The mismatch of the intake flow of the engine is more difficult than the volume of the engine, which means that the air intake channel also has to be modified, indicating that the wind tunnel that you are blowing now is almost all blown in vain, and if you change this engine, you need to re-blow the wind tunnel.

It's a big project.

However, if this engine is really introduced, then as long as you can get your hands, the price is worth it, you will see for the first time a world-class turbofan engine core machine, this engine has removed the outer duct, become a turbojet, thrust-to-weight ratio is more than 7, and now the domestic engine, thrust-to-weight ratio is only maintained at about 5, which is definitely a huge progress.

Of course, the premise is that you must be able to touch it, if everything is done by foreign manufacturers, then you will not get anything.

"We have introduced so much about the engine, in short, this engine is definitely more suitable for you than the F404, with large thrust, high thrust-to-weight ratio, and less fuel consumption, and then, we will introduce you to the appropriate radar."

When Pakistan went to the United States and tendered for bidding from the United States, it was mainly engines and avionics, and Walter Company came here to sell, of course, it was all ready.

"One of them, is the APQ-159 radar." The other party said.

As soon as he heard this radar, Qin Feng frowned, what kind of radar is this?

The radar numbers of the United States are all in order, the previous radars were named according to the APQ, and later, they became APGs, although Qin Feng didn't know how they were named, but the several advanced fighters he knew about were all starting with APGs.

The other party takes this radar, it seems to be very backward, right? Qin Feng searched in his mind, and suddenly found it: "Isn't this the airborne radar of the F-5 fighter?" ”

The F-5 fighter is a supersonic fighter developed by Northrop in the 60s, which is the same era as the Mirage 3 and MiG-21.

At the same time, this aircraft is extremely successful, with various advantages, such as: low price, easy maintenance, good performance, short take-off and landing performance, etc., so after it was produced, it has always been a bestseller, and it has definitely created a miracle.

What miracle? It is simply unimaginable that the United States does not equip itself and specializes in exporting, and it can still be so popular.

Northrop made persistent efforts, replaced the engine with F404, upgraded the avionics, and planned to continue to sell well, but it turned out that it could not be sold, and the number of the F-20 was changed, and it was still not sold, and the market has changed!

Now, this radar is an early model of the radar of the F-5 fighter, that is, at the level of the mid-seventies, and even if it improved the radar antenna with flat slots, its performance would not be much better.

Your own fighter is facing the world air threat in the nineties, and as a result, you can use a radar from the seventies to deal with it?

"Otherwise, it's APG-67, but this kind of radar needs to shrink the antenna before it can be installed in the nose of the J-7."

APG-67 is the latest radar of the F-5 fighter, in short, what he recommends are all products on the F-5, it seems that they have a lot to do with Northrop.

However, this antenna shrinks, what's going on? Could it be that the antenna is huge, the same as the AWG-9 radar of the Tomcat fighter?

Qin Feng's heart was full of doubts, and then, he heard Skoleman continue to speak: "In this way, you don't have to change the nose of the Jian-7, it is the easiest replacement plan, and we are all for your consideration." ”

Hearing him say this, Qin Feng suddenly realized, this Walt Company is too strange, after a long time, they still don't know how far the Jianqi Cp has developed, so they came here and sneered here.

They just heard about the improvement of the J-7M, and they immediately ran over, and they didn't even hear about how the Pakistani side was going to improve, which shows how hasty their preliminary preparations were, which can also be seen that they are very sloppy about this project, such an attitude, can the improvement of the J-7 be realized?

According to the requirements of the Pakistani side, the nose of the aircraft must be replaced, and if this is not changed, it will not be possible to improve the combat effectiveness at all, but these people still think that if the nose is not changed, the radar will be provided according to the plan of not changing the nose!

Tu Lao also heard this meaning, and his expression was very embarrassed.

"The plan you put forward is quite good." Tu Lao said: "We are very moved, and we hope that you will give us more information so that we can study it carefully." ”

Next, it was meaningless nonsense, and the whole meeting only lasted for one morning, and these experts from Walter Company left Chengdu, went to Beijing, and then returned to the United States.

"These people have no sincerity at all." After sending these people away, Qin Feng spoke: "They don't know how we want to change the plane, so they follow over to join in the fun!" ”

As a salesman, it is not to see what good things you have, but to see what customers need, so that you can sell it successfully, what about the other party? It's child's play, I didn't do any homework, so I came here to sell it.

Tu Lao just now suppressed the urge to take out the Jianqi CP model, the other party was not sincere, and Tu Lao would certainly not take out the real thing.

Now, hearing Qin Feng say this, Tu Lao also sighed: "Yes, I think so too, the radar he provided us with is all installed in the current nose, detection range, etc., not to mention all kinds of indicators, I see, even if it is changed to our nose, it is a lot of trouble." ”

These people are definitely not as reliable as the Marconi company, and they really started to do it, then the radar is installed in the air intake cone of the J-7, and there will definitely be all kinds of problems, if it is a big-nosed J-7 3, it will be directly stretched out, and it is estimated that the problem will be a little smaller.

"The engine is good, but it doesn't match at all!"

Everyone is quite excited about their arrival this time, if the advice given is quite good like Grumman, it is also very good, now what? It's just a rush through the motions, playing the role of soy sauce.

Why is that?

Everyone can't guess the reason, but now, since the Walter company is also here, it means one thing, the Pakistani side has almost promoted it in the United States, so they will definitely come to their side soon, and they must hurry up and mature the plan of the Jian-7 CP!

"Okay, let's not get our hopes up too much for Vought Aircraft Company, let's continue to study our project." Tu Lao came back, and then put himself into work, and Jianqi CP was all he had.