I used to be used to the whistling of jets, but now I look at this kind of propeller aircraft, which is also a different flavor.

In the era of propeller fighters, the output of the aircraft is almost the same as that of the tank, and the cost is about the same, the average fighter jet, that is, the weight of about three or four tons, the fuselage is small, and the wing is straight, so that its circling characteristics are quite high, but at the same time, the power of the engine limits its vertical maneuverability, when it climbs up, the angle of attack cannot be too large, especially when it flips and flies upside down, making a figure-8 flight in a vertical plane, at the apex, Qin Feng is even afraid that it will fall.

However, General Lin on Qin Feng's side looked like he was relishing, Qin Feng knew that General Lin had returned to the past era, when they were driving propeller fighters to defend the sky of the motherland, those days were the most colorful page in General Lin's life.

Now, after twenty minutes of flying, the Il-2 came down, and on the runway, another aircraft was ready.

MiG-29.

The beautiful shape of the MiG-29 appeared in front of everyone again, and now, it touches everyone's hearts.

The last time I came, I only watched the static display of this aircraft, which made Qin Feng very emotional at the time, and felt that this fighter was still quite good, but later, after careful study, the Air Force finally gave up, and the Air Force recognized the Su-27.

The appearance of the two fighters is about the same, and now, if the MiG-29 is bought, there are no political and economic obstacles, the main thing is the matter of choice, when there is no news about the Su-27, it is also good to look at the MiG-29 first.

Qin Feng's eyes widened and he looked at the fighter, at this time, the fighter plane was on the runway, preparing for takeoff.

"I look at the power truck, it seems to be similar to ours." Someone said.

"Yes, if we purchase equipment from the Soviet Union, then a lot of our ground support equipment can continue to be used, which is also a lot of expenses." General Lin said.

If you purchase Western equipment, it is the Western system, you are now using the Soviet system, these two systems are different, the equipment is very different, not to mention the interface of the ground refueling truck is different, you can't refuel directly, the interface of the ground power supply vehicle is also different, if it is the equipment of the Soviet Union, you can directly guarantee it when you go back.

As he spoke, the whistling sound of the engine came, and looking at the black smoke coming out of the engine, the people present were a little surprised, isn't this your third-generation aircraft? How can this still happen?

The engine of the third-generation aircraft should be more efficient in combustion, who would have thought that there would be black smoke? Fortunately, after the start-up process was over, the black smoke also disappeared, and lilac flames came out of both tail vents, indicating that everything was normal.

Look at whether a fighter is advanced, you can see it from takeoff, who takes off with a short runway, it means who has good lift characteristics and strong power, here in the MiG-29, of course, take-off is also commonplace, and even, the Soviets deliberately flaunted the benefits of their fighter, at this time, the air intake in the belly is closed.

"As you can see, now we are using the auxiliary air intake on the back of the aircraft, this way of air intake can allow the fighter to take off on the field runway without worrying about inhaling debris, this fighter is specially prepared for front-line aviation." A Soviet Air Force colonel, who served as a narrator at the scene, began to narrate there.

There are pros and cons to this thing.

Your own airport runway must be carefully inspected every day, even if there is a screw on the ground, it may bring very serious consequences, and it is easy to suck it into the air intake, especially now this kind of fighter with belly intake, even more so.

Therefore, this aircraft has adopted the upper auxiliary air intake channel across the ages, so that there is no need to worry about take-off at all.

In the third-generation aircraft, the method of belly air intake began to be used, because most of the third-generation aircraft pursue high angle of attack performance, and the way of belly air intake is the most efficient at large angles of attack, and the air intake will not be blocked by the nose, so why not worry about blocking the air intake when it dives?

It doesn't matter if you dive to block, because when diving, the fighter has a height and can convert gravitational potential energy into kinetic energy, even if the plane idles, it doesn't matter, but it can't climb, it's the time when you need strength the most.

Belly air intake, which is beneficial for large angles of attack, but at the same time, it also leads to the need for a clean runway for take-off, which is the most inconvenient in wartime, however, on our MiG-29, it has been solved, we have air intakes above!

It is precisely for this reason that its fuel load has been further reduced, and how much space does it occupy? How nice it would be if it was all used to drain oil! Qin Feng thought secretly in his heart.

However, of course, he can't say it here, at this time, in everyone's attention, the MiG-29 began to drag two thick black smoke and slid forward!

Just now, at idle, there was no incomplete burning, but now when the pilot turns on the afterburner and takes off with afterburner, smoke has once again become an indispensable element.

Tu Lao also frowned there, is this engine good or not? If it is installed on your own super seven, black smoke will be emitted when it takes off, which will definitely affect the image. I know that the engine is originally emitting black smoke, but I don't know, I thought the plane was on fire!

The RD33 used in the MiG-29 is such an engine, which is also determined by many reasons, although this engine is used for the third generation aircraft, but it still uses the previous short annular combustion chamber and centrifugal nozzle. These parts are simple in structure, easy to manufacture, and easy to maintain. However, since it is a product of the older generation, like a carburetor car, black smoke is essential.

On the other hand, they lack the technology to accurately control the amount of fuel injection, emitting black smoke, that is, because the fuel is injected too much and the combustion is not complete, the American F404 engine has never been seen, because the fuel injection volume of their engine is realized through the electronic control unit, just like the electric injection engine of the car, which can accurately control the amount of fuel injection according to different working conditions.

Tu Lao already knows a lot about F404, its control system, on the side of the engine, is just a small control unit, and when he first discussed RD33 in detail, he found that the control part of the RD33 engine is at least ten times larger than F404 in volume!