"Qin Feng, how sure are you of the plan you think?" Just when the fighter plane was being maintained, Mr. Gu on the side asked him in a low voice.

When the meeting was held in the capital, from morning to night, there was no time, this question has been held in Mr. Gu's heart, and it was not convenient to ask at that time, now, everyone is transferring at the airport on the Red Clay Plateau, and there are no outsiders around, Mr. Gu asked in a low voice.

Grasp? Qin Feng showed a helpless smile on his face: "Mr. Gu, how can I be sure?" ”

Who is sure? The MiG-25 has dominated the sky for so many years, even if in 1976 the United States dismantled a defected MiG-25 and studied its structure, but there was still no way to take the MiG-25.

On the battlefield in the Middle East, once the MiG-25 rises to an altitude of 30,000 meters and soars at a speed of more than 25,000, it is announcing to everyone that I am the king here!

In that state, no fighter can shoot it down, even if the Tomcat fighter uses the Immortal Bird missile, it is an invincible existence.

If you want to shoot it down, you can only take advantage of its defenselessness and not fly in the airspace that it is good at, and if you get to that airspace, then you can only stare dryly.

Qin Feng was not sure.

"Although we are not sure, we must not give up because of this, there are no conditions, we just have to find a way to create conditions." Qin Feng said: "Protecting the sky of the motherland is the sacred duty of our Air Force. We must not allow Ah San to wantonly invade our airspace. ”

Test pilots are all within the Air Force, and guarding the motherland's airspace is the mission of the Air Force.

In those years, the interception of the U2 and the interception of unmanned reconnaissance aircraft were all created by force when there were no conditions.

Gotta shoot down!

As he was talking, he heard the voice of the ground crew: "It's ready!" ”

Hearing this voice, Qin Feng once again went down the gangway and climbed onto the cockpit.

They came here to test the operation of their fighters at high altitudes, and although it is only 2,000 meters, the oxygen content in the air has begun to decrease compared to the plains.

The power supply car is next to the fighter, and the thick cable has been connected to the power supply car, and at the same time, in front of the nose, there is a special compressed air car.

"Just use the power cart and try to start." The ground crew shouted loudly.

Qin Feng skillfully toggled the electric doors one by one, and the sizzling sound of the motor excitation came from the tail.

In this era, the aviation engine is the most efficient, and like other piston engines, it cannot turn on its own, and when it starts, it must be turned by other means.

If it is the engine of a large civil airliner, it is started by the ground gas cylinder car with compressed air, and the air turbine starter is used, and some military engines use electric starters, such as the turbojet 7 engine used by the current J-8, and some use gas turbine starters, such as the turbojet-8 engine used by the H-6, the gas turbine starter is actually a small turboshaft engine, sometimes called APU.

In short, no matter what method is used, it is to make the engine spin, and if it is in the sky, it is naturally the engine that is blown by the wind.

Now, driven by the electric motor, the turbojet 7 engine began to spin, and as it turned, the whistle of the characteristic jet also sounded.

Qin Feng saw that the speed had been reached, pressed the ignition switch, and in the combustion chamber, the fuel sprayed from the fuel injector was ignited, and the flame at the tail gradually became larger and redder.

The ground crew stretched out their hand to signal that the engine had started normally!

At an altitude of two thousand meters, there is no need for compressed air from the ground cylinder car in front of you, and the fighter's engine can start normally!

This is to be expected.

After both engines were started, Qin Feng began to take off and land fighters at an altitude of two thousand meters.

It's no different from in the plains, except for a slightly longer run!

On the Red Clay Plateau, everyone stayed for a week, and after the breathing of the lungs had adapted to the altitude of the Red Clay Plateau, they began to continue the transition.

This time, the base where I transferred was at an altitude of 3,500 meters!

Qin Feng piloted the fighter plane and flew with Wang Yang, and the peaks below were already snow-capped.

The altitude of this civil airport is 3,500 meters, but many of the surrounding peaks are more than 5,000 meters high.

The J-8, a high-altitude and high-speed fighter, originally flew fast and had poor low-altitude performance, but now, both of them opened their eyes wide, looking at the mountain peaks below, and at the same time, from time to time, they looked down at the charts tied to their knees.

In this era, the navigation level of domestic air force fighters is still quite low.

Ordinary passenger planes fly fixed routes, and the civil aviation department has a navigation station set up on the ground to constantly take over navigation, but the air force is different, and the air force has to fly into various airspace.

The method adopted by the West is already an inertial navigation system, which begins to constantly monitor the course changes of the aircraft after taking off, and can synthesize the actual position of the aircraft in the computer.

However, domestic technology is far from reaching this level, and the inertial navigation applied in rockets is barely enough, and there is simply no one in fighters.

Everyone relies on the most common radio compass to navigate, and the error is not small, so it is necessary to constantly compare it with the chart.

It's okay in normal times, domestic fighters are all broken legs, the flight radius is small, as long as the ground within the flight radius is clearly marked, then it will not get lost, and now, if you want to fly in unfamiliar airspace, you must be a hundred times more vigilant.

"Notice, after passing the valley between the two peaks in front of you, start slowing down." Qin Feng's ears heard Wang Yang's voice.

"Understood."

Qin Feng replied.

They had to slow down in advance, otherwise, the short runway at the target airport might not be enough for them to land, and they would have to make a go-around.

The two peaks, both white, flashed in the sky, and then the fighter plane passed through the valley, and in front, the runway of the civil aviation airport was already visible.

At this point, the ground crew was already waiting there, and unlike the red clay airport, the conditions here were much more difficult.

They were wrapped in military coats, feeling the cold wind, their faces became chapped, their lips turned purple, and the plateau had begun to bring discomfort to their bodies.

Everyone is still holding on.

"It's coming, it's coming!"