In later generations, the training base of the naval aviation is the wasteland village, but that is already 08 years later, and the construction has been completed in 13 years, the base of this wasteland village is strategically located, and after taking off, it will directly enter the sea above the sea, and training on it will not cause any danger to the ground, and it is relatively hidden.

But now, the Navy does not have an aircraft carrier, and the training of carrier-based aircraft pilots has not yet begun, so there is no need to build a new base at all.

If you want to test fly now, it is enough to be in Yanliang, after all, Yanliang is an aviation city in the East.

After the aircraft is developed, it definitely needs to make its first flight from its own base runway, and some test flight subjects can be completed, but professional test flights still need to have a professional base.

This professional base needs to have professional equipment, a professional team of test pilots, scientific data analysis devices, and rigorous improvement suggestions.

Lao Maozi Zhukovsky Test Flight Institute, there is the United States Edward flight test center, there is also Yan Liang in the East, there is not only the aviation industry test flight center, but also the aircraft design and research institute, there are aircraft factories, there are aircraft strength research institutes, etc., not only China's largest, but also Asia's largest set of aircraft design and development, manufacturing, flight test identification, scientific research and teaching as one of the aviation industry base.

Qin Feng hadn't been here before, but in the future, he had to come often, after all, the Xiaolong who cooperated with Tu Lao was a direct investment project of their Pacific Group, and other aircraft, such as Song Lao's Jian-10, also had a great relationship with him, and he would definitely have to be called when he flew in the future.

As for today, it was for J11.

By the time Qin Feng came to Yan Liang, it was already night.

In later generations, the gate of the test flight institute was built very magnificently, and there was a sculpture, on which was a fighter plane with wings spread, which looked very modern, but now, the test flight institute still maintains its original appearance.

Entering from the north gate, you can see the gate with a sense of vicissitudes, withered yellow leaves falling everywhere, and on the pillar on one side, several big characters are written on the Oriental Flight Test Research Institute.

Moreover, no one seems to be in charge of this gate, and it does not look like an important test flight place at all, but like an ordinary old community.

You can see a worker, riding a fiery Tianxia three-wheeler, with supplies in the back, riding fast and running away.

"Mr. Qin, welcome to the test flight institute." Fortunately, there was someone waiting for him at the door, it was the secretary next to Liu Lao, who took him through this area together.

"We came in from the north gate, and the location here is the big barracks, in the early fifties, it was the station of our Air Force Tenth Aviation School, and in the 59s, our flight research institute was established here, and this big barracks has also become a political and cultural center."

To put it simply, this side belongs to the living area, even if the gate is not closed, no little thieves will dare to come in, and it is easy to be caught as an enemy.

From the living area to the work area, there must be two doors, and the inspection over there is strict.

"Where's Old Liu?"

"Liu Lao is in the cafeteria, eating with the big guys, and by the way, I will discuss the test flight tomorrow. I'll pick you up and take you to the cafeteria. ”

"Okay."

There is a special pilot canteen in the test flight yard, but Liu Lao and they are not pilots, and there are aircraft designers to discuss together, so they eat together in the ordinary canteen, and when Qin Feng entered, he saw a large group of people sitting there, and one of them was standing, holding an airplane model in his hand, and his eyebrows fluttered to introduce something to everyone.

When Qin Feng walked in, he happened to look up as well, and immediately felt a burst of excitement: "Mr. Qin, are you here?" ”

"Leizi? Are you tomorrow's test pilot? ”

"That's right, I'll fly tomorrow." Lei Qi said: "It's not easy to win this task! ”

Lei Zi has a lot of tasks, he was a test pilot on the J-10 side, and he was busy with the aircraft designers and intervened in advance, but because he flew J-11 for the longest time, he knew the performance of this aircraft well, and the last time he dealt with Lao Maozi's MiG-29, he personally handled it, and now, the landing of the test flight carrier-based aircraft had to be carried out by him, and he really struggled to fight for this task.

"Yes, the landing of a carrier-based aircraft is different from a conventional landing, you have to be a young pilot to fly, and the older one, the body has formed a conditioned reflex, and if you want to do this kind of action with a high sinking rate, your hand will instinctively pull the plane up." Lu Lao spoke.

Ordinary aircraft land slowly with a slope and land smoothly on the runway, while the landing of carrier-based aircraft has a high sinking rate, simply put, it is to hit the flight deck.

This is not necessarily a conditioned reflex formed by the body, but to a greater extent an instinctive risk avoidance reaction, even if the old pilot can start to press the steep slope to descend, but watching the ground quickly approach, he still can't withstand this pressure.

This is also normal, pilots are the pride of the sky, carrier-based aircraft pilots are the best of the best, only the best pilots can become carrier-based pilots, and the US Navy pilots have never looked down on the air force pilots, thinking that they are not called flying, which is also reasonable.

"We selected ten pilots to experience the landing of carrier-based aircraft pilots, and in the end only three people remained, and among the three, Lei Zi's performance was the best." At the same table, the leader of the test flight institute said: "We have carried out hundreds of simulated test flights, and the last ten times have landed directly on the ground, and Lei Zi has completed six of them alone. ”

"Only a hundred times? Is the experience enough? We're not in a hurry, we can have a few more times. Qin Feng spoke.

The landing of carrier-based aircraft was full of dangers, and when the US Navy's carrier-based aircraft aviation was transitioning from propeller planes to jet aircraft, it was only after thousands of pilots were killed that they found the trick.

What about yourself?

Originally, our navy was only land-based, but in recent years there have been a small number of carrier-based air forces, and they still fly helicopters, and this is the first time that this kind of fixed-wing aircraft is involved, and the risks contained in it can be imagined.

Not to mention hundreds of simulated test flights, thousands of times is not much, this can't be rushed.

"When we were carrying out the 707 project, we used the J-7 to do experiments, although the J-7 J has only developed to the prototype stage, but our pilots have used ordinary J-7 fighters to carry out carrier-based aircraft landing experiments, and have accumulated a lot of experience." Liu Lao said: "However, at that time, it was not suitable for either Jian-7 or Jian-8, and it was still the best to use Jian-11 now!" ”

Speaking of carrier-based aircraft in the East, many people will think of the J-15, that is, the carrier-based aircraft improved on the basis of the prototype T-10K of the Su-27, when the Tomcat was retired, it also became the only remaining heavy carrier-based aircraft.

However, the footsteps of the Vostok carrier-based aircraft have already begun.

The earliest demonstration project of the aircraft carrier was the 707 project, and at that time there were only J-7 fighters on hand, but in order to get on the ship, a magic change was also carried out.

Although it is also a single engine, the nose air intake has been changed to a side air intake, leaving the nose to accommodate more electronics, the dorsal fin behind the cockpit is raised to accommodate more fuel, the wings have been folded, a ship hook has been added to the back, and the windshield has been changed to a monolithic one, which looks like a modern atmosphere.

However, this kind of aircraft only carried out the prototype stage, and it was terminated because of the discontinuation of the 707 project, but it still accumulated a lot of experience, especially the pilots have used ordinary J-7 fighters many times to carry out this kind of landing test flight, even if it did not hit the runway in the end, it also carried out a complete high sinking rate simulation test flight.

This time, it will be easier to fly J-11 again.

"That's right, the biggest advantage of J-11 is the low speed, the previous J-7, including the current J-8, the minimum landing speed is 300 kilometers per hour, and our J-11 can be reduced to less than 250 kilometers per hour, the speed is low, we are more confident in flying." Lei Qian nodded, his face full of confidence: "This is the best carrier-based aircraft!" ”

"Leizi, sit down, after all that, it's time for us to eat, Lao Zhou, inform the kitchen to serve!"

Although the big guy is sitting here, he has been chatting all the time, especially after listening to Lei Feng's introduction, and waiting for Qin Feng to come before serving the food, Qin Feng felt an inexplicable feeling in his heart.

"Old Liu, you should eat first when you sit down, you don't have to wait for me."

"You are the greatest hero of our navy, how can I not wait for you." Liu Lao said with a smile: "In addition to the fighter plane, there is also the blocking cable, you have made great efforts." ”

There have been many test flights before, but Liu Lao didn't come over, and today he came, of course, because the blocking device has been installed in place, and tomorrow the real blocking landing can be carried out, which has a new meaning for the navy!

"Did we get the blocking device out?"

"That's right." Liu Lao nodded: "Back then, we dismantled the Melbourne, although it was an empty shell, we also gained a lot of inspiration, we saw the structure of the catapult, and also mastered the principle of the blocking device." ”

Ordinary aircraft need to take off and land on a runway of several hundred meters or even thousands of meters, but the aircraft carrier is not so big, the largest Nimitz class is only about 300 meters long, and the take-off area in front is about 100 meters, so the carrier-based aircraft needs to use catapults to fly, although the beveled deck is more than 200 meters, but the back is the landing area, and the front has to take off and go-around.

Therefore, the carrier-based aircraft also needs to stop at a length of more than 100 meters, which requires other methods, and the most mature at present is to lay a few ropes on the deck, and when the carrier-based aircraft falls up, the landing hook behind the butt hooks the rope and pulls the plane to a stop.

This rope has to withstand a huge pulling force, and the current basic standard is at least 85 tons of impact force, and there can be no problems a hundred times. At the same time, it is not only because of the rope that pulls the carrier-based aircraft, but also a whole set of hydraulic devices below the deck to cushion it, converting the huge kinetic energy into heat energy and dissipating it.

The energy of each landing is consumed, which is a huge waste, so later generations have electromagnetic blocking devices to convert this energy into electrical energy and store it, and then use it.

Now you don't have to think about such a tall thing, it can solve the problem. This hydraulic buffer device is not easy to develop, and some workpieces that require precision machining and high-strength materials are all provided by Pacific Group.

"There is a blocking device, and when the test flight is successful tomorrow, the problem of our carrier-based aircraft landing will be completely solved, and the next thing is the problem of take-off, Xiao Feng, I remember you said before that you took off by sliding jump?" Liu Lao said.

Qin Feng smiled, he just wanted to brag about it, but suddenly thought of something, and quickly shook his head: "No, no, it doesn't need it for the time being, if the navy really wants to tinker, try a catapult, that is the regular one." ”

"Why?"

"If you take off in a glide jump, it will be too much waste of space on the foredeck, and the bow of the ship will be upturned, so you will not be able to dock the carrier-based aircraft, so you can only take off."

Liu Lao frowned: "Xiao Feng, that's not what you said at the beginning!" ”

"It was then, and now it is now." Qin Feng spoke.

Blocking the landing can be experimented, but if an upturned deck is piled up in the test flight yard, then the whole world knows that we are going to take off by skiing and jumping, and when we go to Ermao to buy the Varyag, there will definitely be many people who will make a hindrance and increase the difficulty out of thin air.

Anyway, there are no aircraft carriers now, the Navy is just doing technical foreshadowing, landing is very complicated, what is so difficult about taking off, aim at the runway, throttle to the end, release the brakes and fly!

So, don't test it when you take off.

"We've been working on steam catapults for many years." An engineer present said: "This catapult has many technical difficulties, such as high-precision machining of cylinders, metal fillers, and high-pressure gas tanks...... Although we know the principle, we can't process it......"

When he said this, he suddenly looked at Qin Feng, and then slapped his thigh suddenly: "By the way, Mr. Qin, our Pacific Group has a very strong processing capacity, so it should be able to help us process it, right?" ”

The principle of the steam catapult is very simple, the steam at high temperature and pressure enters the cylinder, pushes the piston forward, and the piston accelerates with the aircraft above.

It has been 300 years since mankind entered the age of steam, and the use of steam has reached the extreme, but there are still few countries that can make steam catapults, and the biggest reason is still processing technology.

The cylinder of the steam catapult is close to 100 meters, it must be absolutely straight, the interior must be fine enough, and the thermal expansion and contraction after the entry of high-temperature and high-pressure steam must be taken into account.

That's all there is to it, and the key is the opening above!

The piston inside the steam catapult needs to be fixed with the front wheel of the carrier-based aircraft above, and a slender opening must be made above the cylinder wall to connect the connecting rod, but at the same time, it must not leak.

The previous solution was to use a zipper, but now it is a filler, which is covered with a soft metal plate, and as the piston moves, this filler is constantly stuffed in to keep the cylinder airtight, which puts forward high requirements for materials and processing technology.

Finally, there is the gas tank.

It is impossible to get the steam directly out of the boiler, otherwise the pressure will drop too much to continue using it halfway through.

Therefore, the steam needs to be stored in the gas tank in advance and used in one go, and this gas tank is an absolute high-pressure vessel, and the pressure resistance value must reach at least 70 atmospheres.

There will be no more than five companies in the world that can build such gas tanks.

In the past, it was impossible to think about it at home, but now, with the Pacific Group, anything is possible.

Mao Honghai, the engineer who is now speaking, participated in the research and development of steam catapults during the 707 project, and later decided to take the route of vertical take-off and landing because he couldn't figure it out, and after the start of the current 891 project, he continued to demonstrate electromagnetic catapults.

There are technical problems, and if they are solved, they have to rely on the Pacific Group!

In fact, Qin Feng just didn't want to jump into the project immediately, so as not to add twists and turns to buying the Varyag in the future, but he didn't expect that the big guy would actually bring up the steam catapult again.

In later generations, our aircraft carriers were directly ejected by electromagnetic catapults, ancient steam locomotives and modern high-speed maglev trains, how to choose?

Qin Feng didn't want to do it, he was not afraid of spending money or trouble, the key was that it didn't meet the needs. Isn't it a waste to develop it now, and then not equip the object?

But what is the reason for not agreeing?

"Steam catapults are not easy." Another expert present spoke: "The British once developed the BS4 series catapult, but then gave up, and now the only mature and reliable in the world is the C-13 catapult of the United States. ”

Wait a minute! Here's your chance!

Although France boasts that it has a complete military industry, after all, the scale is not large, and it is not cost-effective to develop many things by itself.

Although the aircraft carrier was built by itself, the nuclear reactor was not redeveloped, and the nuclear submarine was directly used, and as a result, it became the slowest aircraft carrier in the world.

Carrier-based aircraft use their own Rafale, but the supporting early warning aircraft can only be purchased from the United States, and it is not cost-effective to develop two or three aircraft by themselves.

The same is true of catapults, but they need two, and they still have to be purchased from the United States, and then, the American lion opened his mouth, and one will cost 12 million US dollars, treating the French as fat sheep, but this is not expensive, and when the French want to buy electromagnetic catapults from the United States, the price will be as high as 1.3 billion US dollars!

The current price is equivalent to twice the price of self-use in the United States, what about us? Quote a cheaper price, can the French not be tempted?

As long as the French are fooled, then the research and development funds will be available, and after the development is sold, it will be sold to the French, and it can also be used as a technical reserve in China, in case the aircraft carrier plan is advanced, the electromagnetic catapult cannot be developed, and it can be directly put on the steam catapult.

That's right, that's all!

"Okay, we can help with the processing, wool workers, send the design drawings to our factory in Jincheng, and we will process one and install it in Yanliang or other naval bases for testing."

Liu Lao glanced at Qin Feng curiously, very curious about his attitude.