After getting the approval of the leaders, Duan Yunpeng led the designers to start the detailed design and related subsystem parts development.

You must know that the supersonic fighter bears a greater overload than a subsonic aircraft, so it also has higher requirements for the airframe structure.

There is no need to conduct wind tunnel tests now, because Duan Yunpeng has the help of the system, and the peregrine fighter he designed, needless to say, will definitely be able to meet the design requirements.

Conventional aerodynamic layout with edge wings, single-engine, single-seat, two-ribbed air intake, single vertical tail.

So the structure is designed, and the air weight is about eight tons, although it is said to be a little heavier, after all, the later F16 fighter is only more than eight tons, but it is already very strong in this era.

Eight tons of empty weight, plus three tons of internal oil, and three tons of external weight, is fourteen tons.

Of course, under normal circumstances, the normal take-off weight is only about 11 tons, because the usual air combat will not be plugged in, because this will affect the maneuverability, and if there is an add-on, it will not be able to fly at supersonic speed.

If the airspace of the combat target is far away, it is necessary to attach an external auxiliary fuel tank.

When it's time for air combat, throw away the drop fuel tanks immediately.

As for the airborne radar, it is definitely not there now.

Don't even think about the fly-by-wire flight control system, so the Peregrine fighter is probably equivalent to the aerodynamic shape of the third-generation aircraft and the avionics weapon level of the first-generation supersonic fighter.

The addition of the wing gives the Peregrine Falcon fighter a very good maneuverability, especially at medium and low altitudes at subsonic speeds.

Because the airflow from the leading edge of the edge wing separates a stable vortex, when the high-speed rotating airflow acts on the upper surface of the wing, the negative pressure on the wing surface is increased, and the strength of the vortex increases with the increase of the angle of attack, resulting in a large vortex lift.

The earliest edge wings in the history of aviation began with the SR71 reconnaissance aircraft in the fifties.

But now history has changed, and in the forties there will be a strip wing, which is actually equivalent to an elongated wing with a sweep angle of nearly 90 degrees.

With higher lift, then the aircraft is more fuel-efficient and maneuverable.

The supporting afterburner turbofan engine is also a difficult point.

Therefore, Duan Yunpeng had already completed the design of the engine, and at that time he still did it himself, making the design of the engine.

This engine, with an afterburner thrust of 80,000 N, is definitely an engine with a lot of thrust, and you must know that the German jet engine of the same period has not exceeded 10,000 N.

However, because the engine is the same as the turbofan engine core of the Boar attack aircraft, it saves a lot of trouble.

From the turbine rotor, combustion chamber, compressor, afterburner and tail nozzle, Duan Yunpeng personally designed the plan and handed it over to the designers to make a detailed design.

As for engine control, it is also a difficult point, and now there is no computer, so it can only be controlled by mechatronic methods.

So now, after the leaders approve the project, the supporting turbofan engine is ready to start testing.

This time, the leaders of the Eighth Route Army also came, and they didn't want to miss such a good opportunity to visit, after all, this was the world's first afterburner turbofan engine test run.

The ground test is very important because it is a critical step in ensuring the reliability of the engine test flight.

At present, there is no high-altitude test bench, so usually after completing the ground test car, it is directly loaded on the plane for test flight.

Today will become the most important new chapter in the history of aviation, the world's first afterburner turbofan engine, ready for commissioning.

Now Duan Yunpeng and the leaders have come to the test workshop.

The test plant is capable of testing a wide range of aero engines, from turboprop engines, to turboshaft engines, to turbofan engines.

The engines of the previous models were also tested here.

Now Duan Yunpeng directly skipped the turbojet engine, because the turbojet is indeed fuel-intensive and not easy to use.

So I directly engaged in turbofan engines.

On the test bench, the afterburner turbofan engine Yimeng has been installed, the cover in the front, and the exhaust gas directly to the outside of the workshop.

A leader of the Eighth Route Army exclaimed: "This is really a miracle in the history of aviation, Comrade Duan Yunpeng, there should be no problem with our Yimeng turbofan engine, right?" ”

Duan Yunpeng said with a smile: "Leaders, please rest assured, our engine is based on the mature Taishan engine, with the addition of afterburner, there must be no problem, let's see its performance later!" ”

The engine test bench is also equipped with some data collection devices, such as thrust and fuel consumption, which can be displayed on the instrument.

Inside the control room, the leaders are ready to witness the miracle.

Duan Yunpeng began to give instructions, and the test operator began to let the engine run coldly according to his instructions, which was running without ignition, so that the lubricating oil could fully lubricate the various parts of the engine, and it was also a run-in.

This avoids running at high speeds and leading to premature engine obsolescence.

After all, an engine is still very expensive now, so you have to save a little.

After running cold for more than ten minutes, Duan Yunpeng gave the order to ignite.

As the test operator pressed the ignition button, he saw the Yimeng turbofan engine on the test bench, and the tail nozzle flashed with fire, and then it ignited successfully, and the engine roared.

At this time, of course, there was no afterburner, so the roar was not very loud, and there was no infrared tail flame at the tail nozzle, only the hot air flow that erupted.

At this time, the leaders can see that the engine thrust displayed by the instrument in the control room is currently in a slow state, only a few thousand Newtons.

It's going to take a while before you can get the throttle back.

So ten minutes later, Duan Yunpeng gave another command and began to increase the thrust.

I saw that the pointer on the instrument began to turn, and soon the thrust reached forty-eight thousand N, which was already the maximum thrust without afterburner.

It's finally time for the exciting time to start the afterburner.

Duan Yunpeng decisively ordered, and the test operator was also full of confidence and turned on the afterburner.

I saw that the roar was louder, and a spectacular orange-red tail flame appeared in the tail vent.

The leaders all exclaimed, this engine is too powerful, and the thrust soon soared to more than 70,000 N.

Duan Yunpeng said with a smile: "Leaders, see it, our afterburner turbofan engine is like this when it is afterburner, and then the fighter can break through the sound barrier." ”

The leaders were very happy, and after a few minutes of operation, the afterburner was turned off, because this could not be turned on for a long time, otherwise the engine would be scrapped.

The leaders also opened their eyes this time and were very happy.