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

If some of the structure of the engine can be deformed so that it can work in different engine forms such as turbofan, turbojet, ramjet, etc., respectively, then it is called a variable cycle engine. Pen~fun~Ge www.biquge.info This kind of engine is a "turbofan engine" with a low bypass ratio or a "turbojet engine" with an external duct under normal circumstances. This is the only way to meet the thrust requirements of the aircraft during take-off, and as the speed increases, the front fan of the turbofan stops and adjusts to the lowest drag and closes the outer duct, turning it into a turbojet engine. After the speed is high, the drag of the turbofan engine is great, and the advantage of turbojet is obvious. When the speed increases, the intake of the turbojet engine will also shut down and start the outer duct, and ignite 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", adapting to a wide range of conditions from low-speed flight to hypersonic speeds.

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

And the USSR wanted a hypersonic vehicle, a variable-cycle ramjet engine, and that was an aspect that had to be broken through! At the same time, what was even more perverted in the USSR was the use of liquid hydrogen as fuel, which had better performance.

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

"What we just had a problem with was this variable-cycle ramjet engine, which could not be freely converted on our high-altitude test platform, and there were repeated mistakes." Sergey said.

In addition to undertaking the whole experimental machine, the test flight institute also undertakes the test flight task of the engine, which has been continuously malfunctioning on the high-altitude flight test platform.

Andrei nodded, the development of such an advanced engine, of course, could not be smooth sailing, even in the Soviet Union, which had strong technical strength.

"The skies of our Soviet Union are inseparable from our hard-working technicians, who act in accordance with the laws of science, and will definitely be able to find defects and perfect our engines." Andrei encouraged.

"Yes, I believe that our new reconnaissance aircraft will be successfully trial-produced, and at the same time, we have a plan to convert it into a bomber and update it." Sergey said: "As long as the trial production of this variable-cycle engine is successful, in the next stage, we will try to produce a new aerospace aircraft on the basis of this aircraft, which will achieve the goal of use in outer space by carrying liquid oxygen." ”

Aerospace engines... Well, this ideal is very beautiful, Andrei is not in charge of the Ministry of Armament after all, so there is no reason for Andrei to block these planned directions.

Suddenly, Andrei patted himself on the head: "By the way, we came to see the latest fighter of the Sukhoi Design Bureau." ”

As soon as I came, I was attracted by the supersonic airliner, and I was fooled here, and so far, I haven't seen the target of this time, the new generation fighter that has begun to fly test!

"This, of course, please come with me." Sergey said: "Now, just as the Americans' reconnaissance satellite has flown away from us, we can make the next test flight." ”

…………

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

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

And in Africa, most of them are black people. It is poor, backward, and at the same time war-torn at the same time.

However, in such a world, there is a unique country, this country is the only developed country in the third world in the whole of Africa!

This country is South Africa!

South Africa is located at the southernmost tip of the African continent, known as the Rainbow Country, with beautiful scenery, and at the same time, the country's economy is quite developed, relying on the production of gold and diamonds, South Africa is a rich country, and at the same time, South Africa's scientific research capabilities are also extremely developed.

In terms of weapons alone, South Africa has its own horn tank, Cheetah and Carver fighters, and even South Africa has a secret nuclear weapons development program!

For South Africa, all this can only be attributed to one thing, because South Africa is white-run.

In later generations, when the white regime collapsed, South Africa's economy declined rapidly, when the blacks gained the right to rule the whole country and consumed all the wealth, they had no development, and South Africa also degenerated from an advanced and civilized modern country to a poor and backward country, with deteriorating law and order, and the inertia of the blacks was unobstructed.

Now, South Africa's national strength is strong because of the rule of white people, but the Western world, which has always advocated democracy and freedom, has not shown a smile on the white government of South Africa, they think that the South African system is simply dehumanizing, and they are even more angry at the apartheid of South Africa. At the same time, the Western world has also imposed an embargo on South Africa, demanding that South Africa compromise.

The whites of South Africa are not the whites of the Western world! On the contrary, there are deep contradictions between them!

The whites of South Africa, the Boers who belonged to the Dutch origin of South Africa, and during the colonial period, the Boers of South Africa were also subservient to British rule, and the contradictions between the two sides were deep. The biggest contradiction is that during the Boer War from 1900 to 1902, the British adopted a very cruel scorched earth policy and concentration camp detention against the Boers, and more than 20,000 Boer women and children died in the concentration camps due to hunger 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, after which a number of laws relating to racial discrimination and apartheid in the Transvaal Republic and the Orange Free State were introduced throughout South Africa.

The basis of this law is to determine a person's identity by the color of his or her skin. South Africans are divided into several basic groups: whites, coloured people (descendants of the intermarriage between Dutch whites and indigenous Nama people in the seventeenth century), Indians, Malays, and blacks.

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

This system is the apartheid system in South Africa, and it is this system that gives the entire Western world an excuse to crusade against South Africa, and at the same time, it is also this system that makes South Africa's economy develop rapidly!

Black people are inert, and the boss who does projects in Africa knows this. For example, when some bosses receive projects to help African countries invest in infrastructure, they have already negotiated wages, but blacks still go on strike from time to time to demand a wage increase, otherwise they will not work.

Later, the foremen of the contractors learned to be obedient and brought the workers directly from the country, but as a result, the blacks stopped doing it again! No, leave us jobs and let us work!

Now, the South African government has built South Africa into the only developed country in Africa, relying on the black labor under control, the managerial skills of the whites, and the endless mineral deposits of gold, diamonds, platinum, uranium, manganese, and coal, which accounts for 90 percent of Africa's reserves.

South Africa is self-sufficient in food and exports of surplus food, mines three-quarters of the world's gold, is able to make everything from refrigerators to automobiles, and is economically self-sufficient enough to withstand the world's sanctions! This makes the European countries that are now in recession envious, jealous and hateful.

Although the white South African regime adopted a policy of apartheid against blacks, it is fair to say that the general living conditions of black South Africans are the best in sub-Saharan Africa, the most educated, and have access to the best health care. They are asking for more power! They're going to rule the country!

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

Democracy, freedom!

Unfortunately, the South African government will not destroy them. Successive leaders of the South African National Party, such as Daniel Malan, Johannes Stretton, Hendrick Viwold, and others, believed that the abolition of apartheid would eventually lead to the destruction of white South Africans, so, on this crucial issue, South Africa will definitely not back down!

Now, South Africa's ruler is President Mares Verrien, who is also a tough leader, and he and his aides, Prime Minister Peter William Botha, are watching the U.S. special envoy, Secretary of State George, come in. (To be continued.) )