Chapter 131 shows the climb rate of the J-1 in 83 shot

Yang Fenghata did not respond immediately, but held the side of his face with one hand and fell into thinking.

This concern is certainly valid.

At most, only two points of the J-8-3's participation in the exhibition are to find potential foreign customers, and the remaining eight points are all to win over the Chinese people.

But if put together with the Su-27 flight performance, then this effect...

He looked at the deputy chief designer Liu Ming and Chang Haonan who were sitting on both sides of him——

As the latter's role in the August 3rd Project grew larger and larger, the latter's seats in meetings also increased. From the beginning, he could only huddle in the corner of the conference room with Lin Shikuan, but now he can be assigned to a meeting The position at the edge of the table has now become stable at the front.

Although he may not stay in the 83 Project Team for a long time, this feeling...

It’s still cool!

After all, let alone sitting in this position in my previous life, even if I occasionally participated in a meeting, I would only be a spectator at most.

It’s not even attendance.

"I think doing this would be self-defeating."

Seeing Yang Fenghao's posture, Chang Haonan felt that it was almost time for him to speak:

"The Xiangzhou Airshow is not only a matter for Xiangzhou, but also for our entire China. This year is the first time it will be held. It is the time when we need to gain reputation the most."

"On the one hand, the arrangements for the air show have been basically finalized. If there are any temporary changes, it will be detrimental to the exhibition's reputation."

"On the other hand, even if the performance of the two Flankers is postponed to the next day, it seems that it will not have a direct impact on us, but it will not make any difference to those who follow the air show."

"As a late-developing country, we are currently unable to produce an aircraft that surpasses the Su-27. There is nothing to be ashamed of. Going to the air show is originally to show our progress."

"We are timid in the face of our competitors and still have to make extravagant moves. On the contrary, it seems that we are deceiving ourselves and others and are not confident enough."

Chang Haonan's words quickly had an effect.

Those who were able to stay in the military industrial units in 1996 had to some extent a sense of unwillingness to admit defeat.

Now, just in time to catch up with the successful test flight of the No. 04 prototype after the engine replacement, the long-term depression has finally been released, and the morale has naturally improved.

Being stimulated like this again, the effect is immediate.

Some immediately stood up to express their support:

"Chang Gong is right!"

"No matter how good the performance of the Su-27 is, we must not lose momentum!"

There are also some extensions based on Chang Haonan’s analysis:

"Another point is that our J-8-3 and Su-27 perform on the same field, so the pressure should be on Sukhoi's side."

One sentence woke up more people.

"Yes, that makes sense..."

"Really speaking of the performance effect, it doesn't matter if Su 27 wins, but if it's not as good as us, then it will be a big loss."

"..."

In fact, the person who made this suggestion at the beginning did not have any bad intentions. He could only say that caring would lead to chaos, and he really wanted to get the best performance from his own aircraft.

So everyone quickly reached a consensus on this matter.

"In this case, let's determine what items need to be arranged in this 20-minute flight show."

Yang Fenghao said and turned a page of the notebook in front of him:

"After all, ours is still a new aircraft, and it will take some time for the pilots to adapt to it."

The atmosphere in the venue suddenly became lively again.

"If an airplane performs...super maneuverability?"

Although everyone is engaged in aircraft design, they are not actually experts in flying itself.

Not surprisingly, someone immediately objected:

"It would be too risky to use a prototype aircraft that has not yet been designed and finalized to engage in super maneuvers. And I also know that the Su-27 will most likely perform the most classic Cobra maneuver. We cannot use our own shortcomings to attack each other's strengths. We have to think about what we have What unique advantage would it be?”

This speech was obviously very pertinent, so everyone started brainstorming along his train of thought.

"Unique advantages...but the things we are better at cannot be performed at air shows."

"Our ceiling is higher than theirs, but..."

The flight show itself is of a special nature. In order for the audience to watch it with the naked eye, it must be low-altitude and low-speed subjects, and the flight overload cannot be increased too much.

This is really not friendly enough for a high-altitude and high-speed aircraft.

Chang Haonan was also a little troubled at this time. The improvements he had made to the J-8-3 in the past few months were mainly focused on the maneuverability under low-altitude and low-speed flight conditions, allowing the aircraft to fly to 2.4 levels that he could not even imagine in the past. Doubling the speed of sound is actually a matter of piggybacking.

But no matter how good the second-generation aircraft's low-altitude and low-speed maneuverability are, you really have to compare it with the Su-27 with a lift-body design...

That's not the case after all.

While he was thinking about possible performance content in his mind, he looked down at other content arranged in the air show, trying to find some inspiration.

"Su-27 and Su-30 fly against each other..."

In an instant, an idea flashed through Chang Haonan's mind.

"Actually, if I have to say it, we still have advantageous projects..."

"The No. 04 prototype can be allowed to focus on some vertical maneuvers, especially large-angle climbs. After replacing the new engine, the thrust-to-weight ratio of the aircraft will exceed 1 when taking off without weapons."

Of course everyone present is well aware of the basic performance of the aircraft, but some people still have concerns:

"Vertical maneuverability... But the thrust-to-weight ratio of the Su-27 is even higher. It is really better than the climb rate. Unless it goes above 1.5 meters, it still won't be able to take advantage."

"This is true in common sense, but compared to other performances, there is still a certain amount of room for operation in this aspect."

Chang Haonan adjusted his sitting posture and said to the person who just spoke:

"I looked at the performances submitted by Sukhoi. They were all performed by two machines, and the entire performance was very long."

"This means that the two aircraft have to load more fuel when taking off. Moreover, the single-seat Su-27 aircraft has to cooperate with the movements of the two-seat Su-30 during the performance and cannot exert its full performance."

Everyone is an expert, and after Chang Haonan mentioned something like this, they will naturally understand what is going on.

For almost all fighter jets, the two-seat version requires extra weight and space to accommodate an extra pilot and corresponding operation and life support equipment, so its performance will be weaker than the single-seat version of the same model. Some.

Depending on the specific model, the difference is probably between 5% and 10%.

But the Flanker family is an anomaly.

Due to its iconic nose design with a depressed angle, the "rear seat" of the tandem two-seater model Su-27UB is strictly behind and above the front seat, and the height difference between the two pilots is huge.

This design brings unparalleled visibility to the back seat (which is useless in most cases, it is essentially to accommodate the huge radar), but it also greatly increases flight resistance accordingly.

This is not over yet, because the heightening of the cockpit will affect the vertical fin efficiency and directional stability, so the two-seater version has been replaced with a larger vertical fin...

In short, after a lot of hard work, the gap in flight performance of the two-seat Flanker compared to the single-seat version is much larger than that of ordinary aircraft. It is generally believed that it will be about 15% or even higher.

"Not only that, our performance time is relatively short, so there is no need to bring half a full amount of fuel according to the normal routine, and we can also reduce some weight."

"Calculating it from the inside out, at least from a physical perspective, it should be able to produce vertical maneuverability that is not inferior to those two Flankers!"