During the first half of the twentieth century, the development of any aircraft was often very long.

The main reason is that all countries are crossing the river in terms of the aerodynamic layout of the aircraft, and they do not know what kind of aerodynamic layout of the aircraft can fit perfectly with the aircraft's own aero engine. Often, the developed aircraft have to be modified many times because the engine power is too large or too small, which is a waste of time and financial resources.

Especially during the war, if a new aircraft cannot achieve the perfect combination of aerodynamic layout and engine itself, it is easy to have weaknesses, increase the opportunity for the enemy to attack, and even affect the entire war.

To be able to solve or minimize such unwanted errors requires a critical piece of equipment, which is called a wind tunnel.

Wind tunnels were not a new thing in this era, and slightly larger aircraft design companies had built them.

However, most of the aircraft designers of this era were affected by the commercial operation of airlines, because the cost of wind tunnels was too high, the operating costs were higher, and the efficiency was very low, while the aircraft market was saturated, and sales were too low to build small-scale simple wind tunnels. The size of the wind tunnel that can be provided to aircraft designers is too small to rely on models for wind tunnel testing, and its shiyan data is very inaccurate because it is manually operated.

In this case, the average pilot designer relies on theoretical aerodynamics to design an aircraft, which is almost not tested in the wind tunnel or only a few times before being marketed to the customer by the company owner, and often has to go through many times of continuous modification to barely meet the needs of the customer. In order to avoid detours as much as possible, many aircraft companies even only make slight changes to the previous effective aircraft, and rely more on improving the engine power to meet the upgrade needs of customers.

The unchanged aerodynamic layout has seriously affected the continuous improvement of the performance of the aero engine, making the aero engine unable to play its true performance, wasting resources, and also affecting the progress of the aircraft industry.

It was not until the outbreak of World War II that the aerodynamic layout of the aircraft had to be improved due to the needs of the war, and as a result, many aircraft that should have been very good were tested dozens of times because of the lack of experimental data, and many of them were not designed until the end of World War II, which delayed the precious time of the war and wasted manpower and financial resources.

The most typical is that the German aero engine reached the standard of the jet age in 1940, but because the aerodynamic layout of the German aircraft is still in the era of low-speed propeller aircraft, the newly developed jet aircraft does not have the corresponding wind tunnel test data, and has to carry out hundreds of prototype test flights, often the prototype and pilot aircraft are destroyed, and the result has to start over, which greatly delays the precious time for the Luftwaffe to equip the new aircraft, and also leads to the Luftwaffe from before World War II to the end of World War II. Its main fighters have never been replaced, but some improvements have been made on a small scale, which is also one of the fundamental reasons why a large number of advanced German fighters cannot be applied to the new fighters in time to bring transfer to Germany.

When the Luftwaffe realized this serious problem and immediately set about building Shijie's largest large-scale wind tunnel laboratory, it was defeated and surrendered before it could be completed. In the end, the Germans' leading shijie advanced jishu were ceded to the United States and the Soviet Union.

As a descendant, Zhang Meng knew the decisive influence of aviation on future wars, and the huge role of wind tunnels in aviation development was also more clear, so he would not take a detour. At the same time, his aircraft carrier battle group has already been planned, and in the next 16 months, it will be necessary to have aircraft carriers and carrier-based aircraft that meet the requirements in order to be able to form combat effectiveness. He didn't want his hard-trained pilots to die for unnecessary test flights, and he couldn't afford to lose, especially since time was running out for no one.

In order to shorten the development time of the Raptor fighter as much as possible, and for the development of the Tang Imperial Air Force in the future, Zhang Meng decided to equip the Raptor fighter with the corresponding wind tunnel laboratory.

Considering that there is no CNC computer system in this era, and the artificial calculation error is very large, in order to reduce the data error, the data from the real machine wind tunnel shiyan is more real and accurate than the model wind tunnel shiyan, but that also means that the huge cost of wind tunnel investment.

If it's a problem that can be solved with money, it's certainly not a problem.

At least that's what Zhang Meng thinks.

Either you don't build it, or if you want to build it, you can build Shijie's largest and most complete wind tunnel group, and Zhang Meng doesn't care how much it costs.

Of course, Zhang Meng's decision is no longer limited to simply providing full-scale wind tunnel test data for the Raptor fighter.

The role of the wind tunnel group is not only to provide accurate experimental data for the Raptor fighter, in the entire defense industry and civilian industry, the wind tunnel can not only meet the aerodynamic measurement data of the fighter, but also provide pressure, heat resistance, air resistance simulation real data for helicopters, civil aircraft, automobiles, trains, rockets, missiles, artillery shells, satellites, space shuttles, space capsules, etc., and can simulate ships, submarines, etc. From hundreds of storeys to the development of equipment related to people's livelihood, the compression and heat resistance of various materials play a pivotal role in the construction of a country's fluid mechanics industry.

Taking advantage of the economic crisis in the United States, when all kinds of cement, steel and other materials were cheap, Zhang Mengjihua directly put in place at one time to meet all the needs for wind tunnel laboratories in the next four or five decades.

Zhang Meng said that he would do it, and immediately found Martin, Tesla and others to discuss the feasibility of establishing a super wind tunnel group Shiyan base.

As soon as they heard that Zhang Meng was going to build a super wind tunnel group, Martin and other designers of Raptor Airlines suddenly burst into excited green light, and even Tesla, which has always been calm, was a little surprised, because according to Zhang Meng's proposal, a super wind tunnel group needs at least hundreds of millions of dollars, even if the US economic crisis brings raw materials with cabbage prices, it will have to be hundreds of millions of dollars.

Obviously, Tesla doesn't know how thick Zhang Meng's family background is.

Zhang Meng immediately reassured Tesla, money is definitely not a problem, the question is whether we have this jishu ability.

Martin said: "The core equipment in the construction of the Super Wind Tunnel is the large, high-quality air compressor! ”

Zhang Meng asked, "Where can I get it?" ”

Martin replied, "As far as I know, Quincy Air Compressors is a top expert in this area, and they have the ability to build the high-quality large air compressors that we need for the Super Wind Tunnel Complex!" ”

"No problem! I'll take care of it! ”

Zhang Meng gave Martin an affirmative look and motioned for him to continue.

"The wind tunnel group can not be built in a day or two, at present, we need the most urgent is the prototype produced by the Raptor fighter, to carry out the full-scale wind tunnel test, the need for 2.4 meters of supersonic wind tunnel test, conservative estimates only in the foundation construction will need to pour more than 8,000 tons of cement, into the ground reinforced concrete columns at least more than 700, the average cement column has to be more than 33 meters thick to maintain stability."

"What we have is reinforced concrete, all for you with special cement and Krupp steel, so let's go, go on!"

Martin thought that this would scare Zhang Meng, but this was the easiest problem for Zhang Meng.

Undoubtedly, Zhang Meng took advantage of the economic crisis in the United States to use all kinds of conspiracy, and it can even be said that he was despicable, shameless, dirty and other means, and Zhang Meng robbed a lot of the most basic raw materials such as special steel and special cement in the hands of the Americans, and it may be more appropriate to describe it in astronomical numbers.

Well, Martin smiled wryly, and should have underestimated his boss's abilities.

"Another challenge is that we need to set up a 1,000 kV ultra-high voltage and 200 amperes super circuit system to provide at least 20,000 kilowatts of instantaneous power and 120,000 kilowatts of core power."

Everyone was stunned, and there was no reaction except for the expressions of the two people.

One is Zhang Meng, because he knows that only one person can do it in this era. The other person is Tesla, because he played this super game more than two decades ago, when it caused a three-month power outage in New York, and he was the culprit.

"There's no problem with this, Academician Tesla will help solve it, isn't it?"

Zhang Meng looked at Tesla, and the latter asked very calmly: "You have to build at least two more 500,000 kilowatt thermal power stations for me, otherwise the people will spend the night in the dark, don't blame me for not reminding you!" ”

Well, Martin and the others then remembered that they still have Tesla by their side.

What was supposed to be a very difficult thing to do turned out to be very simple.

"Any other questions?"

"I can solve the rest of the problems myself! Now it's time to choose a location! ”

Zhang Meng said directly: "The wind cave group must be built along the mountain, we only have Vavau Island to build, fortunately there is a natural large karst cave group, I think the construction is also very easy!" ”

"That's right! This is indeed a unique condition! ”

Martin and the others nodded, in their opinion, the natural resources of the entire Tang Empire, that is, the natural cave group of the Vavau Islands, were still somewhat valuable.

Subsequently, the group studied some of the details. After that, Zhang Meng handed over the task to Martin and Tesla, and he called Zhang Zhong and Madoff over.

Obviously, Zhang Meng is going to pit the Yankees again.

On his blacklist, there is a new name - Quincy Air Compressor Factory.

For mobile phone users, please read it on m.biquge.info.