Chapter 154: Not worthy of reverse mapping

The lingering spirit persisted, but fortunately, he was used to it. Qin Guan watched the change of scenery outside the window, wondering in his heart, where would he take him?

This 18 type, the biggest possibility, should be in Shen Hoy?

Qin Guan silently recalled this period of history.

This has to start with the pyramid countries.

During the "Sixth Five-Year War" in 1967, Han took the initiative to provide assistance to the pyramid nations. The Pyramid States launched the "October War" in 1973. With the suddenness of the offensive, a major victory in the first battle was achieved, restoring the confidence and sense of honor of the people of the pyramids.

After that, the Pyramid nation purchased 8 MiG-23MS interceptors, 8 MiG-23BN attack aircraft and 4 MiG-23U trainers from Xiong Country.

During this period, the relationship between Han and the Pyramid countries has also continued to develop. Han has supported Egypt morally and materially, providing 10 million eagle yuan in cash, 100,000 tons of wheat and 30,000 pieces of military equipment. .

After the "October War", the Pyramid State and the Eagle State quickly moved closer and gradually distanced themselves from the Bear State.

After the rupture of the relationship between the two sides, the Pyramid countries turned to Western countries, especially buying aircraft from the chicken country.

Naturally, the parts and technical assistance from the bear country also ceased, so the brand-new MiG-23 was grounded after one year of service in the Pyramid Air Force. Two years later, these MiG-23 aircraft were withdrawn from active service and transferred to inventory.

Under this circumstance, Han and the Pyramid countries carried out extensive exchanges and finally made some progress and reached an agreement.

The Pyramid countries agreed to provide Han with 10 MiG-21MF fighters, 2 MiG-23MS fighters, 2 MiG-23BN attack aircraft, 2 MiG-23U combat trainers and 10 AS-5 Kyle "Special" air-to-surface missiles in exchange for Han Guo to provide parts and technical support for its huge MiG-17 and MiG-21 fleet.

The imported aircraft also provided great help to Han State. Han State copied the J-7III all-weather fighter on the basis of MiG-21MF. The MiG-23MS was "technically dismembered" and "step by step" supported the J-8II, J-9, J-13, Qiang-6 and other projects.

Among them, this MiG-23MS, in order to conceal people, was painted into 18 styles.

Compared with the previous aircraft, the biggest feature of this aircraft is the use of variable swept wings, which is a trend of this era, but unfortunately, the ideal is very full and the reality is very skinny.

Although the variable sweep wing has achieved wing efficiency at various speeds and altitudes, it cannot solve the problem of structural overweight, and it will be eliminated in later generations.

At the same time, although Han Guo did not absorb the variable swept-wing technology, it still learned other aspects and the results were transformed into many of its own fighters.

For example, the air intake and folding pelvic fins on the J-8II aircraft come from the MiG-23.

At the same time, two R-29-300 engines were introduced along with the aircraft. my country also quickly organized expert analysis and research. It began surveying and mapping in 1979 and named it Turbojet-15.

The structure of this turbojet -15 engine is a dual-rotor, annular combustion chamber, pneumatic nozzle, high-temperature turbine, and a turbojet engine with steplessly adjustable afterburner thrust. The maximum thrust is 81 kN and the afterburner thrust is 122.5 kN. The thrust-to-weight ratio is 6.5.

It can be found that it is almost the best in turbojet, and its performance is very advanced.

However, due to the problem of fuel consumption, turbojet engines are already behind, and turbofans will be the mainstream.

Now, Qin Guan is thinking about the benefits that MiG-23 will bring to him. At the same time, what role should he play in it?

The flight of several hours passed quickly, and finally, at an unknown base, the helicopter landed.

Until they were sent here, even Chen Rui had no right to go in. Battalion Captain Liu Yuan took Qin Guan and Xiang Jing towards the hangar inside the base.

When the door to the library was pushed, it was indeed the MiG-23 fighter Qin Guan guessed inside. The rectangular and flat air intakes on both sides, the tall vertical tail, and the movable swept wings. These are its most obvious features.

At this time, beside the plane, many people were studying, and one of the spirited old men knew Qin Guan.

"Lao Song, are you here?" Qin Guan asked. This elder was Lao Song led by the 6611 Institute. He had a cordial exchange with Qin Guan when he was at the base near the capital.

"Qin Guan, you are finally here." Old Song said with a smile: "I recommended my superiors. Please come here. This is a top-secret fighter. How about? How about the performance of this fighter?"

The layman sees the excitement and the insider sees the doorway, as long as he opens his mouth, he knows the level.

At this time, following Lao Song's question, many other scientific researchers looked over. What is the talent of this young man whom Song Lao admired so much?

Looking at the Type 18 that was newly painted with green paint on the nose, Qin Guan said: "I think this aircraft is outdated and it is not worth our research. The reverse mapping of this aircraft will be a waste. Time affects our thinking."

When Qin Guan said this, the audience was stunned for an instant.

At present, the main force of the country is still the J-6 and J-7. For this type of aircraft, the MiG-23 is definitely in the advanced ranks. Apart from anything else, its take-off thrust to weight ratio exceeds 1!

And now, the young man Qin Guan was actually telling them that there is nothing to study about this airplane, so he should disperse quickly and wash and sleep.

How can this not surprise others? After being surprised, some people began to question, which green onion are you?

You actually said that this kind of plane is useless?

Qin Guan knew that if he said so, it would definitely attract countless eyes and doubts, but in order to stop everyone from making detours, Qin Guan decided to go all out.

"First of all, it adopts the method of air intake on both sides, which will cause the air intake on one side to be blocked when turning, causing the air intake efficiency to drop rapidly. What's more, the current aircraft pay attention to the maneuverability at high angles of attack, so , The belly air intake is the most suitable way."

First of all, the inlet is not suitable!

The MiG-21's nose has the highest air intake efficiency, and it won't block no matter how it flies. However, in this way, it is impossible to arrange a large-caliber radar on the nose, so the nose must be left out.

Where should you deploy the remaining solutions? Either on both sides, or belly, early aircraft like to be arranged on both sides, but later advanced third-generation aircraft like to be in the belly.

"Variable swept wing, although it looks very beautiful, but the structure is overweight, which adds extra burden to the aircraft, which offsets the advantages of variable swept wing. At the same time, this kind of aircraft also uses manual control. It’s not that the computer automatically controls the swept wing. In a fierce air battle, the pilot has to be distracted to set the wing swept angle, pit."

"And its engine, as everyone knows, the future trend is turbofan engine, because its fuel consumption rate is quite low, but now this aircraft still uses turbojet, all of our aircraft have broken legs. Looking at Western airplanes, there is already a range of more than 2,000 kilometers at every turn. If we spend more effort to imitate this engine, there is no need."