"We have introduced specialized CNC machines." An expert from the 172 factory said: "The processing of this landing gear is indeed a difficult problem, if the accuracy is not high enough, it is easy to leak oil, for our J-7, due to the heavy weight, if the strength of the landing gear is not enough, it is also easy to have problems when landing." ”

Generally speaking, the maximum take-off weight of the aircraft is larger than the maximum landing weight, because the take-off of the aircraft is determined by the lift, and the lift is enough to fly, but when the plane lands, it mainly depends on the bearing capacity of the landing gear, if the landing gear is not strong enough, it will not be able to withstand the impact of the landing at all, when landing, the weight of the design will be smaller, of course, it is okay to hang the bomb, as long as the fuel is consumed to a certain extent, if it is not enough, then fly a few more laps in the sky, There's even an air drain switch.

The processing of the landing gear is a very professional problem, Qin Feng can't understand the specific details they say, what turning tool is used, how to place the fixture during processing, etc., Qin Feng continued to look at this tall and powerful fighter, and found another detail at this time.

On the wing of this plane, there are actually wing knives!

The wing knife is a common structure of MiG aircraft, which is placed longitudinally at the upper end of the wing, just like a knife. Its function is to hinder the separation of airflow.

As the speed of the fighter continues to increase, a special phenomenon will appear, and the air flow will be separated at the wingtips, and at this time, the maneuverability of the aircraft will be reduced, which is extremely dangerous.

In order to control this situation, it is necessary to block the air flow above the wing, which is the wing knife, although simple, but quite practical.

However, it is already lagging behind.

In addition to the wing knife, the other is the pelvic fin, which is something that has been removed from the advanced fighters of other countries, and in the country, for the sake of insurance, it is still added.

Look at the current advanced third-generation aircraft, there is one that still uses a wing knife! Everyone has a simple cut-out delta wing structure, and the gap in aerodynamics is also very large.

Qin Feng also sighed secretly in his heart.

"Actually, if you use a side wing, it's best not to add this wing knife, it's still a regular layout, and it's no problem to add it." Tu Lao on the side also began to evaluate the merits of this product.

In the case of the edge wing layout, although the wing knife can delay the wingtip stall, and at the same time can reduce the asymmetric vortex rupture phenomenon when there is side slip at large angles of attack, which is conducive to maintaining the stability of the aircraft, but the wing knife also promotes the early rupture of the leading edge vortex.

The vortex broke in advance, which reduced the lift coefficient and stall angle of attack, and also weakened the pitching moment uplift problem of the side strip layout, so in the later third-generation aircraft, there was almost no wing knife used, and this thing was cumbersome.

Everyone commented on this plane, and at this time, Chen Lao had already walked up to Qin Feng, patted him on the shoulder and said, "How is it, young man, are you satisfied with our plane?" ”

Although it has winged knives and pelvic fins, this kind of fighter with air intake on both sides and small three-point landing gear still represents the highest level of domestic military aircraft research and development, especially its engine, which is even more impressive, and it is the first turbofan engine of domestic fighters.

"Yes, I'm really looking forward to the early test flight of this fighter." Qin Feng said: "Our navy is in urgent need of a modern aircraft fleet. ”

This fighter is developed for the Navy, and its current mission is to hang the YJ-81 series anti-ship missiles under the wings to attack enemy warships.

"So, how about flying our fighter?" Chen Lao sent an invitation to Qin Feng, after knowing Qin Feng's identity, this is almost inevitable, everyone hopes to attract an excellent test pilot to come over, Qin Feng, a test pilot who has flown a variety of models, is definitely the best choice!

"I do my best, if I can." Qin Feng agreed.

In any case, this is the first domestic turbofan engine-driven fighter after all!

Qin Feng looked at the plane, and suddenly remembered something: "It seems that there is still a final assembly of the bomb six here, right?" Can I go see the Boom Six? ”

In the fighter unit, Qin Feng almost didn't have much interaction with bombers, and since he came this time, of course, he hoped to go and see the H-6.

Of course, Qin Feng went to see the H-6, there was another purpose, the last time they discussed, if they want to be an air tanker, the H-6 is still a good choice.

"Okay, go through the assembly plant here, and you'll be there." A person in charge of the 172 plant said that he took a group of people to see the bombers.

H-6 is now also a standing weapon of the Air Force, although the annual output is not high, but it has been steadily produced, and when Qin Feng walked into the processing plant here, he immediately sighed: "The production workshop of this bomber is really big enough!" ”

Factory 132 is the production of Jian-7, Qin Feng has also shuttled in the factory many times, and has long been familiar with the production of fighters.

And now, the H-6 is also produced in this way, but compared to the J-7's factory, it is much larger here, after all, the H-6 itself is much larger.

At this time, in the huge workshop, almost ten or so H-6s were being assembled at the same time.

"These H-6s were sold to Jordan. It is precisely because of this batch of foreign arms sales projects that our factory can be regarded as relieved, in our entire aviation system, everyone envies the 132 factory, I heard that the year-end benefits you issued last year, let others envy it. The person in charge sighed.

Sell to Jordan? Qin Feng looked at the other party with a surprised gaze, so the other party continued: "Of course, Jordan has no need to use bombers, our batch of bombers is just changing hands through Jordan, the real users are their neighbors, in fact, this is still the inspiration you found from the sale of Jordan's J-7 fighters." ”

Sell to neighboring countries? A map appeared in Qin Feng's mind, and then he reacted, it turned out to be for that country!

I really have to thank this war for feeding many military enterprises in China, otherwise in the 80s, many military factories were struggling to survive, and now there is a small spring.