Chapter 299： V-two missile

Weiner von Braun was born in Germany in 1912. His mother was an outstanding amateur astronomy enthusiast. Under the influence of her mother, Braun stepped into the field of spaceflight.

He graduated from Charlottenburg Institute of Technology in 1932 with a bachelor's degree in aeronautical engineering.

In 1934, the A-2 rocket was developed and successfully tested at the test field near Kummersdorf.

In 1936, he led the design of the A-4 rocket program, which was later named the V-2 missile.

Throughout the Second World War, he was a well-known German rocket expert and played a key role in the birth of the V-1 and V-2 rockets.

After World War II, the Soviet Union obtained German rocket data, and Braun and his research team surrendered to the United States. The two countries each started a new space program based on Germany.

Braun, on the other hand, joined the American citizenship and became the father of American spaceflight. Almost all space programs in the United States were led by Braun, such as the famous Apollo moon landing program, such as the American space shuttle. Credit to Braun. Now, Braun has entered the state earlier than in history.

In Europe, it is very difficult to find a suitable launch site, but in the vast Libyan desert, it is even easier to research rockets!

The sky was already bright. This was the second day Hitler came to Libya. It was near the base. He watched Braun's experiment with great interest.

Last night, Braun did not explain to Hitler too much. Anyway, Hitler did not know so much professional knowledge. It was Cyric, a general who was originally not in touch with aerospace. En was deeply inspired.

Now, Braun has completed all the development of the V-2 rocket!

To develop a missile, the most important thing is the engine! Braun’s missile engine was designed by him himself. This engine is almost one person tall, and the entire missile looks quite smooth in appearance, with a height of 14 meters.

Standing on the launch pad is the missile Braun will test this time. At this time, the boom on the side is busy, and someone is filling the rocket with fuel.

"Our rocket uses alcohol and liquid oxygen." Braun said: "In the base here, there is a workshop dedicated to manufacturing alcohol and liquid oxygen."

The base is very large and has been continuously developed over the years. Now, almost half of the bases are rocket workshops.

"Dr. Braun, I don't know if you have thought about it. The combination of alcohol and liquid oxygen is actually not very suitable for rockets." Cyric couldn't help but say.

Last night, Braun introduced that the rocket weighs 14 tons and contains 5 tons of liquid oxygen and 3.5 tons of alcohol. It can generate 260 kilonewtons of thrust, with a maximum range of 320 kilometers, a flight time of about 320 seconds, and a hit accuracy of 5000 meters.

This kind of rocket is already quite advanced. It can be said that a few years in advance, it has reached the level of the historical V-2 missile. However, Cyric has now raised a very sharp question, propellant Not suitable!

First of all, there is the problem of liquid oxygen, which should be stored at low temperature! Storage at minus 183 degrees is the biggest problem when using it.

Seeing now, it is filling liquid oxygen. You can see that a thick layer of frost has formed on the outside of the filling pipe. At the same time, the filling personnel are also very dangerous.

On the other hand, the cost of alcohol is very low, but the burning energy of this thing is low. Looking at later generations, almost no alcohol is used as fuel.

If liquid oxygen is used, then simply load liquid hydrogen and directly engage in a liquid hydrogen liquid oxygen engine. This is only used in the highest stage of the rocket, with the highest specific impulse and the most technical difficulty.

And the next level, the more commonly used is the liquid oxygen kerosene engine, unfortunately, the difficulty of this thing is not ordinary, only the old Maozi has overcome it, and that is how many years later.

So, just look for the more common ones.

What fuel?

Of course it is unsymmetrical dimethylhydrazine and dinitrogen tetroxide, or nitric acid!

Although unsymmetrical dimethylhydrazine is highly toxic and carcinogenic, it can be stored at room temperature after all. Together with dinitrogen tetroxide, it is a common fuel for later generations of rockets! Once the two touch, you don’t need to ignite, you can do it!

Therefore, when Braun asked for advice on what was more appropriate, Cyric of course directly stated this common plan.

"You don't need to store at low temperature. Just wear a gas mask when filling. I think my plan is more suitable. If you think it is feasible, you might as well try it." Cyric said.

In fact, Braun certainly feels that the liquid oxygen solution is not appropriate. For this kind of rocket, the preparation before each launch is not only dangerous, but also very complicated. If there is room temperature propellant, it should be much easier, but he has always I didn't think about it.

Unsymmetrical dimethylhydrazine, dinitrogen tetroxide? Well, it seems to be the focus of the next aspect.

"In addition to the engine, another focus of improvement is the inertial navigation system." Cyric continued: "Our domestic electronic technology is constantly improving, and our advanced electronic technology is used to transform our inertial navigation system. , So that this missile has higher accuracy."

Historically, Hitler attached great importance to the V-2 missile, which is simply a big killer tailor-made for the United Kingdom. In World War II, Germany launched thousands of V-2 missiles to the United Kingdom, of which only 7 percent More than a dozen of them fall within 30 kilometers of the target, and about 40% of these fall within a range of 10 kilometers.

What is this concept? Almost none can hit the target! Therefore, although Germany looks aggressive, in fact, this missile is not useful for birds. The main reason is the poor accuracy!

Unless it is equipped with a nuclear warhead, it can only serve as an intimidation. Of course, this effect is achieved in a certain sense. The UK has nothing to do with this kind of missile. They can't intercept it.

This led to the crazy development of missiles by various countries after World War II .

Improve accuracy! Let this kind of missile have real use value!

Braun agreed with Cyric's proposal, and Cyric was right!

"The raise is complete, you can launch!" Just then, an assistant said.

At this time, there are not so many programs, start the gyro, the target data is set before, now, you can start the ignition!

ignition!

Following Braun's order, the bottom of this black missile sent a fierce flame!

The turbine blows fuel and oxidant into the engine inside and ignites it. The high temperature of more than two thousand degrees spouts from behind!

In the hot flames, this missile took off from the ground launch pad! Hitler's eyes watched the rising of the missile, as if his empire was taking off!