The technology of ground effect aircraft cannot be said to be so advanced, and countries such as the Soviet Union, China, and Saudi Arabia are about to master it. It is entirely possible to exchange some good things with the Americans while there is still so little value.

With the scientific and technological strength of the Americans, it is not impossible for them to develop it. It's just that the major US companies have not yet eliminated the grievances and cannot concentrate their forces together. Of course, they are both private enterprises, and it is difficult to integrate them together. America is again a nation of immigrants with too many camps.

This is also the reason why the United States has built several technology towns, which have not yet been fully formed. It is estimated that the final result will not be very good, or even become a joke.

The F-15 fighter; nicknamed the American Eagle, is a U.S. Air Force third-generation supersonic jet fighter.

The F-15 fighter adopts a tandem two-seat swept-wing aerodynamic layout and is equipped with two turbofan engines, which has high mobility combat capabilities. The aircraft has perfect all-weather combat capabilities, can use advanced medium-range air-to-air missiles to destroy enemy aircraft, mainly carry out air superiority combat missions, and develop air-to-ground combat variants.

The F-15 fighter jet was developed by McDonnell Douglas and developed from the F-X program launched in 1962. It was won by McDonnell Douglas in 1969. It flew for the first time in July 1972, and the first mass-produced model was delivered to the US Air Force in 1974. It has been in service for more than 40 years, with a total production quantity of more than 1,200, dozens of various modifications, and exported to six countries. Participated in more than 100 wars of various sizes and shot down more than 100 enemy aircraft. In the early 21st century, it was successively replaced by the F-22 fighter jet.

Even in later generations, the F-15 is the most successful heavy air superiority fighter. The combination of the F-15 Eagle and the F-16 Fighting Falcon is very successful, and it can be said that the United States guarantees foreign air superiority.

McDonnell Douglas owns so many excellent military aircraft such as F-15, F-18, C-17, etc., and it was finally acquired by Boeing. I don't know what McDonnell did, and it is understandable to say that he is the first prodigal in the United States. .

At this time, for Americans, the status of the F-15 is very important, and it is difficult to get it.

Based on its high price, in addition to the United States, only three countries such as Israel, Japan, and Saudi Arabia have used it in the early days. After that, countries such as Singapore put forward purchase demands. There is also the F-15K, which is based on the F-15E and sold to South Korea. This is the first F-15 to use a GE engine. Before that, the F-15 used Pratt & Whitney engines.

At this time, Little MacDonald acted as the narrator and said to Bao Zixuan: "The F-15 fighter fuselage is an all-metal semi-monocoque structure, and the fuselage consists of front, middle and rear sections. The front section includes the head radar. The main structural material of the hood, cockpit and electronic equipment compartment is aluminum alloy. The middle section is connected to the wing, and some titanium alloy parts are used to bear the heavy load, accounting for about 20.4% of the weight of this section. The first three frames are aluminum alloy structures, and the latter three One is a titanium alloy structure. The rear section is a titanium alloy structure engine compartment. The flat tail with the zigzag leading edge is a full-motion flat tail, which has a large area and can meet the needs of high-speed flight and maneuvering."

"The wing design adopts a cut-tip delta wing shape, which can improve the wing structure and increase the internal volume of the aircraft. At the same time, it can make the increase of the aircraft's resistance in the transonic region become more gradual, and the focus movement of the aircraft at transonic speed is also smaller. Reduced trim drag."

"It's definitely the most advanced fighter jet in the world, and it doesn't have one. As for the F-14 Panda fighter jet produced by Grumman, it's still a long way from him."

"However, this is an absolute secret of the US Air Force. As a manufacturer, I dare not promise anything easily. I hope you can understand."

The American Eagle is not called for nothing, which is why the old William would rather provide Heiyun with some production techniques and details of the F-18 fighter jet, and dare not mention the F-15.

Bao Zixuan said with a smile: "Every company has its own difficulties, not to mention military products can never be decided by one company."

"This visit to McDonnell Douglas is really eye-opening. It seems that the Black Cloud Group still has a long way to go."

Little MacDonald replied: "It can't be said that, the black cloud is much better, at least the government will not intervene excessively."

In fact, this is true at all. The British never thought that the development of Heiyun Group in Hong Kong would be so fast. It's almost unbelievable, and at the same time it doesn't feel like it's so real.

The previously signed bill stipulates that Hong Kong has strong autonomy in the commercial field and is a well-known free port for international trade.

But that's just for general merchandise, and the same applies in the UK. Who would have thought that a company like Heiyun could appear in the technological desert of Xiangjiang. Before the bill is amended, the Black Cloud Group can only be allowed to sell weapons and equipment to any country in the world.

Maybe Batumi can restrain it, but Xiangjiang is also in the embargoed area of high-end precision instruments in Batumi. Is it necessary to prevent the country from transporting precision instruments to Xiangjiang, and at the same time prevent the Heiyun Group from selling weapons and equipment to countries within the scope of the ban? There is no such truth in the world, and people can ignore it completely.

Now Batumi is also one head and two big, I don't know what to do. Amendments to the ban bill are currently underway to include Hong Kong in the same treatment as the UK.

Bao Zixuan: "Once you see it, you have it. I didn't say that I must bring the technical data of this aircraft back to Hong Kong. And every company has core secrets, which are the capital of the company's life."

"You can look at other things, McDonnell Douglas should have a lot of good things!"

A ghost fighter-bomber similar to the Heiyun HH-01 appeared in front of him, which surprised Bao Zixuan. Because according to historical development, this failed model should not appear.

The 12 is a stealth attack aircraft developed by McDonnell-Douglas and General Dynamics. It is the U.S. Navy's first attack aircraft designed to penetrate deep into the enemy's territory for long-range strike missions, and it is also the first stealth carrier-based aircraft invested and developed by the U.S. Navy. The U.S. Navy plans to replace the long-serving 6 Intruder attack aircraft, and the U.S. Air Force plans to procure it to replace the F-111 Aardvark strike fighters that have been in service since the mid-1960s. However, in the 1990s, U.S. Defense Secretary Chaney announced the termination of the entire R&D program due to budget overruns, excessive airframe weight, and delays in the development schedule.

The 12 was originally planned to replace the 6 attack aircraft in the mid-1990s, using what is said to be far more advanced stealth technology than the Air Force's F-117A, and its payload capacity is far greater than that of the "Nighthawk". Compared to the 6E, the 12 is faster, has a longer range, and can carry a large number of weapons in the internal bomb bay to reduce drag and maintain a low radar cross section profile. Like the ATF, the 12 is expected to have higher reliability than existing aircraft while requiring half the maintenance man-hours.

In terms of specific indicators, in addition to requiring good stealth performance, 12 is also required to have a 60% larger combat radius than 6E, 40% higher bomb load, low-altitude horizontal acceleration performance, instantaneous hovering angular velocity and maximum hovering The angular velocity is better than that of the 6E. Even the maximum hovering angular velocity is comparable to or better than the F-18C. In the case of ground attack, the area of the bombed surface relative to the 23mm anti-aircraft artillery bomb should be equivalent to the 10 or only 1/12 of the 6E and 1/5 of the F-18C.

McDonnell Jr. said with a smile: "McDonnell Douglas and General Dynamics started the research and development of stealth aircraft as early as 1981, but they were not in such a hurry at that time. It was not until after seeing the great success of the Black Cloud HH-01 Ghost Fighter Bomber. , to speed up the development speed.

Hearing this, Bao Zixuan fully understood, and also knew that it was because Heiyun had the HH-01 Ghost Fighter Bomber that little MacDonald dared to bring him here. Ordinary partners are very worried about leaks, but they don't have so many scruples about Bao Zixuan. After all, Heiyun has already come to the forefront of the world in terms of stealth bombers, and maybe he can give some valuable opinions.

Bao Zixuan knew that the 12 was troubled by the extensive use of composite materials in its structure. Composite materials did not achieve the desired weight reduction, and some components ended up having to be replaced by heavier metal parts. There are too many openings in the skin of the abdomen of the aircraft, and the two wing spars bear a lot of load and must be strengthened. The weight of the aircraft exceeds 30 tons, and the aircraft is 3,630 kilograms overweight, 30% overweight than expected, approaching the upper limit of the weight of the aircraft carrier. Electricity development is generally delayed.

Like the DC-10 three-engine airliner, the 12 project is doomed to fail. However, Heiyun already has the HH-01, which is enough for now; McDonnell Douglas' 12 will let them play by themselves.

At the same time, I also somewhat understand the reason why McDonnell Jr. played a bad hand with a good hand. With so many failed projects, F-15 and F-18 are not making enough money to post it.

Afterwards, Bao Zixuan visited the production lines of F-18, 4 and other aircraft, which was regarded as a comprehensive understanding of McDonnell Douglas; at the same time, he was shocked by the background of the American aircraft manufacturing company.

If an acquired McDonnell Douglas can do this, then what a more powerful Boeing, Lockheed, Pratt & Whitney and General Dynamics will look like; I can't imagine it.

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