Chapter 815

Compared with military aircraft, civil aircraft pay the most attention to safety, and there is nothing wrong with a mature engine.

In China, among the self-developed engines, only Spey is mature, but Spey's engine is too poor. Its civil model, that is, the engine in the civil aviation Trident aircraft, has only more than 40 kN of power, while what is needed now is more than 80 kn.

In other words, four engines are hung under the wing of Yunshi. If it is a civil type, it is enough to hang eight engines. Although the more engines, the safer it is, the mechanical complexity is great.

Old ma nodded: "we look forward to the success of our own third-generation engine. After it is transformed into a civil type, the performance of our airliner will certainly make great progress."

The current jt3d engine is actually a turbofan transformed from a turbojet engine. The fuel consumption rate of this engine is not low. If you can replace it with a new engine and save more fuel, it is definitely the best.

Old ma is full of confidence in his future.

Qin Guan and Ma Lao said as they walked around the plane. Looking at the final assembly of the plane, they learned that the first plane had completed the final assembly and was undergoing static test. The second plane was ready for test flight, and the materials of the third plane had begun to be prepared.

The fate of future generations of the materials of the No. 3 aircraft is sad, because the project is off the horse, and the aluminum plate of the No. 3 aircraft is actually used by a group of workers to practice rivet guns. They want to assemble the rear fuselage of the McDonnell Douglas 82. They are so speechless.

"When you make your first flight, be sure to let me know." Qin Guan said to old ma, "I really hope to see this plane fly into the blue sky. It's getting late. You can have a rest early."

It was already more than 10 p.m. after this visit. The workers in the plant were still working hard, which was very touching. These hard-working workers abandoned their homes and businesses for the construction of the motherland.

"President Qin, do we look back?" Xiang Jing asked Qin Guan.

Qin Guan shook his head: "no, let's go to factory 4430 first."

Qin Guan thought about the engine again. Now, I don't know how the modification of Spey is going. The new three-generation engine project should also be launched. Time waits for no man!

Qin Guan was full of a sense of historical urgency.

It can't solve the problem of power and heart. Everything is in vain. Even if Spey completes it well, it is only to solve the problem of whether it exists or not, and the new three-generation engine is the most critical.

During the flight of the plane, Qin Guan plunged into the system. Now, he needs to find some design data.

Weapon data cemetery, start!

The interfaces flashed one by one. Chongzhen, the new comer, was stunned. He almost replaced Lisa in the past and asked Qin Guan about this and that. Qin Guan ignored the follower and clicked various buttons to enter Ge. Of course, what Qin Guan is looking for is the development data of F110 engine. In later generations, with the four generations of military engines have begun to be equipped, the thrust to weight ratio of F119 engine against the sky has reached 10, giving F22 unparalleled excellent performance. Therefore, the technology of three generations of engines such as F110 has been sealed up and entered the graveyard of weapons data.

Qin Guan, just find it.

How much information about an engine will there be? Dozens of tons less!

Qin Guan recalled the engine while looking for it.

It is not easy for Yingguo's company developing fighter power to develop a new engine. This F110 engine dates back to the 1960s, when the code name is F101

This is a medium bypass ratio afterburner turbofan engine developed by General Electric for the strategic bomber B-1. At that time, the company was implementing the second generation advanced turbine engine gas generator program under the Eagle Air Force Contract, numbered ge9.

After the success of the competition, we started a long research and development, which lasted for ten years. It was only in 1976 that we passed the experiment.

Unfortunately, Carter came to power. The president is definitely a different kind. It can be said that he is the president who was ousted in the history of Eagle country.

Carter stopped the plan and thought the B-1 bomber was too expensive. B52 was enough.

However, the test of this engine continues. The test plan of f101-ge-100 continues until 1981 to accelerate the maturity of the engine, prolong the service life of parts and reduce production costs and logistics support costs. Finally, the ground test accumulated more than 40000 hours and the flight test accumulated 7600 hours, and the engine reached the level that can be put into use. The total development cost is 621 million yuan.

After that, they had a keen premonition of the opportunity. At this time, there were a lot of durability, reliability and handling problems with the tf30 and F100 engines used by Eagle first-line fighters. Ge began to modify this engine. After all, it used to be used as the power of bombers, which can be said to be similar to that of airliners. Now it needs to be changed to become the power of fighters.

Harmony reflects the benefits of harmony with Xinjiang. Just change the outside world.

The improved code is F110. Compared with the original f101-ge-100, this engine mainly reduces the bypass ratio and improves the boost ratio.

The fan is changed from stage 2 to stage 3, the pressure ratio is increased to 3.2, the diameter is reduced to 970mm, and the culvert ratio is reduced from 2.01 to 0.87; In order to adapt to the increase of low-pressure rotor speed, the low-pressure turbine is redesigned; In order to meet the requirements of fighter maneuvering flight, the design overload is increased to 10; The control system is improved and a backup device is added; In order to adapt to the airframe of F-14, F-16 and especially F-15 aircraft, necessary modifications have been made to the external dimensions, pipelines and anti icing system; Finally, it is easy to ignore that in order to reduce weight without sacrificing durability, weight reduction measures have been taken for almost all components and systems except the core machine.

After this series of improvements, a generation of famous aircraft finally appeared and became a typical engine of the third generation.

Aeroengine is the laurel of industrial products. Even if it will experience various tests in imitating this engine, it should unswervingly go on. Now, it is necessary to exchange all the data of F110 and F101 and send them to Mr. Wu!

Qin Guan soon found it.

It was almost a mountain of data. Looking at these data, Qin Guan frowned. If he exchanged these data, where would he exchange them?

If you are in the head office, you have to transport it. If you are in the 4430 plant, the risk is too great.

Just then, a voice came from the sky: "in addition to paper materials, there are computer stored materials? The CDs there are not used as backup materials?"

Suddenly, Qin Guan was happy. CD backup is a very common means in future generations. At the right time, his own side developed the CD system again. It's much easier!