Chapter 834 What is the concept of push-to-weight ratio 1.4?
320 Factory is a typical example of foreign trade. After developing K-8, it successfully opened up the road to foreign trade and even exported the entire production line. However, after the development of L-15, the road to export was not It was not smooth. Although it appeared at air shows several times, it was not sold.
The reason is also very simple: too expensive!
Intermediate training aircraft like the K-8 are cheap, costing several million each, and even a production line only costs about 100 million. Many countries can afford it, but the L-15 is different. The price of this aircraft At eight million US dollars, for such a high price, you can already buy second-hand MiG-29s and the like on the international arms market.
Therefore, even if many countries lack high-education aircraft, they are reluctant to purchase them. Currently, only the domestic air force has purchased a batch. After all, the JJ-7 cannot simulate the various maneuvers of third-generation aircraft.
This is also the reason why they work hard to develop attack aircraft. Only by increasing its multi-mission performance can they win the favor of users.
At this time, they were of course very excited when they heard Qin Tao said that he would help them attract foreign customers.
"Thank you, Mr. Qin! As long as the customer is not very price-sensitive, they will definitely choose our aircraft." Shi Lao said excitedly.
This is enough to make everyone speechless. Our aircraft are brand new and can fly for thirty years, but customers always compare our aircraft with second-hand aircraft. Are our aircraft only qualified to compete with second-hand aircraft?
“Well, even if they are price-sensitive, we can still find a way.” Qin Tao nodded.
“By the way, Mr. Qin, we also plan to improve the carrier-based aircraft on this aircraft.” Everyone was very excited and simply talked about the next project with Mr. Qin.
The trainer aircraft currently used by carrier-based aircraft is the T-45 obtained by Dingo. Factory 320 used its experience in the K-8 to conduct reverse mapping. Now this improved trainer aircraft is The best trainer aircraft for the Navy to train pilots.
After the pilots have flown the carrier-based K-8, they will fly the corresponding two-seat aircraft. Of course, there is also an advanced trainer aircraft in between. They also have to fly on the basis of the two-seat carrier-based aircraft. A lot of training, a waste of time and money.
With the foundation of the carrier-based K-8, everyone is confident in the improvement of the carrier-based version of the L-15. However, because their technical strength is not strong, it is impossible to carry out several modifications at the same time, so until now , it can only be an idea, giving priority to modifying attack aircraft.
"Of course. Didn't you say that this aircraft can also simulate the flight characteristics of our fourth-generation aircraft? It is inevitable to convert it into a carrier-based trainer aircraft. In the future, our navy's aircraft carrier training will require such an advanced trainer aircraft, and it can also It can be used as an attack aircraft. The training aircraft carried by our navy's aircraft carrier can also be used as an attack aircraft when needed, especially in front of some weak opponents. We do not need to dispatch the J-15 or J-32. This type of aircraft used to be enough.”
Everyone was overjoyed: "Okay, Mr. Qin, when the mission of this attack aircraft is completed, we will modify the carrier-based training aircraft!"
It is indeed very important for the L-15 to have the ability to board ships. After all, this trainer aircraft has advanced performance and can save the flight life of precious two-seat fighters. We cannot let the J-15 and J-32 sit in squat landing gear. Waste your precious life, right? Besides, the engine used by this trainer aircraft is from Genghis Khan Airlines. Expanding the user range of this aircraft will also be beneficial to Tianjiao Airlines.
Moreover, this kind of aircraft uses sub-costal air intake, and the nose landing gear is also connected to the girder. In this way, it can not only land but also take off using a catapult. It only needs to be strengthened. The L-15 is inherently capable of boarding ships. .
"Mr. Qin, we have another idea." The big guy kept up the good work.
“What idea?”
“We want to modify the appearance of this trainer aircraft to give it a certain stealth capability.”
Stealth is a trend. Look at the fourth-generation aircraft of the Mingzhou Group. They are selling like hotcakes because of their stealth capabilities. They also want to equip their training aircraft with stealth capabilities so that they can perform attack missions more smoothly.
"The nose and air intake are easy to modify. Just improve them according to the standards of the American F-18 fighter jet. The main thing is the vertical tail. We have to change the single vertical tail into two cambered double vertical tails. This workload is It's a bit big, but we should be able to complete it. Applying another layer of stealth paint can reduce the radar reflection area of our fighter planes by an order of magnitude, making it easier to perform attack missions."
Qin Tao smiled and said, "You can make up your own mind on this kind of improvement. I won't say anything else."
If the L-15 sells well, they can raise their own funds to carry out stealth modifications. If it does not sell, the funds for the improvements will not be raised.
So, they still have to look at themselves.
In Qin Tao's time and space, L-15 said that it would make stealth improvements, but there was no movement, and it was not even as fast as the Xiaolong. Therefore, Qin Tao didn't know whether this improvement would be possible. He No more comments.
Qin Tao inspected Factory 320 for two days, and on the third day, customers came to visit.
“Mr. Qin, guests from Cuba are here.” Xu Zhengyang said to Qin Tao.
“Well, let’s go to the runway to meet you.”
It is easiest for guests to come to the aircraft factory. The planes they take can land directly at the airport. This time, the people from Cuba first arrived in the capital of the East, and then a special plane took them to the 320 Factory.
This is a regional airliner, the MA-60, which is a civil aviation airliner modified on the basis of the Yun-7. It is the most suitable propeller airliner for underdeveloped countries. Obviously, XAC also has ideas and hopes to sell this kind of airliner. For Cuban customers, this time is just like letting them experience flying.
The cabin door slowly opened, and a group of people walked out. There were white, black, and chocolate, but there were still more white ones.
The leader is a white man in his forties. He is not tall, but he carries a unique military aura in his movements.
“Hello, Mr. Pino, I have long admired your name.” Qin Tao came up to greet him and extended his right hand: “I didn’t expect the Cuban Air Force to send you such a veteran general who is good at fighting.”
Rafael Del Pino was a combatant in the Cuban Air Force. In 1973, Cuba began to intervene in the Angolan civil war. A large number of Cuban pilots flew over Angola and fought with the opponent's Phantom fleet. At that time, Pino was already A MiG-21 squadron was formed. When a Cuban patrol was surrounded, Pino took the initiative and flew the MiG-21 over the enemy's head repeatedly at ultra-low altitude. When the enemy lowered his head to find a bunker, the Mi-21 flew over the enemy's head. 8 helicopters successfully rescued the patrol. Although Pino was relieved of his duties as a result of this rescue, he became famous.
In 1977, after returning to China, a MiG-21MF squadron commanded by Pino flew over Puerto Plata in the Dominican Republic, demanding that the country release the previously seized Cuban merchant ship Capitán Leo. This merchant ship was originally intended to support Angola, but accidentally entered It entered Dominican waters and was seized by others.
Without hesitation, Cuba immediately sent planes over to show off its force. If the other party did not release the ship, they would bomb Puerto Plata and Santiago de los Caballeros the next day. Therefore, the other party compromised.
These things will surprise people, is Cuba so awesome?
That’s right, in previous eras, Cuba was so awesome! They are definitely the number one hegemon in Latin America, and other countries have to go around. Even the United States suffered a loss at the Bay of Pigs and will not dare to provoke them easily in the future, let alone other countries. It's good if Cuba doesn't bully others. They are also walking sideways on the African continent. In Ethiopia, they beat the Somalis until they peed.
The Cuban Air Force is also quite powerful. In the 1990s, the Cuban Air Force had 230 fighter jets, as well as the most advanced MiG-29. Needless to say, this kind of combat capability ranked first in Latin America. Even if you look at the world, it is enough to be among the top.
However, 1990 was also their most glorious time. With the collapse of the Red Empire, the Cuban Air Force lost its strongest backing. They simply did not have the strength to maintain a huge fleet. A large number of aircraft were transferred to inventory or retired. For now, Generally speaking, their total number of aircraft has dropped to about a hundred, and they are all old aircraft. They have never updated their fleet in the past ten years.
Even if they wanted to buy one, they couldn't find a suitable one in the international market, so they had to make do with it. This time, when they heard that the East had advanced aircraft and invited them to visit, they were immediately tempted.
Pino came here in person, which was enough to see how much the Cubans valued him. At this time, looking at Qin Tao in front of him, Pino also admired him: "Mr. Qin, when the person in charge of your Starship Company was detained in the United States, , we were also sweating, thinking that the unlucky guy would have to stay in the United States as a prisoner from now on. Unexpectedly, you only used the No. 4 ship in less than a month to rescue him. It's amazing, we admire him! "
Cuba has always been anti-American, and of course it admires anti-American heroes the most. What the Mingzhou Group did last time was definitely the most exciting for them. The Yankee conspiracy did not succeed, and the Yankees suffered a loss!
Mr. Qin is mighty!
“Those are what we should do. We are not wrong, and of course we will not bow under external pressure.”
“Mr. Qin, you also produce advanced fourth-generation stealth aircraft. Can we purchase that kind of fighter aircraft?” Pino continued to ask.
These words stunned the people following Qin Tao.
What? Purchasing a fourth-generation stealth machine? Aren’t you here to purchase our L-15?
Everyone looked at Qin Tao with doubtful eyes.
“Our fourth-generation stealth aircraft is expensive, with a unit price of over 100 million. I’m afraid you don’t have enough funds to purchase it,” Qin Tao said.
Just one sentence pushed the other person back. What does Cuba have? cigar? brown sugar? Even if these things are world-famous, it is absolutely impossible for the Cuban Air Force to purchase the most advanced stealth fighter jets.
Pino had a disappointed look on his face.
“Furthermore, the order for our fourth-generation stealth aircraft has been scheduled for ten years. Even if you place the order now, it will take ten years before you can get the fighter jet. Can you wait that long?”
Pino sighed: "What a shame."
They came immediately after receiving the invitation from Dongfang. In fact, they came for the fourth-generation stealth aircraft. After they arrived, they learned that they could not buy it, and of course their interest was greatly reduced.
"We have an aircraft here that is most suitable for you. It can simulate many characteristics of fourth-generation aircraft. In our country, it is actually used to train pilots of fourth-generation aircraft. You will purchase this aircraft first. In this Complete a full set of training on the aircraft and have actual combat capabilities. When you have sufficient funds in the future, you can buy back the fourth-generation aircraft and directly form combat effectiveness. Wouldn't it be better?"
“That’s right, it’s a training aircraft. Don’t underestimate this kind of training aircraft. Its performance is not weak at all.” Qin Tao said: “Let’s go and take a look together?”
"Okay." Pino nodded. Although his interest had greatly diminished, he could only suppress his patience. Now that he was here, he couldn't turn around and go back. Let's take a look before talking.
“Everyone, come to the stands. Next, our plane will give you a wonderful flight show.” Mr. Shi greeted everyone.
It didn’t rain today, which is really rare. I took this opportunity to let the guests see the performance of our aircraft. Mr. Shi believed that after seeing these people, they would be interested in the aircraft.
As everyone sat down, the roar of engines sounded in the distance. When they looked towards the end of the runway, many people were stunned.
“That plane has a very strange appearance.”
“Yes, isn’t it just a training aircraft? Why does it still have side wings?”
“Why is the sound of the engine so loud? Is there two of them? Is this too luxurious for a training aircraft?”
While everyone was watching in surprise, the plane completed its preparations for takeoff. When the brakes were released, the plane began to roll away quickly.
Fast, this is too fast, unbelievably fast!
Fifty, one hundred, one hundred and five!
The fighter plane had just taxied 150 meters when the nose landing gear was raised! At this time, everyone was no longer calm and stood up from their actions.
"This is impossible!" Before Pino could finish his words, the rear landing gear was actually raised.
How far did it slide in total?
Two hundred meters!
It is simply at the level of the propeller fighter era. It can fly just 200 meters. This is simply unbelievable!
Even the MiG-29 can't do it. A normal third-generation aircraft also needs a runway of about 500 meters. The aircraft in front of them simply subverted their cognition.
Qin Tao was also a little surprised. He was a shipbuilder, not an aircraft manufacturer. Although Mingzhou Group had an aviation industry, Qin Tao didn't know much about it. He never expected that the L-15 could take off so quickly.
As if he knew what he was thinking, Mr. Shi on the side said with emotion: "I am so powerful that I can fly bricks, Mr. Qin, thank you so much for this..."
Thanks to Tianjiao Airlines for the engine!
Even if it is improved from the technology of the Yak-130, the Yak-130 cannot be so fast, because the Yak-130 uses a non-afterburning engine, and the thrust is far less than that of the L-15. The whole world can do this. The only thing that can move is the plane in front of us!
When the afterburner is turned on, a single engine can provide 4.7 tons of thrust, and two engines can provide 9.4 tons. The normal take-off weight of the L-15 is only eight tons. The thrust-to-weight ratio with afterburner turned on is close to 1.2. The performance is amazing At that time, the take-off weight was only 6.7 tons. The thrust-to-weight ratio not only exceeded 1.2, but also reached an incredible 1.4. There is absolutely no second model in the world. Even with a maximum takeoff weight of 11 tons, the performance of this fighter is still impressive.
Under the sky-high thrust-to-weight ratio, the performance of the L-15 will of course be extremely excellent. Of course, this must also be matched with the advanced aerodynamic shape. If the shape design is not good, it will not be able to take advantage of the power.
At this time, before Shi Lao had finished speaking, the Cubans cheered loudly.
I saw the nose of the beautiful airplane rising, and the angle of attack was constantly expanding, thirty degrees, sixty degrees, ninety degrees?
Maybe there is not 90 degrees, that is, more than 80 degrees, but what does it mean to do this kind of action just after taking off? The elites present all know: you are looking for death, if you do this, you will definitely stall and crash!
However, the aircraft in front of us did not stall. It relied on the excellent performance brought by the side wings to increase the angle of attack to more than 80 degrees. It relied on the thrust of the powerful engine to pull onions from dry land and continue to accelerate upward!
As long as the thrust-to-weight ratio exceeds 1, it has this ability, but in fact many pilots dare not fly this maneuver. Now, with the thrust-to-weight ratio of 1.4, pilots can perform this maneuver very easily.
Just this one action conquered all Cubans.
Pino swallowed a gulp of saliva: "If there is this plane, I dare to fight with the F-16!"
When he was flying MiG-21 in the past, Pino felt that the performance was too poor. He could only run when encountering an F-16. But if there was an aircraft in front of him, he would definitely not run again, and he would definitely stay and fight! This maneuverability is definitely stronger than the MiG-29.
The aircraft climbed up to 500 meters, then turned off the afterburner and adjusted to the idle state. The fighter began to decelerate upward until the speed was zero. Then, the nose continued to be above and the tail was below, and the entire aircraft began to fall downward.
"Tail thrust! This aircraft can actually perform tail thrust. It's amazing!" Pino became excited. This action tests the performance and control performance of the aircraft at high angles of attack. Ordinary aircraft cannot do it at all. Even Pino I have never flown this kind of maneuver before.
The plane fell down for tens of meters before leveling out. Then the roar of the engine was heard again. It began to accelerate in the horizontal direction, followed by horizontal circling, rapid climb, figure-eight circling, continuous roll, inverted flight, etc. Wait, the fifteen-minute flight performance fully demonstrated the performance of this aircraft.
The audience's voices were getting louder and louder. Until the plane landed, everyone was still immersed in the flight performance just now.
"The maneuverability of this aircraft is a feast for our eyes. In our hands, currently only the MiG-29 can do some similar actions." Pino said: "We are very interested in this aircraft. Now, we can get it at close range Watch it?"
“Of course, you can get on the cockpit and have a look.”
This aircraft was originally meant to be sold to the outside world, but now these people are the first foreign customers. Not to mention viewing the aircraft, even if they want to dismantle the aircraft, we can agree.
So, everyone swarmed towards the tarmac.
This is a two-seat training aircraft, but due to the small size of the body and the side wings, the pilot in the rear cockpit does not enjoy the treatment of a separate gangway. The canopy flips to the right, and the left side and front side A pedal was placed in the middle of the cockpit, and a tall handrail was added to the right side of the gangway in the front cockpit. This way, the pilot could step on the pedal and hold on to the handrail to get up and down the gangway in the front cabin.
This is just a small detail, but it also reflects the designer’s meticulousness.
When the two pilots came down, Pino had already climbed up before saying anything. When he looked down at the cockpit, he sighed: "One level and three times?"
"Yes, this trainer aircraft is mainly used to train pilots of third-generation and fourth-generation aircraft. Of course, it needs a glass cockpit. After you purchase it, you can train pilots who are adapted to the new glass cockpit. Moreover, this way, man-machine The interaction is convenient and it is easier for pilots to maintain their energy in the ever-changing air battle. Would you like to sit in and try it?"
It was the first time for Pino to sit in a glass cockpit. There were no instruments in front of him, and there were far fewer switch panels than before. He was even a little at a loss. How should he fly this kind of airplane?
"If you plan to purchase our fourth-generation stealth aircraft in the future, you must adapt to this operation method. The cockpit interface is no different from our fourth-generation stealth aircraft, and the flight control laws are also very similar. When you change flight, You will find that the connection can be seamless." Qin Tao continued to lie.
Others were down below, touching various parts of the plane.
Over the years, the industry in the East has developed rapidly, and in many aspects it has moved closer to the West. There are no longer exposed rivets on the skin of the aircraft, and the surface is extremely smooth.
Someone went to touch the brake pads, and they saw that the plane stopped directly without putting down the drag chute. When they touched it, they were not hot at all. These are the most advanced composite brake pads!
More people looked at the engine.
“Do you produce this engine yourself?”
"Yes, it is produced by our domestic Tianjiao Aviation. Compared with Lao Maozi's original AI-222 afterburning turbofan engine, its service life has been extended to one thousand hours. After two overhauls, the total engine life has been three thousand hours. This way, it only needs to replace the engine twice during its entire life.”
Change it twice?
“This kind of aircraft has a lifespan of nine thousand hours?” The Cubans were shocked.
The MiG aircraft they often use has a service life of only 1,200 hours. The life of third-generation aircraft such as the MiG-29 is less than 3,000 hours. I just heard someone here say that the engine has a lifespan of 3,000 hours. I thought it had the same lifespan as the body, but I didn’t expect that the body actually has a lifespan of 9,000 hours?
What is this concept?
The current most advanced F-22 has a body life of only 10,000 hours!
"Our airframe life is designed to be 10,000 hours, but considering the engine life, it would be a waste to replace the engine at 9,000 hours, so it is temporarily limited to 9,000 hours." Shi Lao said: "We An aircraft sells for 10 million U.S. dollars. Although it sounds not cheap, our service life is long. In its entire life, it is equivalent to three brand-new MiG-29s, which cost 60 to 70 million U.S. dollars. If you consider the price of replacing an engine for a MiG-29, it would be hundreds of millions."
“That’s right, you’re right!”
(End of this chapter)