Yang Weiping did not give much explanation to Professor Hook and his assistants, and continued with a stern expression:

"As required by the new EFA program, I have established an international designation for this engine, RB119-TR-100. In order to achieve the two characteristics of large thrust, high thrust-to-weight ratio, short take-off and landing capability for fighters, and large thrust without afterburner, good speed characteristics, and supersonic cruise capability without afterburner, the design parameters of RB119 must meet the following indicators:

The air flow control ratio should be within 126, the fan pressure ratio should be controlled within the range of 4.0~4.5, the throttling ratio should be in the range of about 1.08~1.13, the total boost ratio should not be less than 26, the temperature before the turbine should not be less than 1975, the bypass ratio should not be higher than 0.3, the intermediate thrust should not be less than 105 kN, the maximum thrust should not be less than 156 kN, the intermediate fuel consumption rate should not be higher than 0.062, the maximum fuel consumption rate should not be higher than 0.185, and the thrust-to-weight ratio must be greater than 10. ”

Obviously, Yang Weiping's requirements for RB119 are even higher than those of WS15. This is mainly reflected in the pre-turbine temperature and thrust-to-weight ratio.

The pre-turbine temperature of WS15 is about 1935~1950K, and the thrust-to-weight ratio is 9.8.

The pre-turbine temperature requirement of RB119 shall not be lower than 1975K, and the thrust-to-weight ratio shall be greater than 10.

With such high design requirements, Professor Hook and others realized that this would definitely be a strong heart for an epoch-making advanced tactical fighter!

As Yang Weiping's words fell, Professor Hook and his assistants were immersed in the design of the fourth-generation military turbofan engine described by Yang Weiping.

In view of the characteristics of this RB119 engine with low bypass ratio, high entrenchment pressure ratio and high total pressure after turbine, it will inevitably increase the fuel consumption rate in the state of no afterburner. Therefore, it is possible to have a high fuel consumption rate without afterburning. After analysis and calculation, for the RB119 that pursues high unit thrust, low take-off weight and supersonic cruise capability without afterburner, its cycle characteristics are:

The low bypass ratio is 0.3, and the medium total pressure ratio is 26.1. The high turbine pre-temperature control is 1860K/2011K, and the high throttle ratio is 1.08, which is completely achievable under the premise that the material properties are satisfied. In order to ensure continuous supersonic cruise capability, the temperature before the turbine may increase with the increase of Mach number.

In this way, the RB119 engine proposed by Yang Weiping basically follows the following concept in terms of overall performance design: in order to make the supersonic cruise performance in a relatively optimized state. The design point cycle parameters of the RB119 engine are basically the same as those of the supersonic cruise point, and a high cycle parameter is selected, while the ground bench working point or take-off point adopts the state of lowering relative to the design point to reduce the load of the engine and ensure the service life.

To sum up, the overall performance design of the RB119 engine required by Yang Weiping fully reflects the characteristics of the fourth-generation fighter engine, follows the general rules of aero engine performance design in the selection of cycle parameters, focuses on the needs of supersonic cruise without afterburner, and selects a small bypass ratio, ultra-high pre-turbine temperature, moderate fan pressure ratio and total boost ratio, and high throttling ratio to meet the requirements of thrust and fuel consumption rate.

A pre-turbine temperature of no less than 1975K requires a lot of new materials and efficient cooling technology. This is enough to prove that OUCC has been at the forefront of the world in the field of aviation materials research and development, and if this RB119 can be successfully developed, it will definitely represent the highest level of fighter engines in the world today.

From this point of view, Yang Weiping sincerely wants the new EFA to plan to develop the world's most powerful advanced tactical fighter! When this F22 fighter comes out, it will definitely shock the whole world and make the French regret it!

Professor Hook looked at Yang Weiping with a heartfelt admiration, and couldn't help asking, "Dear Yang Fuhrer, are you really sure that you want to apply the best new aerospace materials and high-efficiency cooling technology of OUCC to the new EFA program?"

"Professor. If more advanced new aerospace materials and efficient cooling technology are not adopted, do you think the new EFA plan can successfully develop RB119?" Yang Weiping asked indifferently: "Do you think that if OUCC does not come up with some real materials?" And how can you convince the governments of West Germany, Italy, and Spain?"

"Science knows no borders! Führer Yang is worthy of being the strongest mentor for the development of science and technology in the world today!" Professor Hook put on a top hat for Yang Weiping with great admiration, "With the new EFA plan, Europe will definitely be able to surpass the United States and the Soviet Union in the field of aerospace science and technology development!"

……

At the urging of Margaret Thatcher and Professor Hooke, among others, Italy, West Germany and Spain soon agreed rather simply to OUE's participation in the new EFA program. The leaders of the five countries formally signed the relevant terms of the agreement in the new EFA plan, and formally determined the project plan for the RB119 engine and the F22 fighter, which is expected to be completed within five years for the trial production of the RB119 engine and the development of the F22 fighter demonstrator.

With the initiative of Margaret Thatcher and Queen Elizabeth II, Britain has become the third permanent member of the United Nations to formally sign an all-weather strategic cooperative partnership with the Eastern Union Union, following the Soviet Union and China.

Arguably. So far, Yang Weiping's visit to WÈN has basically achieved the expected goal, and has laid the foundation for OUCC to become a world-class power in the international community.

At the same time, when the Huaxia Second Aviation Industry Group was demonstrating the upgrade plan of the Jian-14 Raptor fighter proposed by the Eastern Union, there was a serious leak of secrets.

Originally, in history, the variable swept wing technology developed from the 50s of the 20th century to the 80s of the 20th century, and a series of excellent aircraft represented by the American F-14 and the Soviet Tu-160 were produced. However, limited by the development level of materials science, computer technology, sensor technology, flight control system and other scientific and technological development at that time, the development of variable sweep wing technology encountered a bottleneck.

Although these alternative technologies alleviate the problem of both flight and control at high and low speeds, these alternative technologies still have limited effect on improving the flight performance of the aircraft compared with the F-14 fighter that can change the sweep angle in any flight state to improve flight performance. The use of variable sweep wing technology is a guarantee of a series of contradictory requirements for modern supersonic aircraft.

However, on this plane, thanks to the guidance and guidance of Scientist Yang Da, the strongest mentor in the field of science and technology in the world, the World Science and Technology Tree has been able to develop at an unprecedented speed on a correct development path. It can be said that the level of scientific and technological development in the world today is infinitely close to the level of Yang Weiping in the early 90s of the last century, and in particular, the development of the electronic and computer fields has reached the level of the previous century in 1999.

As a result, in the research and development of variable swept wing technology, along with the development of materials, control and other technologies, OUCC and Huaxia have basically met the technological accumulation of breakthroughs in the realization of heavy dà.

No, the most outstanding elite female agent of the CIA Asian Branch, "Queen Bee" Li Meiqi, stole the "J-14 Upgrade Demonstration and Analysis Report" from the Huaxia Second Airlines Group, which was transferred to Grumman by the CIA headquarters, and immediately attracted the attention of Grumman's senior management.

In the new round of upgrade plan, the Jian-14 Raptor fighter made by Huaxia imitation of the American F14 is expected to solve the three major problems that Grumman has not been able to solve: first, the reasonable rotation (drive) mechanism of the nursery plan to simplify the variable sweep system and solve the problem of aircraft overweight and reliability; second, select the appropriate position of the rotating shaft and reasonably determine the variable sweep wing change range to reduce the change of the aerodynamic center; third, comprehensively consider the performance requirements and handling requirements.

In view of the problems of large weight and unsatisfactory reliability of the variable sweep drive mechanism, OUCC proposed a new design concept of elastic variable sweep mechanism with adaptive characteristics for Huaxia, and the rapid development of shape memory alloy also provides a new design idea for the variable sweep drive system of variable sweep wing aircraft.

The shape memory alloy will produce a large deformation under the action of external stimuli (heat, electricity, magnetism, temperature, light, etc.), and will return to its original shape after a certain period of time after the external stimulus disappears. The use of shape memory alloys in the wing structure can provide the driving force for the wing to become rich. Using the drag and torsional torque of the wing during flight as the driving force, as long as the relationship between the drag resistance and torsional torque of the wing of the aircraft is found with the flight speed, and the optimal sweep angle of the aircraft in each flight state is found, this method of adaptively changing the wing sweep angle undoubtedly provides a new solution for the variable sweep wing technology.

Such a genius idea of the Chinese people obviously opened a door of God for Grumman.

If OUCC's shape memory alloy technology can be obtained, and then OUCC's professional computer software specially designed for variable sweep wing drive changes, Grumman is fully expected to successfully develop the "stealth cat" that stays on the drawings.

The Chinese absolutely must not be allowed to take the lead in successfully developing the "stealth cat"! The top management of the Grumman Corporation immediately gave feedback to the Pentagon and the White House on this information.

Pentagon generals and White House aides held an emergency joint discussion meeting at the White House, and in the end, President Reagan made a decision to demand that the C.I.A. steal SMA technology and variable sweep wing drive change analysis software from OUCC at any cost.

President Reagan's attitude is very clear: The United States has shamelessly stolen the voiceprint characteristics of the US "Lobinji" class attack nuclear submarines, with the result that US interests are about to face unprecedentedly severe losses, and the United States must teach the United States a lesson and treat the United States the way it treats! The United States must get all the core technical secrets of the Eastern Union! The United States must be clear about all the strategic plans of the Eastern Union!

Since there can be no military conflict with the Eastern Union on the surface, the United States must win a complete victory on the underground espionage front! (To be continued......