Red Soviet Union

When he said these words, Andre's heart was filled with great emotion.

This sentence is not said by Andre, nor is it falsely said by later generations. This sentence comes from Harry J. Hillackel, who is the chief designer of General Dynamics Flight Systems in the United States, and is also the F-111 and F- 16 Chief Designer. At the same time, his other identity is one of the absolute core four members of the Fighter Mafia: the four members include John Boyd, Harry Hillackel, Pierre Spry and Riccione. The energy mobility theory they created and perfected guided the design of later fighter aircraft.

This sentence is what Chiracer said at the bidding meeting for advanced fighter technical documents. At the bidding meeting a few days ago, many companies used canard or even forward swept wing designs in their designs. Facing these designs, as the host The authority of the meeting, Hillackel said mercilessly, that the canard is of no value, and its best place to install it is on the enemy's aircraft!

This sentence is not unreasonable. The canard is a layout method in which the horizontal stabilizer is placed in front of the main wing, and the horizontal stabilizer is installed at the back, which is the most common tail.

The history of the canard is actually very long. When the Wright brothers invented the aircraft, they used the canard. However, due to various technical defects, this canard did not become popular until after the telex operation was successfully developed. Duck layouts are only starting to reappear.

Compared with the tail layout, the duck layout has advantages. This advantage is better played on statically unstable aircraft. For example, the ordinary trim level tail produces negative lift, that is, the aircraft wants to climb. First, the **** has to be pressed down. . The canard generates positive lift because it is in front of the center of gravity. Pull up the operating lever, and the nose will be lifted directly.

At the same time, the most prominent contribution of the canard is the effect of the detached vortex pulled by the canard and the effect of stabilizing the main wing boundary layer, which can help the aircraft improve the stability and lift coefficient at a large angle of attack. In current aerodynamic theory, the use of eddy currents is crucial.

When taking off, the forward deflection of the canard can greatly increase the lift and reduce the rolling distance; when landing, it can be used as a speedbrake without using the back speedbrake.

These are all advantages, but canard wings also have disadvantages, the most prominent disadvantage is stealth! When the canard moves, the reflected radar waves generated increase by orders of magnitude, which is not conducive to the stealth of the fighter. At the same time, the aerodynamic interference between the canard and the main wing increases nonlinearly with the speed, so it is difficult to control and increase the fly-by-wire operation. Because the canard is far closer to the center of gravity than the flat tail, it requires a much larger deflection of the rudder area to achieve the effect of trimming and controlling the aircraft, and there is a high angle of attack. increased trim drag and reduced maximum trim lift.

It can be said that the advantages and disadvantages of canard wings also exist.

In later generations, European typhoons, gusts, Gripen, and China's J-10 all use duck-style aerodynamic layouts. From a simpler point of view, this is a typical lack of power, and aerodynamic layouts are used to make up for it. , because there is no advanced high-thrust engine, this compromise has to be adopted.

In the United States, the strength of science and technology is the strongest, especially the engine, which is simply alien technology. As long as the engine is good, a brick can fly! The fourth-generation aircraft in the United States used an engine with a thrust-to-weight ratio of 10. In later generations, only the United States can achieve it.

And Huaxia, because it is limited by the engine, has to use the duck layout in the fourth-generation aircraft. After all, the design of the J-20 is very advanced in all aspects, but the engine is still the weakness. During the test flight, the AL- The 31F came to make do. Although the progress of the Taihang engine and the updated turbofan-15 engine are constantly reported, it is still a question mark. There are many difficulties in the engine problem, which can only be made up from the aerodynamic point of view. The duck layout is A last resort.

(I heard that the turbofan-15 has really matured, and I wish our defense industry will continue to be strong!)

Andre, who came from later generations, is well aware of the various drawbacks of canard wings, and now, building canard wings on the basis of Su-27 is a superfluous behavior! Because the Su-27 is originally a conventional aerodynamic layout, adding canards on this basis makes it the only aircraft with a three-wing layout in the world, and the advantages will be offset by the disadvantages!

There is evidence in later generations. In addition to the original Sea Flanker Su-33 with three wings, only Asan like India used three wings and "brilliant" thrust vector control technology under Russia's flickering. Yes, there is almost no more. Even the Su-35, the old-fashioned three-wing layout, has been replaced with a conventional layout. The use of canards on the Su-27 series aircraft is absolutely tasteless.

That's why Andrei strongly opposes it.

Now, although Andre's position is not high enough, Andre's right to speak is the most important. At the beginning, Andre strongly supported the T-10's overthrow and restart, and the current Su-27 was created. And now, Andrei is strongly against canards.

Cut off these projects that develop canards! With these abilities, work harder elsewhere!

Andrei's words made Simonov's old face red. This canard~www.readwn.com~ was actually proposed by Simonov, but now, it has been ruthlessly criticized by Andrei.

Looking at Simonov's expression, Andrei knew that he was hosting, so Andrei's words slowed down: "Comrade Simonov, our new fighter needs to have balanced performance. If you just want to highlight the maneuverability too much, it will inevitably affect other performances, for example, for the new fighter, stealth will be related to the survivability of the fighter, and it must be regarded as a key point.”

Invisibility! This is what Andre attaches to the most. After all, in the future of China, when facing the threat of the American F22, I don’t know how detailed analysis I have done, but there is only one conclusion. If you want to fight against F22, you must To have the same stealth aircraft! This is also the reason why the country has made great efforts to develop the fourth-generation aircraft!

"At the same time, in order to detect the other party's stealth aircraft, we need our fighters to have more powerful radars, and we do not need the backward passive phased array radars with huge size and weight, which are not the electronic equipment of the fourth-generation aircraft, our active phased array radar. Array radar, how is the progress?" Andre continued to ask.

The layman is watching the fun, the expert is watching the doorway. Andrei came here, not just to follow Ustinov and Kordunov. Many of Andrei's proposals are even more than professional designers. Foresight. (To be continued.) To find this site, please search for "" or enter the URL: