Chapter 375: The Variable Sweep Wing Never Goes Out of Style

The times are constantly advancing, and technology is also constantly developing, which can also be seen from the airplane.

At the beginning, the first planes had different shapes and types, but after World War I, the shape of the aircraft was fixed, the fuselage, wings, tail, just these parts, the engine was almost in front.

In the jet age, it began to continue to develop, the swept wing replaced the straight wing, the engine was installed in the tail of the fuselage, and at the same time, the fuselage of the aircraft was also quite elongated, so as to reduce the air resistance and began to sprint towards the speed of sound.

The same was true of the era of second-generation aircraft, and later, the technology of variable swept wing arose.

This technology, derived from the exploration of the wing, swept wing, is suitable for high-speed flight, but the low-speed performance is very poor, and some high-speed fighters have repeatedly failed when pursuing low-speed propeller aircraft.

In this way, if the sweep angle of the aircraft can be changed, the flight performance at different speeds can be balanced. Therefore, a large number of variable-swept wing fighters began to rise, typical representatives, such as F-14 Tomcats, F-111 fighter-bombers, Tornado fighters, and MiG-23 and so on.

However, the wing can be rotated, which leads to the complexity of the structure, the inconvenience of operation, and the increase in the failure rate, and then, the trend of the aviation world, and began to turn to the side wing, the wing body integrates these characteristics, like the typical Su-27, the whole aircraft, it looks like a lifting body, the shape is extremely smooth, quite beautiful.

And now, it is the period of how to use the vortex lift force to improve the high angle of attack performance of the fighter, so in this era, a significant thesis is the outdated theory of the variable sweep wing.

At the same time, in fact, it is also the case, after this era, any new fighter, which no longer uses the technology of a variable swept wing, has returned to normal.

Now, Nathan says that if you develop on the basis of Tomcat, of course there will be opposing remarks, how to refute these remarks?

Nathan smiled: "Variable sweep wing obsolete?" What a rat-eyed statement, our variable sweep wings, never go out of style! No matter how much aerodynamic technology develops, the flight performance of the fixed wing will never really surpass the VG wing! ”

That's how those short-eyed guys came to fool Congress, and those idiots in Congress agreed with such a statement.

"For example, with our current aircraft, with the mature design of the variable-sweep wing system, the landing speed can be as low as 130 knots, compared to 145 knots for the previous F-4 Phantom. Conversely, the variable wing also brings high speed, reaching Mach 1.35 at 5,000 feet and Mach 2.51 at altitude, not forgetting that we can also carry 4 Immortal Bird missiles! Nathan said, "Let those guys in Congress compare, is there any fighter other than our Tomcat that can do it?" ”

Now these data are achieved in the case of the backward TF30 engine, if the latest engine is replaced, the performance will definitely be further improved.

To have high speed, to have low speed, this is the biggest advantage of variable sweep wing, look at the most advanced F-15 in the Air Force, relying on two F100 engines, at high altitude also soared out of Mach 2.5 speed, however, this is not any mount situation, when the mount missile, it is only a Sparrow missile, and it can only reach about Mach 2.0!

There is no fighter that can be compared with the Tomcat, the Tomcat is invincible in the sky!

"That's the biggest advantage of our variable sweep wing, if we continue with new engines." "We can even achieve supersonic cruise without afterburner," Nathan said. ”

What is cruising called? That is, the long patrol flight of the aircraft.

Any fighter can almost be supersonic at top speed, even a perverted cargo like the MiG-25 that reaches the Mach 3 factor.

However, these planes, that can only be achieved after turning on the afterburner.

After turning on the afterburner of the fighter, the fuel will be consumed at an alarming rate, and if it can fly for 3 hours normally, then turn on the afterburner, and it will run out of fuel in 15 minutes.

Therefore, with the exception of a very small number of aircraft, most of the aircraft are short-lived supersonic flights, and if they can fly at supersonic speeds without turning on afterburner, they absolutely need perverted engines.

This is the case with the F-22 of later generations, it relies on the powerful F119 engine, and the normal intermediate thrust without afterburner is 118 kN, you know, the current engine similar to F100, afterburner thrust, is only 129 kN!

And when the F119 turns on the afterburner, the thrust is as high as 178 kN!

It is with the powerful engine that the F22 realizes the dream of supersonic cruise, and in the confrontation with the F22 fighter, once the F22 enters the supersonic cruise, it means that it will not play with you, you have to chase, you can't catch up at all, and soon the fuel will run out.

Take the current Tomcat fighter as an analogy, the current TF30 engine, the afterburner thrust is about 90 kN, and the F100 engine, the middle thrust is 65 kN, but, after continuous improvement, the F100 follow-up engine, there is a model with an intermediate thrust of 79 kN.

If you find such an engine and reequip the Tomcat fighter, then it is foreseeable that the Tomcat fighter can easily achieve supersonic cruise with a bomb of about Mach 1.5!

With this ability, it will definitely blow up any fighter!

And if the perverted F119 engine is installed on the Tomcat fighter, the Tomcat fighter can easily achieve supersonic cruise above Mach 2! It is enough to simply remove the afterburner directly.

Obsolete variable swept wings? It can only be said that the performance is too powerful to be used.

Look at the big bug again, when it is full of bullets, give him an F119, it will not be able to fly at supersonic speed.

Nathan said to everyone: "The advantage of the variable sweep wing is that it is so powerful, we can easily achieve supersonic cruise at any time, just look at those guys in the Air Force, envy or not!" ”

Nathan's words made the people in front of him light up, that's right, just this one advantage, that is, nothing else can be replaced, and the current problem is that the engine is not powerful.

In later generations, when the Tomcat developed to the F-14D, it was replaced with the F110 engine, which attaches importance to reliability, so the intermediate thrust is not strong, if it is replaced with a strong engine, supersonic cruise has long been realized, which is one of the standards of the fourth generation aircraft!

"I can always go to Congress and start a debate with them if I need to." "Let them know how ridiculous they are," Nathan said. Of course, we also have to improve our fighters. ”

PS: There is a lot of data, I don't know if the reader will be annoyed by it, when East China Xiong wrote these, it was actually quite a pity, if these are realized, it can be said that the stealth of the ultimate improvement of the Tomcat, in fact, is more awesome than the F-22, that's right, East China Xiong is a Tomcat fan, I hope in this book, you can write to the end of the stealth cat vs. Su-27.