Chapter 482: The magic of leading edge mobile flaps

Compared with the date palm country, the holy country is also the main customer of the Han country. Qin Guan has not paid attention to it before, but now, Qin Guan must try his best to promote the cooperation between the two parties. This is also the second big deal of NORINCO!
In the distant sky, there was a rumbling sound. Everyone looked at it and saw a four-engine transport aircraft flying over. The propellers turned to form a line of arcs. The entire aircraft looked smooth. .
This transport plane alone has made many people envy.
C-130, the most outstanding tactical transport aircraft in the Eagle country, excellent take-off and landing performance, huge transportation volume, quite good, Han country has no corresponding transport aircraft at all.
Qin Guan felt the envy of the people around him, and he felt that his shoulders were very heavy, and there were many things waiting for him! Transport aircraft, our side also needs to start research and development, there is still the problem of transporting ten, and so on.
I owe a lot of debts. It has been abandoned for ten years, which is embarrassing.
The holy nation came by a transport plane. After the transport plane stopped, a tall general of the holy nation came out of it.
"Lieutenant General Jamal, welcome to 30 Lipu." After Qin Guan came, he was of course the leader of the Han country. Although he is very young now, his status is recognized.
Lieutenant General Jamal looked at the young man in front of him and listened to the interpreter of Xiucai, his face showed a smile: "General Manager Qin Guan? I have been admiring your name for a long time. I finally saw you this time. I am lucky to meet you."
Holding both hands together, Qin Guan felt a huge force coming from him, this guy actually wanted to try his hand strength?
The opponent is a soldier, after all, after many years of military experience, and Qin Guan, although he is also very strong, is definitely not as powerful as others.
However, if he wanted to test the depth of Qin Guan, he was destined to be disappointed. In an instant, Lieutenant General Jamal felt a flicker in front of him, and the strength in his hand immediately disappeared.
"Mr. Lieutenant General, please here, we have prepared a flight show for you."
If you want to observe the performance of a fighter, of course you have to start from watching the flight show.
Coming from base 6601, Jamal had seen the J-8 flight demonstration, but Lieutenant General Jamal had no feeling for that aircraft. What actions can a typical high-altitude and high-speed fighter plane make? It's not our own dish at all.
As for the J-7, Lieutenant General Jamal is clear. After all, some of the early models have been installed in the air force of his own side. Now, what level can the improved J-7 of Han improve?
From a distance, you can see the J-7 on the runway. At the first glance, it feels more pleasing to the eye.
"Finally the three windshields were replaced." Lieutenant General Jamal said.
This was his first reaction.
The fighters of the Han country before were all three-piece windshields. The front windshield frame was a big obstacle to vision. Sometimes, the enemy aircraft happened to be in the windshield frame. As a result, it was not clear at all. Now, change It has become an overall windshield, and finally can have a better view.
Then, relying on the pilot's eyesight, he saw other things.
"It seems to have added a HUD?" Lieutenant General Jamal said.
Ordinary people's eyesight can only see the overall windshield, but Lieutenant General Jamal is a pilot, and he can already see inside. He can see the front end of the cockpit with a piece of glass, which is the head-up projection screen.
"Yes, we use Marconi's products and have a machine gun hotline, which can aim and shoot faster." Tu Lao explained.
Lieutenant General Jamal knows the effect of the cannon hotline on air combat. Now, seeing the J-7 equipped with advanced equipment, he is naturally quite happy.
He still didn't know at this time that this aircraft had already undergone a completely new change.
Several people from Niu were also present. After a brief meeting with the Marconi staff, everyone sat down and watched the latest J-7 flight show.
The people from Marconi Company are helping the reliability of the avionics on the J-7. During this period, the J-7 was just ordinary flying, and they have not done any special performances. In their eyes, What outstanding performance can this special high-altitude high-speed fighter have?
Jack and others are just joining in the fun.
Test pilot Yu Wenming stepped into the cockpit. He has flown many J-7Es. The improvement in flight quality brought by the double delta wings and front-edge maneuver surprised him. He has already prepared specially. A set of flying maneuvers, intended to be performed for the people of the date palm country. Now, since the holy country has come, let them watch the excellent performance of this aircraft first!
Yu Wenming sat down and the canopy on the top slowly dropped. Think about the previous J-7 and the death coffin that was still in use. Now, it has been greatly changed. At the same time, according to the needs of foreign customers, it can also be equipped abroad. Ejection seat.
Start the engine!
The tail engine did not change much. It was the original turbojet 7. Amid the roar of the familiar engine, the fighter began to roll. Yu Wenming was secretly proud of it. As he pulled the control lever, the nose of the fighter Begin to lift up, and then the will work!
At this time, with the cooperation of the air data computer in the aircraft, the action cylinders of the on both sides began to move, and the were deflected downward by 25 degrees. This is a typical take-off action, increasing lift!
The leading edge motorized flap, as the name implies, is a flap added to the leading edge of the outer wing of the wing. This flap is suspended on the front protruding part of the wing with 4 joints, and the front flap rotates around the axis of rotation formed by these 4 joints. When the deflect downward, it can be seen that the leading edge of the wing deflects downward.
What does this do? Its function, of course, is to increase lift! At high angles of attack, it deflects downwards, reducing the angle between the leading edge and the incoming flow, and the air flow along the upper airfoil surface is relatively smooth, avoiding local airflow separation, and also increasing the curvature of the airfoil.
Now, with the deflection of the flaps, the lift increased, and the distance was a full one-third shorter than the original roll, and the wheels of the new J-7 had already left the ground!
Propelled by the tail engine, the fighter began to climb at a high angle of attack.
This was originally an action that relied on the strong thrust of the engine, but now, due to the increased lift of the flaps, this originally difficult action can be easily realized on the J-7.
From the side just now, no one can see the shape of the J-7 wing. Now, Lieutenant Jamal will stand up from his chair and look towards that side: "You also changed the wing?"