The sliding is the same as before, but the speed requirements are higher, and what was possible before can be done now!

Qin Feng knows that this difficulty must be overcome, if this cannot be overcome, then the progress of the test flight will have to be delayed, after all, they have been constantly delayed, the project has been cast a shadow [58] shadow, and now this high-speed running project must be solved as soon as possible!

"Yes, yes, the plane is as far back as possible!" Under Qin Feng's command, the tractor pushed the plane backwards, until it reached the edge of the runway, it was considered to stop, the wheels were still on the runway, and the tail part of the plane had been suspended to the lawn area behind, even if it was a distance of three or five meters, it was to be fought for.

Qin Feng circled around the plane, finished the inspection, got on the plane, and in everyone's attention, as before, he was ready to slide.

Now it's a high-speed run, and if you want to reach the maximum speed possible, you need to turn on the afterburner, which can make the acceleration distance as short as possible, so as to leave a longer distance for the subsequent deceleration!

This is also after research, Song Lao and Zhou Lao agreed.

The first time he turned on the afterburner of the third uncle, Qin Feng immediately felt a pleasure that he had never felt before, this is the feeling of a third-generation machine, that kind of slow acceleration, it is not a third-generation machine at all!

The roaring third aunt burst out of orange-red flames backwards, and more than 12 tons of thrust acted on the Jianten, and in an instant, like an arrow from the string, rushed forward!

Accelerate, accelerate!

On the front flat display, the numbers were also beating rapidly, making Qin Feng feel his blood gushing, fifty, sixty, eighty, one hundred!

In the past, when you reached 100, you started to slow down, but now, when you reach 100, you have to continue to accelerate and then pull the lever!

As the speed increased, the lawns on both sides were also rapidly receding, and the end of the runway was also rapidly rushing over, Qin Feng had no time to waste, he was looking forward to pulling the plane up!

One hundred and one, one hundred and two, the plane continued to rush forward, but the nose could not be pulled up anyway!

Qin Feng felt that the plane wanted to raise its head, but before it could be raised, it fell down again, what was going on?

"Slow down, slow down immediately!" Zhou Lao's voice came from the earphones, Qin Feng knew that there was no chance, and if he delayed any longer, he would rush out of the runway!

Turn off the afterburner, push the engine throttle lever to the position of the slow car, put the parachute, and step on the rudder with both feet at the same time as the brake, Qin Feng is now using both hands and feet, and in the scream of the piercing brake pads, the fighter plane stopped more than ten meters away from the end of the runway.

"No, the nose can't be raised!" Qin Feng looked at Song Lao who came over outside and said, with disappointment in his voice, when the maximum speed was reached, it was already one hundred and two, but the wheels in front of him did not get up, what did it mean?

Is it not enough lift? If this is the case, then the problem is big, if the plane cannot fly because of insufficient lift, it will definitely become a joke in the entire aviation industry.

Is it possible? Of course it can't be, Qin Feng believes in Song Lao, Song Lao has led the team for so many years, how could he make such a mistake?

If it's not enough lift, then what is the reason why the nose can't be lifted?

"Old Song, I want to try again!" Qin Feng said.

The test flight was to experiment again and again, find a successful solution, and the fighter was towed to the beginning of the runway, and then began the second and third test flights.

It's the same every time! In the end, Qin Feng took the risk to increase his speed to one hundred and three, and the landing gear in front of him was still firmly on the ground, but he couldn't get up.

"No, the runway isn't long enough!" Zhou Lao said: "Let's think of another way!" ”

On this day, the atmosphere of the entire design team was very low, and a new difficulty was placed in front of him, the previous difficulty, there is a way to overcome it, and now this difficulty, there are ways, but it is too heavy, is it because the runway is not long enough, it will be disassembled and go to the test flight institute?

Back in the dormitory, Qin Feng couldn't sleep.

"Brother Feng, what are you doing?" Tang Gang walked in.

The J-10 has already manufactured a prototype, so the next task is to conduct intensive test flights, and the country has also set up a special test flight team in order to test the J-10, with a total of five people, Qin Feng is the chief test pilot, and Tang Gang is also fortunate to be one of them.

Today's matter, Tang Gang is also clear, he watched Qin Feng's efforts on the runway, but he couldn't help, so it's already night, so it's better to come over and have a look.

"What about you?" Qin Feng asked.

"I'm memorizing data." Tang Gang said.

If you want to fly an aircraft, you must be completely familiar with the aircraft, and when you encounter problems, you must think of how to deal with it at the first time, so as to become a qualified test pilot.

J-10's first flight, just waiting in the back, test pilots in a few months, is to memorize the data, the flight needs all kinds of data, are memorized, once encountered, how to operate, resolve the difficulties in the flight, must be clear, after all, time in the air is precious, a wrong operation, may cause irreparable consequences, all back, but also be able to use flexibly.

When Qin Feng flew the J-7, the dashboard of the first flight fell, after all, it was still a hydraulically controlled aircraft, but it only used stabilization technology, and now the J-10 is fly-by-wire, and the risk of the first flight is greater, so you must be prepared.

"Well, that's good." Qin Feng said: "Then I'll test you, if during the flight, the oil pressure gauge suddenly reads abnormally, what should I do?" ”

"This must be a lubricating oil interruption, a common fault of the third uncle's engine, and the way to deal with it is also very simple, it needs to be put into a slow state first..."

In order to be able to remember these operations, we often use this method with each other, one test, one answer, help each other, remember together, the two of them are like this, you ask me, I ask you, a difficult night, just like that.

When he fell asleep, Qin Feng's mind was still full of countless faults and troubleshooting plans.

After these things have passed, it will become the current problem, and this picture keeps appearing in Qin Feng's mind.

Accelerate, pull the lever, expect to be able to pull the plane up, but the plane just won't look up, what the hell is going on?

This white Jian-10 fighter kept dangling in Qin Feng's head, and the air flow from the tail nozzle was constantly amplified and magnified in this picture.

I know!