Chapter 857： Variable cycle ramjet

? However, the key to this is, of course, this variable-cycle ramjet!

If some structure of the engine can be deformed so that it can work in different engine forms such as turbofan, turbojet, and ramjet, then it is called a variable cycle engine. This engine is normally a low bypass ratio "turbofan" or a "turbojet" with an external bypass. Only in this way can the thrust demand of the aircraft be met when the aircraft takes off, and as the speed increases, the front fan of the turbofan will stop and adjust to the lowest drag condition and close the outer duct, turning into a turbojet engine. After the speed is high, the resistance of the turbofan engine is very large, and the advantages of the turbojet are obvious. When the speed increases again, the intake air of the turbojet engine will also be closed and the outer duct will be activated, and ignited at the end of the outer duct, becoming a "ramjet engine".

In this way, a single engine can have the performance advantages of three engines: "turbojet", "turbofan" and "ramjet", suitable for various situations from low-speed flight to hypersonic speed.

So far, the only J58 engine that has been put into practical use is the J58 engine used by the Blackbird, which has outstanding performance advantages. However, such engines are very complex and expensive.

And the Soviet Union wants to have a supersonic aircraft, a variable cycle ramjet, that is an aspect that must be broken! At the same time, the more perverted thing in the Soviet Union is that it uses liquid hydrogen as fuel, and this engine has better performance.

Unfortunately, this kind of engine is not so easy to overcome technical difficulties.

"We just had a problem with this variable-cycle ramjet. On our high-altitude flight test platform, this engine could not be converted freely, and there were repeated mistakes." Sergey said.

In addition to the test flight test institute, it also undertakes the test flight task of the engine. On the high-altitude test flight platform, the engine malfunctions constantly.

Andrei nodded. Of course, the development of such an advanced engine cannot be smooth sailing, even in the Soviet Union with strong technical strength.

"The sky of our Soviet Union is inseparable from our hard-working technicians. Working in accordance with scientific laws, we will definitely be able to find defects and improve our engines." Andrei encouraged.

"Yes, I believe that our new reconnaissance aircraft can be successfully trial-produced. At the same time, we also have conversion into bombers and updated development plans." Sergey said: "As long as this variable-cycle engine is successfully trial-produced, the next stage will be On the basis of this kind of aircraft, we will trial-produce a new aerospace aircraft, which will achieve the goal of use in outer space by carrying liquid oxygen."

Aerospace engine... Well, this ideal is very beautiful. After all, Andre is not in charge of the equipment department, so there is no reason for Andre to block the direction of these plans.

Suddenly, Andre patted his head: "By the way, we are here to see the latest fighter jet from the Sukhoi Design Bureau."

As soon as I came, I was attracted by the supersonic passenger plane, and I was fooled to come here again. So far, I have not seen the target of this visit, the new generation of fighter planes that have already started test flights!

"This, of course, please come with me." Sergey said: "Now, the American reconnaissance satellite just flew away from us, and we can conduct the next test flight."

…………

Just when the northern hemisphere is icy and snowy, the southern hemisphere is in a warm summer.

The northern hemisphere has more land, while the southern hemisphere has a lot of sea water, mainly Africa and South America.

In Africa, the majority are black countries. It is poor, backward, and at the same time the war is constant.

However, in such a world, there is a unique country. This country is the only developed country in the third world in Africa!

This country is South Africa!

South Africa is located at the southernmost tip of the African continent. It is called the country of rainbows. developed.

In terms of weapons alone, South Africa has self-developed horn tanks, cheetahs and carver fighters, and even South Africa has a secret nuclear weapons development plan!

And for South Africa, all these achievements can only be attributed to one thing, because South Africa is ruled by white people.

In later generations, when the white regime disintegrated, South Africa's economy fell rapidly. When the black people gained the rule of the entire country and consumed all the wealth, they did not have any development, and South Africa also changed from an advanced civilization. The modern country has degenerated into a poor and backward country, the security is deteriorating, and the inertia of black people can be seen at a glance.

Now, South Africa's national strength is due to the rule of white people. However, the Western world, which has always admired democracy and freedom, has not shown a smile to the white government of South Africa. They believe that South Africa's system is simply inhumane and apartheid in South Africa. , even more angry. At the same time, the Western world also imposed an embargo on South Africa, requiring South Africa to compromise.

White people in South Africa are not white people in the Western world! On the contrary, there is still a deep contradiction between them!

The white people in South Africa belong to the Boers of Afrikaans descent. During the colonial period, the Boers in South Africa also succumbed to the British rule. The contradiction between the two sides is deep. The biggest contradiction is that during the Boer War in 2008, the British adopted a very cruel scorched earth policy and detention in concentration camps against the Boers. More than 20,000 Boer women and children died in concentration camps because of starvation and disease.

It was these experiences that deepened the nationalist consciousness of the Boers themselves. In 1910, the "South African Party" won the general election, and after that, some laws related to racial discrimination and apartheid in the Transvaal Republic and the Orange Free State were implemented throughout South Africa.

The basis of this law is to use the skin color to determine the identity of the person. South Africans are divided into several basic groups: whites, colored people (descendants of the intermarriage of white Dutch and indigenous Nama people in the seventeenth century), Indians, Malays, and blacks.

Among them, blacks, who make up the majority of the population, are subject to great restrictions on freedom. More than 300 discriminatory laws stipulate where black people can live, work, eat, travel, and who they can marry, stipulate that black people over the age of 16 must carry ID cards, and they cannot enter towns where white people live after dark, etc. Wait.

This system is the apartheid system in South Africa. It is this system that gives the entire Western world an excuse to attack South Africa. At the same time, it is this system that enables the rapid development of South Africa's economy!

Black people are lazy, and the bosses who work on projects in Africa are deeply aware of this. For example, when some bosses receive a project to help African countries invest in infrastructure, they have already negotiated wages, but black people still go on strike from time to time, demanding more wages, or they will not work.

Later, the contractors all learned to be good and brought workers directly from China. As a result, the black people stopped working! No, leave the job opportunities to us, let us get jobs!

And now, the South African government relies on regulated black labor, white management skills, and endless mines: gold, diamonds, platinum, uranium, manganese, and coal, which accounts for 90% of all African reserves, to convert South Africa into To be the only developed country in Africa.

South Africa is self-sufficient in food and has surplus grain for export Gold mining accounts for three-quarters of the world's gold, and it can manufacture everything from refrigerators to cars. It is economically self-sufficient enough to withstand the world's Sanctions! This makes European countries, now in recession, envious and jealous.

Although the white South African regime adopts a policy of apartheid against blacks, in all fairness, the overall living conditions of blacks in South Africa are the best in sub-Saharan Africa, with the highest level of education and access to the best health care, but how can these blacks Satisfy! They demand more power! They are going to rule this country!

Therefore, the vigorous movement of black South Africans is also in full swing. They only know that South Africa is now a developed country! This country should be theirs!

democracy freedom!

Unfortunately, the South African government will not destroy them. Successive South African National Party leaders, such as Daniel Maran, Johannes Stratton, Hendrik Verwald, and others, believed that desegregation would ultimately lead to the destruction of white South Africans, so, on this critical issue Come on, South Africa will never back down!

Now, the ruler of South Africa is President Mares Verien, who is also a tough leader. He and his assistant, Prime Minister Peter William Botha, are looking at the American envoy who is coming. Secretary of State George. (To be continued.)