Test flights are still being carried out in an orderly manner.

After the engine start-up was completed, other test items were soon underway, and when all the items of the whole aircraft were tested, it was time for the next test flight.

Skiing.

If you want to fly a fighter, you first need to slide, the take-off speed of the backward second-generation aircraft is relatively high, and it is necessary to slide to more than 300 kilometers per hour before it can fly, so the requirements for tires are very high, and the aerodynamic layout of the third-generation aircraft is advanced, the take-off and landing speed is low, and it only takes more than 200 to fly.

In this way, the speed from zero to more than 200 is divided into three parts, from low to high, which are low-speed sliding, medium-speed sliding and high-speed running.

When testing the engine, only the roar of the engine could be heard, and the whole plane was trembling, as if waiting for takeoff, and now, it was finally going to move on its own power!

Time is very tight, so, the test flight work has been in full swing, the first low-speed run, chose in a morning, when the morning sun shines on the ground, everyone's hearts are looking forward to it, in Chengdu, this kind of weather is too rare, at the same time, this also indicates that their own test will be smooth!

The J-10 fighter was dragged out of the hangar, and the first thing to do was to run at low speed, in which it was equivalent to a tricycle, and at this time, it was necessary to test its flexibility.

Qin Feng wore a brand-new flight suit, carried a new generation of flight helmet, and stepped onto the plane, and the whole person felt a lot more energetic.

In the past, every time I tested, it was in the state of opening the cockpit cover, but this time, I could finally close the cockpit cover, and when the cockpit cover on the top slowly fell, Qin Feng's heart also moved, if he needed to, he could even fly this plane up.

Of course, this is not possible, the test flight must be done scientifically, and only after the three tests are completed can the first flight be planned, after all, this is a brand new fighter.

Looking out through the canopy, you can see that the canopy is so well designed that you can barely see the deformation on the outside.

In the past, the curved cockpit canopy was uncomfortable, because of the refraction of light, after passing through the cockpit canopy, it became a magnifying glass, which distorted everything outside and looked inconvenient, and the curved windshield in front was the same, and now, after complex design and manufacturing, this problem can be avoided.

Start the engine!

If there is no third uncle, then J-10 really doesn't know how long it will be delayed, a qualified engine is crucial to the fighter, and the same is true now, J-10 has this engine, so that it can enter the actual test flight stage in such a short time!

"The engine is fine." Looking at the data on the color display on the right, Qin Feng reported on the radio.

"Roger, throttle opening ten, top speed thirty, start coasting!" The conductor's platform was set up on one side of the runway, with various equipment and a row of chairs, where the personnel in charge of testing sat and stared at the instruments.

The technology of J-10 is quite advanced, a lot of equipment is inserted in it, at the same time as the test flight, all kinds of data are recorded, it is easy to analyze and improve, at the same time, in the system, the principle of the design chief engineer and the chief pilot of the aircraft is also adopted, and now, the chief pilot test pilot has been in place since the beginning of the low-speed taxi.

"Understood." Qin Feng pushed the throttle stick, watching the speed slowly rise, the engine behind him was pushing the plane hard, but the wheels were still locked, Qin Feng's feet left the pedal, and the J-10 fighter slid forward for the first time relying on its own power!

The engine in the tail section is jetting backwards, and the fuselage of the fighter is pushed forward and forward by the reaction force!

Soon, the speed of the front flat display reached the value of thirty, Qin Feng's hand gently pushed the throttle lever, reduced the thrust of the engine, stabilized the speed at thirty, and then, stepped on the rudder on the right.

In the air, step on the rudder, that is, control the rudder surface of the tail, and on the ground, depending on the system, it can be the wheel on one side of the brake, or it can turn the landing gear in front.

Now J-10, is all there, just when he stepped on the rudder, the right tire began to brake, the left continued to rotate, and at the same time the front wheel was also turning to the right, just like that, the scene in front of him followed the rotation, has completed a turn on the ground, from the position of the apron, he slipped over, has been on the runway, so as soon as he turned, it has been aimed at the runway!

The steering of the tricycle was steady, the hydraulic shock absorption of the landing gear was not the slightest problem, and the personnel in charge of the test were very satisfied.

"Go on!"

"Understood!" At the end of the runway, Qin Feng made a few small turns, aimed at the center line of the runway, gently braked the plane, and then, pushed the throttle lever slightly, and released the brakes.

The fighter began to accelerate, ten, twenty, thirty, all the way to sixty, the plane was steady, at this time it had reached the middle of the runway, he stepped on the rudder with both feet, braked to slow down, and then stepped on the left side unilaterally, the plane flexibly turned to the left, left the runway, and he was like this, shuttling back and forth on the runway, according to the designed route, around a large circle.

After he leaves, there are people behind him who will record the data, measure the trajectory, calculate the turning radius, and so on.

"This plane is so nimble!" Seeing Qin Feng driving this tricycle worth tens of millions on it, Zhou Lao, the chief pilot pilot, said to Song Lao.

In the previous fighter, the connection point of the main landing gear behind is in the middle of the wing, so that when the main landing gear on both sides is deployed, the distance between the wheels is quite wide, and the take-off and landing are relatively stable, but the disadvantage is also relatively large, that is, the wing root part of the wing is separated from the front and rear, this part of the area can not be used to mount missiles, you know, the wing root part is the largest carrying capacity, but the result can not be used!

Therefore, the third-generation aircraft are all small three-point landing gear, which directly stretches out the figure-eight, expands the wheel base, and when recycling, it is recovered under the belly, not taking up the precious space of the wing.

The wheel base is much smaller than before, so the steering is naturally more agile and the handling on the ground will be simple.

"Yes, this small wheel base is naturally flexible, but it also puts higher demands on the pilot." Song Lao said.

The wheel base is small, when landing, the horizontal level must be maintained, the deviation is too large, it is easy to wipe the wing, which is also a disadvantage, which requires the pilot to have more exquisite skills.

Low-speed sliding, maximum speed of sixty, verifying the performance of turning, acceleration and braking, etc., this experiment, when it is carried out at noon, even if the curtain comes down, the speed is so fast that Qin Feng is unbelievable, in this case, maybe he will be able to make his first flight in a week!