004 and transferred to Yanliang in 2005.

It is now five years ahead of schedule, which is obviously a big plus for him, the senior management of the Aerospace Power Group.

Therefore, until he stepped off the plane, Chang Haonan's eyes were still glancing in that direction unconsciously.

The person who picked him up on the tarmac was Huang Bingxin, the recently succeeded deputy dean of the Flight Test Institute and dean of the test pilot academy.

He was also the pilot who performed the first flights of the JH-7 and J-8II.

Although by the time Chang Haonan was reborn, he had already reached the upper limit of 48 years old for flying, so the two had never interacted before.

But before the former was reborn, the test hero's deeds had long been declassified, and he had even gone to report to them.

So I’ve heard the name before.

"Hello, Dean Huang."

Chang Haonan quickly walked up to Huang Bingxin and shook hands with him:

"I have admired your name for a long time!"

Before the latter could speak, he was stunned by the enthusiasm:

"Mr. Chang...have you heard of me before?"

In this era, even within the aviation system, there is not much publicity for test pilots.

If we have never participated in a project together, then it is normal for us to be unfamiliar with each other.

"Of course, although I didn't catch up with the JH-7 and J-8II projects, I was fortunate enough to participate in their subsequent models and heard about them from my seniors."

Chang Haonan only used a few words to close the relationship between the two people who met for the first time.

"Then I'm lucky."

Huang Bingxin looked calm on the surface, but he felt happy to be recognized at a glance as a former test pilot:

"It's a pity. If I had been born four or five years later, I probably would have had the opportunity to participate in the test flight of the JH-7A..."

"..."

In fact, when they met just now, Huang Bingxin noticed Chang Haonan's eyes constantly looking away.

Therefore, after some pleasantries, he offered to take the latter over to have a look.

"This is supposed to be a new flight test platform?"

Chang Haonan came to the nose of No. 760 and discovered that the nacelle on the inside of the main wing was actually empty. It was just a tube with two transparent ends, perhaps used for counterweight:

"I've never heard you mention it before..."

"That's right."

Huang Bingxin nodded, and then replied:

"When the Aerospace Power Group was established last year, didn't you say that you planned to develop a large bypass ratio turbofan engine based on the Turbofan 10 core machine?"

"At that time, we considered that when the old 086 platform was testing the WS-10 prototype, the space was already very limited. If the bypass ratio was increased, it would not be able to fit it anyway."

"So in order not to hold you back, we specially bought an Il-976 measurement platform from the Gromov Flight Test Institute last year, and then commissioned Ilyushin to refurbish it. After that, it was modified into its current appearance, and it just arrived last week."

"It can be regarded as a surprise for you..."