Chapter 1435 Materials Are the Fundamentals

Having nuclear power does not mean that there is no need for an engine, it is just that the turbojet engine at the back will be redesigned, and the combustion of fuel is no longer powered by fuel, but by a nuclear reactor.

This reactor is naturally still a fission reactor.

"Does it have any advantages? How long can it fly if it refuels once?" Jiang Yanhai asked a key question.

Although everyone knows that nuclear power uses a very small amount of fuel, this nuclear power itself is a very small reactor, which means that its key core cannot hold too much nuclear fuel even if it is allowed to discharge.

"Its flight range is about 100,000 kilometers with one refueling." Professor Hu gave a specific figure.

Jiang Yanhai took a deep breath, 100,000 kilometers, this number is already extremely scary, and the equator around the earth is only more than 40,000 kilometers. That means more than two circles around the Earth.

This is no longer a matter of combat radius, which means that it can even fly without changing fuel for a long time, as long as the life of its tail turbojet engine can last, it can even stay in the sky.

"Can it go into space?" Jiang Yanhai re-estimated its data in his heart. Whether it can go into space mainly depends on how high its utilization rate of air is. If the utilization rate is high enough, although the plane leaves the ground at a certain height The air will become very thin, but at that time, as long as the power is strong enough, flying out should not be a big problem.

"It's difficult at present, but this is our goal. However, according to our current data, although it cannot fly into space, its maximum flight altitude can reach an ultra-high altitude of about 60,000 meters."

60,000 meters, that is, 60 kilometers from the ground, this altitude has exceeded the flying altitude of all existing fighter jets, and even some intercontinental missiles are capable of flying above this altitude, ordinary interceptor missiles, anti-aircraft missiles, and air-to-air missiles None have this ability.

Jiang Yanhai estimated it in his heart. In fact, if all the parameters are corrected according to the data analysis system, it can barely fly into space, but after flying into space, its internal fuel is basically exhausted. Landing is bound to be a problem.

But this is really a huge improvement over previous aircraft.

"What about the speed of the plane?"

"If new composite materials are used, it can reach a cruising speed of Mach 4.5 and a maximum speed of Mach 6, but it can only be achieved at a super high altitude." Professor Hu gave a number.

"Have you found the material to solve the heat barrier?" Jiang Yanhai was really surprised this time. Human fighter jets have never been able to break through Mach 3 or above. Before the Phantom came out, it was because the heat barrier was not so easy to solve.

When the Blackbird reconnaissance aircraft broke through Mach 3, the overall length of the aircraft could even be increased by more than 20 centimeters. One can imagine how terrifying the thermal expansion and contraction of materials are.

The Phantom solves this problem because the expensive ultra-high temperature-resistant materials on its fuselage have reached a certain level of resistance to high temperatures, so that after reaching such a high cruising speed, the thermal expansion of the fuselage is controlled within a certain range. Inside, the parts will not produce too much deformation.

But after exceeding Mach 3, it can be said that if the speed increases by Mach 1, the temperature increase will be more dramatic. At least the original material of the Phantom cannot withstand the cruising speed of Mach 4.5 and the limit speed of Mach 6.

"I found it. When it comes to this, I have to say, Xiao Jiang, you are this." Professor Hu directly gave Jiang Yanhai a thumbs up.

Several other professors also looked at Jiang Yanhai with admiration, "In fact, we discovered this material before. It is a composite material that combines new materials from Daqin and Red Star. We found that it has extremely strong durability. At high temperature, the coefficient of thermal expansion is just like some ceramic materials, which is infinitely close to zero."

"Of course, these two points are not enough. It also needs to have other characteristics that can be used as a fighter material."

"However, we have not found the most suitable formula, because there are too many new materials, new materials are discovered almost every day, and the data recorded by the Institute of Materials, the newly added data in the last month has exceeded them Increased data from the previous year."

"If it wasn't for the Pangu system, I don't know how long it would take us to find it."

"Because of the existence of the Pangu system, we have solved the problem of this new material in a very short period of time, so we have these demonstrative next-generation phantom upgrade plans." Professor Hu said.

Jiang Yanhai shook his head with a smile and said: "I just provided the tools, but in fact it is you who actually complete it. Even without us, you will still complete it in a very short time."

"However, before I came here, I heard from Professor Liu that you have other upgrade plans?" Jiang Yanhai was a little curious.

There are two upgrade plans for the next-generation Phantom, which can be said to be a choice between the two.

But before coming here, Jiang Yanhai didn't know about the two plans.

"Yes, the second plan is still conventional power." Professor Hu nodded, "But thanks to the application of new materials, we have made a new upgrade to the Phantom engine."

"The main reason is to improve its fuel efficiency. With the Phantom's current fuel load unchanged, its voyage has increased by more than 50%, and the turbojet is more efficient, and the output power in a short period of time is higher. In addition We also super-pressurized its compression chamber." Professor Hu said quickly.

"Now it's smaller, with a smaller orifice, but with more power."

Jiang Yanhai immediately gave Professor Hu a thumbs up. Generally speaking, when the speed of gas passing through the tail nozzle of a fighter jet engine is constant, the larger the diameter of the nozzle, the greater the thrust will naturally be.

Of course, the nozzle diameter can be adjusted, and different flight attitudes use different nozzle diameters, but now they have actually made a smaller nozzle diameter in this regard.

In fact, to put it bluntly, the reason why we can achieve this is that our materials were not qualified before, but now our materials have passed the standard, and even the material performance has great redundancy, so the ultimate performance of the material can be squeezed.

Compress the air harder, even if the diameter of the nozzle is reduced, but the jet speed is faster than before! Thrust naturally increases as well!

And the basis of all this is the material... Nothing can be done without a strong enough material.