The people on the tourist bus behind, after getting off, almost went straight to the MiG-23, for them, the MiG-23 at this time was the most attractive.

Air intake on both sides, which can be used to improve the J-8, variable sweep wing, is the advanced technology of this era, especially the current Shen Fei, is secretly carrying out the J-13 project, for them, this aircraft, is a great reference.

Therefore, Mr. Gu and the others almost went straight to the MiG-23 hangar, and they ignored Qin Feng.

After Qin Feng got out of the car, he ran to the other side.

The hangars on both sides are next to each other, in fact, it is just a passage more than 20 meters wide, on one side of the passage is the MiG-23 hangar, and on the other side, there is the MiG-21 hangar.

Although the MiG-23 is advanced, Qin Feng is not qualified to fly it, he has not flown for a few days, Qin Feng has long had itchy hands, just in the car, Colonel Mustafa promised himself to let himself fly the MiG-21MF here.

With the same green and yellow camouflage paint, when Qin Feng saw the MiG-21MF in this hangar, he couldn't help but say: "It's thick and big!" ”

Qin Feng is quite familiar with the J-7, after all, he has been flying test, whether it is the original version or the current improved version, he can draw a sketch of it by picking up a piece of paper casually.

Compared to the MiG-21MF, what is the difference between the two?

The first difference you can see at first glance is, of course, the air intake cone.

With the different flight speed of the fighter, the amount of air intake required by the engine is different, simply put, the faster the speed, the air does not move, and the aircraft can "crash" into more air. At this time, the air intake needs to be smaller.

This not only satisfies the needs of the engine, but also reduces the frontal area and reduces air resistance.

And when starting on the ground, since the aircraft is stationary, the air intake is the largest.

If you are not particularly pursuing the extreme performance of the aircraft, you can use a fixed air intake, such as the F-16's tow air intake, which is not adjustable, so it can only be most suitable in a certain range.

Although the F-16 can reach a top speed of Mach 2, after exceeding Mach 1.6, the acceleration is weak, because that air intake is too large, bringing more air resistance.

If you want to pursue the perfect air intake scheme at all speeds, you need adjustable air intake, and the MiG-21, a fighter with nose intake, is inside the nose, adding a conical air intake cone.

This air intake cone is movable from front to back, and when it is retracted, the air intake will become larger, and if it is pushed forward, the air intake will become smaller, so as to adjust the air intake demand at different speeds.

Domestic J-7 fighters, the air intake cone in the air intake, is almost shrunk inside, from the side, almost only a small tip can be seen, and now, the MiG-21MF here, the air intake cone is almost completely exposed outside, so it seems, the visual impact is quite strong.

It's thick and long!

"Is this nose for the purpose of installing a newer radar?" Just then, a voice came from behind him.

The soldiers are divided into two ways.

Since this business trip was to pack up the MiG-23 and MiG-21 and take them away, Mr. Gu took a few people to tinker with the MiG-23, and Song Lao should have come to test the MiG-21.

Now Chengfei is improving the J-7II, which is of course not the ultimate product, and the plan of the superiors is to make the J-7 III model out by surveying and imitating the MiG-21MF.

When he first saw the MiG-23, Song Lao was quite excited, so he went over to study it, and now he came here, saw the MiG-21MF standing in the hangar, looked at the huge nose air intake cone, and immediately asked.

In this era, without airborne radar, there is no possibility of taking to the skies for combat.

The fighter with the nose intake can only find a way on the air intake cone, and now the domestic J-7 can only install a small radar rangefinder in the air intake cone, and this kind of large air intake cone can definitely install radar.

"That's right, inside the air intake cone, there is an RP-MA radar with a search range of 30 km." Colonel Mustafa said.

30 km? Hearing the other party's words, Qin Feng immediately felt funny: "I think that our pilots can reach a visual distance of 30 kilometers for fighters." ”

It is inappropriate to talk about how far you can see regardless of the goal, how far is the sun from the earth? Everyone can see it, so, what should we say about this visual distance?

Of course, clear targets, for example, fighters, bombers, of which the bombers are large, can definitely be seen at a greater distance, and fighters, are closer.

Although relatively close, it is appropriate for a pilot with outstanding eyesight to spot a fighter at a distance of 30 km.

"Yes, but we can't operate missiles with the naked eye." Colonel Mustafa said.

Compared with the previous model, the MiG-21MF can be equipped with four AA-2 infrared-guided air-to-air missiles, and four "advanced atoll" radar-guided air-to-air missiles can also be mounted.

The radar in the nose of this fighter is used to guide missiles.

Qin Feng nodded: "Yes, it's good to use to guide missiles." ”

Even if it is an incomparably backward missile, it is enough for Qin Feng to envy, after all, there are almost no qualified air-to-air missiles in China, and everyone can only enjoy playing machine guns.

As for radar-guided missiles, even less so.

"This spine is filled with fuel, right?" Song Lao continued.

Of the two types of aircraft, there are two exterior features that are the most obvious, one is the air intake cone, and the other is the back.

The MiG-21 has a back ridge, which extends from the cockpit to the vertical tail, which can be used to store fuel, and the current aircraft, the back is obviously a lot thicker, it is conceivable that more fuel can be stored inside, which is very useful for the short-legged MiG-21.

"That's right, it's fuel."

"Old Song, Colonel Mustafa agreed to let me test fly this plane." Qin Feng said: "Now, I request a flight of the MiG-21MF. ”

Although the other party agreed, Qin Feng still wanted his side to report, and when he came out, everything had to be commanded.

"I'll give you some advice." Song Lao said that Song Lao can't call the shots, so he has to find Director Tang, the head of this delegation.

Soon, Song Lao came back: "Yes, but you must pay attention to safety." ”