When he walked into the conference room, Qin Feng saw the representative of the Pakistani side who walked in from another entrance with the eyes of a pilot from a distance, and the one who walked in the front, the old general with a calm step, was Lieutenant General Jamal, this wise general, and the relationship with the country is quite good, Qin Feng has also met with him several times, and he has great respect for this old general.

"General, you're very welcome." The reception here was led by Manager Sun of China Aviation Technology, and he shook hands with the other party's personnel in turn, first of all, General Jamal.

The general's big hand was tightly clasped with him: "We meet again." ”

Then, there was Tu Lao, then the others, and soon, it was Qin Feng's turn.

"Qin Feng, your skills make us admire very much." General Jamal said, this old general actually remembers Qin Feng, and moreover, he still remembers Qin Feng's confrontation last time!

Qin Feng's heart was also very excited, he knew that this old general had a lot of opportunities, but he didn't expect that he would still remember himself!

"It's a great honor." Qin Feng said: "I look forward to having the opportunity to learn together in the future." ”

In the back, there are also Qin Feng's old acquaintances, for example, Colonel Alam also patted Qin Feng's shoulder, after not seeing each other for a few months, Qin Feng's tanned skin has slowly turned white, which made Colonel Alam tease.

After the two sides had settled down, General Jamal spoke.

"Last time, we conducted a perfect evaluation, and now, the final results have been obtained in China, and the J-7M is in line with the needs of our Air Force, so we will order a batch of J-7M fighters." General Jamal said: "Now, this project is going through the process, and specific contracts will be signed one after another, and we believe that the J-7M will definitely become a powerful weapon to protect our airspace." ”

General Jamal's words made everyone smile, in the past, it was always an experiment, a confrontation, and now, they finally gave a positive answer, they will buy a batch.

However, if you are still going through the contract process, waiting for the approval of Congress and the president, etc., then what is the meeting to discuss now?

The price of the plane has long been determined, and it is the same as the price exported to Jordan, and it is an absolute conscience price for one's own friends.

Now, what is General Jamal doing with such fanfare?

Everyone had doubts in their hearts, but they didn't wait long, and General Jamal had already continued to speak: "However, this Jian-7M is still not our best choice, so we still want to make an improvement to this aircraft." ”

Still want to improve?

The Pakistani side has made the most demands, and it has already made improvements in many aspects according to their requirements.

Tu Lao did not frown, this is the needs of the market, in the past, the aircraft factory produced according to the design drawings, and then forced to the troops, but now it is not possible, now we must listen to the opinions of customers, how customers ask, how they have to modify, there must be no complaints.

Only when the customer's requirements are met, more contracts will be reached, and the road will be wider and wider.

"We know that the J-7M can fight against all models except the F-16, and we want to continue to improve its mobility so that it can really fight against the F-16." General Jamal said.

Hearing General Jamal's words, even Qin Feng frowned, how could this be possible?

No matter how it is improved, it is still a second-generation aircraft, and its congenital design determines its basic indicators, which cannot compete with the F-16, as long as the pilots of the F-16 do not make mistakes, there is almost no hope of victory.

Now, how can General Jamal improve?

Suddenly, Qin Feng remembered again, when he was in Pakistan, he had heard the other party mention that if the J-7M was given a new engine, would it improve the performance a lot?

Change the engine!

That's right, the J-7's backward turbojet-7 engine limits a lot of its performance, its own weight, the thrust-to-weight ratio is not high, and the thrust is not enough, so the performance of the aircraft is not outstanding.

Changing the engine is the best, but also the fastest and most effective solution, if you can replace it with an advanced turbofan engine, you can improve the performance of the J-7 by a lot!

The domestic turbojet-13 is not good, it must be a turbofan, that thing, the thrust is large, the fuel consumption is low, if you look at the world, there are two more suitable, one is the RB199 used in the European Tornado fighter, the other is the American F404, and according to international relations, the easiest to obtain in Pakistan should be the F404!

That's right, it's the F404!

In this era, the most advanced high-thrust engine is the Pratt & Whitney F100 engine used by the F-15 and F-16, because this engine had a lot of reliability problems, so General Electric developed the F110 engine to compete with it, both of which are turbofan engines with a maximum thrust of 12 tons.

Among the mid-thrust engines, the F404 engine is a well-deserved king, and this engine is a fist product of GE.

At that time, soon after General Electric lost to Pratt & Whitney's F-100 engine in the F-15 "Eagle" fighter and light fighter project, it was not discouraged and developed the F404 engine based on the YJ101 engine used in the Northrop YF-17, which also had a clear installation object, that is, the Navy's next-generation F/A-18 "Hornet" fighter.

By this time, the F100 engine had already shown a low level of reliability, so GE focused on reliability and cost reduction rather than performance when developing this engine.

In the early days, the engine took more than a thousand hours to overhaul, and frequent throttle changes did not cause any problems, the compressor did not stall, the cost was only half that of the F100, and the fuel consumption rate was also very low.

The United States has used its own aero engine to demonstrate the world's first technology, and its performance in all aspects has made other countries look up to it.

Although it is not to improve performance, this is also a great improvement in performance compared with the F100 and its own turbojet-7.

For example, its afterburner thrust is close to the order of 8 tons, and what about its own turbojet-7? It's only 6 tons.

The maximum take-off weight of J-7 is less than 9 tons, and by the time of the air battle, it has long been reduced to less than 8 tons, which means that if the F404 is replaced, the J-7 will directly soar the thrust-to-weight ratio to more than 1, which is stronger than the climb of J-6, and it will never be slow again!

Just when Qin Feng was guessing this, sure enough, General Jamal introduced again: "Specifically, it is to replace the American F404-100 engine." ”