Closing the book, Qin Feng couldn't help but think, the test flight was so dangerous, why did he keep flying? If you enter an ordinary combat unit, then you will definitely become a technical pioneer in the army by relying on your flight skills, and you will continue to be promoted and promoted, so why do you need to engage in such a dangerous test flight work all the time?

Because, test flight is what I have been fighting for all my life! At the same time, because I know how weak the motherland's aviation technology is, I want to use my efforts to improve the motherland's aviation technology! Let the motherland's fighter technology catch up with and surpass the West, which is what every test pilot is most looking forward to!

I don't know why, Qin Feng's eyes flashed in front of him again, Phantom 2000, Phantom 4000, these fighters are very advanced, and their own side, there will definitely be in the future!

Qin Feng clenched his fists and dedicated his youth and life to the aviation cause of the motherland!

The next day.

"Comrade Qin Feng, we have changed the fuel pump of the fuel tank, so that the power of the oil pump is greater, which can meet the needs of the engine in any situation, this time we must burn the inside of the wing fuel tank first, and when the fuel in the wing fuel tank is burned out, we will burn the inside of the main fuel tank."

The residual oil warning light was lit for this reason, and now everyone is-for-tat, and the problem can be effectively solved, and now, after the improvement is completed, it depends on Qin Feng's test flight again.

"Okay, I hope this warning light doesn't mess with it again." With that, Qin Feng got into the cockpit of the fighter jet.

Closing the hatch, Qin Feng skillfully started the engine, taxied, took off, and the test flight began again.

"The speed is already over nine hundred, and everything is normal."

The earth rushed to his face, Qin Feng pushed the operating stick forward, overcoming the head-up moment, the fighter continued to accelerate, and now it has accelerated to nine hundred, and that situation has not appeared again!

"Nine hundred and five."

"A thousand!"

When the pointer pointed to a thousand, Qin Feng felt that his body didn't belong to him anymore, which was just like those motorcyclists who used their lives to drag racing, as long as there was a slight situation, Qin Feng might not have time to react.

The fighter plane continued to accelerate, and the residual oil warning light never flashed again, and it seemed that the fault was solved again.

Test flight is a process of constantly exposing faults and solving faults, and now this fault has been solved very smoothly, Qin Feng is happy in his heart.

At this time, I saw that the horizon on both sides began to shift, and the fighter actually raised the nose and flew upward!

Qin Feng was stunned for a moment, he wanted to push the operating lever quickly, but found that the operating lever at this time could no longer be pushed.

It's the end!

The adjustment can no longer be adjusted, now the top to the head, indicating that the rudder surface behind has also been deflected to the limit, now, the rudder surface can no longer overcome the head-up torque of the nose, the speed is just over a thousand, and there is still a big gap from the required supersonic speed!

"006 reported that the nose of the aircraft automatically raised and could not continue to maintain level flight." Qin Feng shouted over the radio.

Another roadblock!

The plane returned, and everyone came to the conference room, their faces were ugly.

Level flight, the operating lever has come to an end, so it can't stop the nose from rising, can this subject still be measured?

"Otherwise, this subject will end here." Lao Wang said: "We have already flown to 1,000, which is not bad, which shows that if our fighter pilots want to carry out missions in the future, they will fly at ultra-low altitudes, and they cannot exceed the speed of 1,000 at most." ”

Lao Wang has always advocated the end of this test flight subject, on the one hand, there are many test flight subjects, you can't waste time on this one, from whether to test flight, to have tested the flight to a thousand, but also solved a lot of problems in the fuselage, it is enough.

At present, the fighter used for the test flight cannot fly, and the plane that will actually carry out combat missions in the future will not be able to fly, because it is necessary to hang auxiliary fuel tanks and missiles, so that the air resistance will increase and the speed will be smaller.

Forget it, this subject ends here, and it comes to a successful end!

"No way!" Qin Feng said: "We can't fly in level flight, but what if we dive? ”

Dive down from a high altitude, then you can continue to increase your speed, and when you fly to 200 meters, how fast is it?

It is a question of converting gravitational potential energy into kinetic energy, which is to put it simply, exchanging height for velocity.

"No, no, why do we have to do that?"

"We may not do it, but when it comes to the combat units, our pilots may do!" Qin Feng said.

When it comes to combat units, fighter flying and diving is a very common subject, should it be noted in the flight manual that if it is at a low altitude, the dive speed cannot exceed 1,000?

It can't be more than one thousand and five, it's about the same! One thousand, this speed is too small, not even supersonic!

Qin Feng resolutely objected.

"In short, our aerodynamic layout has already been designed, and the rudder surface must not be modified." Lao Wang spoke, he was originally worried about this, in case Qin Feng made such a proposal, since the aerodynamic torque of the rudder surface was not enough, then increase the rudder surface area!

You can't do that, it's almost going to be overturned.

Qin Feng couldn't help but sigh in his heart, in fact, there is no need to increase the area of the rudder surface, as long as it is changed to a full-motion flat tail.

The tail of the ordinary aircraft, on both sides of the level, is the flat tail, most of the front is fixed, only the back section is movable, so that the rudder surface is not large enough, and the efficiency is naturally not high, so the third generation aircraft will rotate the entire flat tail, which is the full-motion flat tail, and the aerodynamic efficiency is greatly increased.

It's a pity that these designers on our side are unwilling to invest too much in new technology, and everyone is already afraid that the untimely death of so many projects is caused by detaching themselves from their actual capabilities and constantly raising indicators.

"Of course, it can't be modified anymore, and our progress also requires that we can't modify it." Qin Feng said: "I mean it's up to me to fly, dive down from a high altitude, and pull it up when it's two hundred meters, although it's not level flight in the full sense, it can be regarded as testing the state of the fighter at an altitude of two hundred meters, and we can continue our low-altitude and high-speed subject." ”

"No, it's nonsense." Lao Wang said: "Swooping down from high in the air, the speed is very fast, what if you can't change it?" And, when changing from dive to level flight, how big is the overload? Will our planes be able to stand it? ”

Lao Wang continued to object, in his opinion, the project has been able to draw an end, isn't this a snake to add to the picture?

"This is not nonsense, the F-18 that the United States is currently testing and flying, this low-altitude and high-speed meter, is how it flies."

"You know?" Lao Wang absolutely didn't believe it.

F-18, the latest carrier-based aircraft of the US Navy, is in the test flight stage and has not yet entered service, how can Qin Feng know?

"I don't know, that's what Yeager said."