Get radar from the outside world? What does that mean?

First of all, Qin Feng ruled out obtaining technology from the Soviet Union, which is impossible, and now the Soviets already have the first generation of Tu-126 early warning aircraft, and they are also developing the second generation of early warning aircraft, but it is impossible for them to give the technology to their own side.

It was definitely the Western world, and in the Western world, Britain was the birthplace of radar, which began to be applied in World War II, and after the war, radar technology for the British was constantly evolving.

Now, the British are also engaged in the technology of early warning aircraft in the air, and they have adopted the body of their own hunting anti-submarine aircraft to improve it into an early warning aircraft, this kind of aircraft is very distinctive, and it does not put a large plate on the back of the aircraft, but uses a radar in the nose and tail of the aircraft, and the front and rear tubes are 180 degrees to complete a circumferential air defense.

However, the technology of the British in recent years has not been comparable to that of the United States, and it is said that they have encountered various insurmountable problems, and they do not know how long they will develop.

Moreover, this is the way of the front and rear radars, puffing up a big ugly nose, and not the way of such a big plate.

Now it seems that this big plate should be the same as the E-3!

Qin Feng knew that this must involve some top-secret information, which should not be known, and if he didn't ask, he would attend the meeting by himself, and what he could hear was what he could hear.

"This large plate is not round, according to the information provided by the provider, it is an oval cross-section, 9.1 meters in diameter and 1.8 meters thick. The central section is an aluminum skin reinforced rib structure, and the lower part is fixed to the rear fuselage by a turntable structure and two pillars. Ma Lao continued: "We made a full-scale model according to the information given by the provider, and conducted a large number of wind tunnel experiments, and the results of the experiment showed that our aerodynamic layout was not affected at all. Normal flight can be guaranteed. ”

When he heard this data, Qin Feng finally determined, that's right, it was the size of the radome of the E-3!

It's hard to believe that the Americans are willing to provide this kind of technology to themselves? In the past, this was something that was even thought of!

Of course, there are many stories in this.

The former president of the United States is Carter, this president likes peace very much, he doesn't like war, and he doesn't want to sell advanced weapons, so there is a plan for F-16-J79, and after President Reagan took office, these export bans have been lifted, and even President Reagan is thinking about how to scold the Soviets.

After all, in the Cold War, the battlefield in Western Europe was on the verge of breaking out at any time, and once the war broke out, there was no hope of victory, and then the East would be a new strategic location.

It was possible to contain the Soviet Union very well, and even at a critical time, to draw the flames of war to the East, the security of Western Europe could be guaranteed.

Under these circumstances, President Reagan attaches great importance to China, and constantly opens the export ban, and all kinds of advanced weapons can be exported to China.

It won't be long before Grumman will come.

In the research and development of the E-3, the Americans spent a lot of money, and they equipped this AWACS aircraft themselves, with only 34 aircraft, even if they were sold to Europe, the total number was more than 50 aircraft, so that the cost of research and development could not be effectively shared, and they wanted to sell more fighters.

Therefore, pragmatic Americans will not give up a large blank market so easily, and it just so happens that the honeymoon relationship between the two sides is gradually improving. Companies including Westinghouse and Hughes have pushed for the sale of E-3 "Watchtower" AWACS aircraft to China.

It would be great if the Chinese Air Force could buy the E-3 as a whole, but given China's economic capabilities, this is a bit too idealistic, so they offer an additional option, if the Chinese side wants, it can sell the radar equipped with the E-3 separately.

This plan has received the attention of the Air Force, if only the radar system is purchased, then it is installed on its own Yun-10, which is definitely the best plan, after all, the E-3 uses the airframe of the Boeing 707, and its own Yun-10 is very similar to the flight performance of the Boeing 707.

Now, Ma Lao is also very excited, he knows that the last hope of Yun Shi is here, his years of hard work, he doesn't want this to be in vain, the civil aviation department doesn't want it now, he desperately wants to recover in the army's project.

Not only early warning aircraft, if the Air Force is satisfied, the electronic warfare aircraft, air tankers, etc., that the Air Force needs in the future can be improved from the platform of Yun-10!

Ma Lao continued: "We know that this radar is not fixed, when the radar is working, the rotating radome is hydraulically driven, 6 revolutions per minute; When the radar is not working, 1/4 revolution per minute to maintain the lubrication of the bearings. So, instead of just doing a fixed wind tunnel experiment, we also rotated the radar antenna to test its performance. ”

As he spoke, Ma Lao turned the radome on the top of the model, and sure enough, it could rotate, and there would be a motor in it to drive it to rotate.

"What about its powertrain?" At this moment, someone asked a question, and it was obvious that everyone attached great importance to the research and development of this aircraft, and they were also experts.

Qin Feng also frowned, that's right, the biggest problem with this aircraft is its power system.

Yun 10, which used to be a key project of the state, has been given special attention, and when it was developed, it was also equipped with a turbofan-8 engine.

However, this is obviously not in line with the law of engine development, in the Western world, the core engine is developed first, and after the core engine comes out, it is equipped with a small fan, which is the turbofan of the fighter, a large fan, which is the fan of the passenger aircraft, and various accessories are improved, that is, the marine gas turbine, and so on.

When they developed the core aircraft, there was no obvious target for installation, and the engine was developed five years earlier than the aircraft.

And now what about the country? It is the aircraft project first, and then the corresponding project engine, so that the engine lags behind.

Qin Feng has been to Shenyang, and has seen the turbofan-6 on the bench, that engine, after so many years of research, there is still no result, his own large aircraft, the engine problem is very serious.

"The turbofan-8 engine is still in the test stage for the time being, and our Yun-10 is still using the JT3D engine when it is in the test flight." Ma Lao did not deny this, because the civil aviation purchased a large number of Boeing 707 aircraft, naturally there are a considerable number of spare parts, and now, Yun Shi uses this kind of backup engine.

Both engines, both of which are of the level of 8,000 Newtons, are used as engines for passenger aircraft, which are qualified, and the main problem is reliability, but if they are used in AWACS aircraft, they will not work.

The domestic Air Police No. 1, when it was developed, had to increase the power of the engine after it was installed with radar, in order to fly stably, and now, this early warning aircraft is also like this.

The Americans' E-3 AWACS aircraft, using the Pratt-Whitney TF33-PW-100/100A turbofan engine, a single thrust of 93.4 kN, the power increased by 10 percent, this is enough, if you get on the horse, what should you do?