As soon as Li Anran's words fell, the holographic projection screen that was still rolling various pictures and drawings suddenly became "clean", leaving only an airship with a streamlined appearance and a silver-white main color.

"The main data of the Yufeng I electromagnetic airship are as follows: the length of the boat is 100 meters, the maximum diameter is 25 meters, the volume of the airbag is 7,500 cubic meters, and the volume ratio of the auxiliary airbag is 25%. The pod is fourteen meters long, ten meters long and five meters wide inside the cabin, and four meters wide inside the cabin. ”

"The main pod (excluding the landing gear) is four meters high, and the cabin is four meters high. The engine pods are located on either side behind the main pod and are powered by two electromagnetic pulse engines. It can be controlled by only two drivers, with a maximum load of 20,000 kilograms. ”

"The maximum ceiling is 5,000 meters, the maximum speed is 150 kilometers per hour, the cruising speed is 100 kilometers per hour, the maximum endurance time is 15 hours, and the helium filled with the airbag is safer to use because it is an inert gas."

As the holographic projection screen surfaced the various data of the airship and related pictures and drawings, the central intelligent brain Kotana also used her sweet voice to explain the main data of the airship.

Although he doesn't have a science or engineering major, Li Anran understands that this spacecraft uses helium instead of hydrogen commonly used in modern space-time as a floating power source, because hydrogen is relatively too dangerous.

With the size of the airbag of this Windward I, it can easily turn into a powerful bomb in case of danger. At that time, not to mention that the people and goods on the airship will become victims, and even people and things within a certain range will be affected.

With helium, it's different. To some extent, it can be said that the helium airship is definitely the safest aircraft in the world, even if there is an accident, unless all the airbags leak instantly, it will only fall slowly, and will not play any free fall like an airplane.

Of course, compared to hydrogen or similar gases that can be used as floating gases, the only disadvantage of helium airships is that the quantity is too small, and it is much more difficult to get than hydrogen from large road goods. Fortunately, this is not a problem for Li Anran, who has black technology.

After all, look at the whole universe. This gas accounts for 23 percent of the total mass. In terms of reserves, it is only second only to hydrogen. But if it is placed on the earth, helium will be much rarer and belong to the rare gas.

In fact, anyone who has studied high school chemistry should know that hydrogen is a very easily available gas. There are at least dozens of ways to mass-produce in. And it's cheap. But helium is different. To some extent, it can be said that success is also Xiao He, and defeat is also Xiao He.

The reason why helium is safe is because it is an inert gas, but inert gases have a common characteristic. It is very difficult to produce compounds, and the content in the earth's atmosphere is very low, only about 5 parts per million, and the yield is quite pitiful.

Fortunately, with the technology of modern time and space, it can be completely refined from natural gas. The price is not too high, and the bottled helium of twenty-two liters is only sold for more than 150 yuan on the Internet, of course, it is still much more expensive than hydrogen.

With the intelligent brain Kotana at the request of Li Anran, after putting the information about the manufacture of helium on the holographic screen, Li Anran was depressed to find that if he wanted to purchase helium in large quantities, it was more cost-effective to buy it from the United States.

There is no way, who makes people's territory too good, the helium content in natural gas is 1.5 percent on average, many can reach 7 percent, and the highest can even reach 15 percent, which is enough to make other countries so jealous that they can't cry.

What made Li Anran speechless the most was that most of the helium reserves in his own country's gas fields were actually below 0.2 percent for the same natural gas, and the highest would not exceed 5 percent.

"Wait a minute, Cortana, even if helium can be procured directly from modern space-time, what about the electromagnetic pulse engine? Wouldn't that be a little too advanced? After understanding the problem of helium, Li Anran, who suddenly thought of a question, said.

"Compared with the technology of modern space-time humans, the electromagnetic pulse engine is not too advanced. This technology has actually been invented, but due to the size and power of the equipment, it cannot be popularized for the time being. ”

"And according to my penetration of the modern space-time network, with the Anthropocene world relying too much on the industrial chain formed by the old-fashioned energy system, even if there is no problem at the technical level and can be put into mass production, this technology will not be popularized."

"With the level of science and technology that the commander is now investing in Datang space-time, the electromagnetic pulse engine has not exceeded the limit of the corresponding category. Of course, the commander can also change the engine to a normal diesel or gasoline engine, but the effect will be much worse. ”

Faced with the answer of the Central Intelligence Brain Kotana, Li Anran had to admit that what the other party said was quite reasonable. Although this electromagnetic pulse technique is indeed very advanced, he does not plan to popularize it in the Datang time and space, but it is still no problem to use it himself.

Even if there is any high-level alien civilization in this time and space, and at the same time, he also discovers the electromagnetic pulse technique he uses, I believe that he will not go against the sky to see his true combat power, but can play a role in confusing.

It's just that after Li Anran inadvertently clicked on a picture and enlarged it, he couldn't help but be a little dumbfounded when he saw that there was still a certain piece of equipment on the left front, right front, left center, right center, left rear and right rear of this Yufeng I airship.

"I said Cortana, can you explain what these barrels are all about?" Pointing to the pair of suspected cannons that were shown after the enlarged picture, Li Anran, who was sure that he was not dazzled, asked with a black line on his face.

"Commander, this is an M2 small-caliber rapid-fire electromagnetic cannon, with a caliber of 12.7mm, which can fire 12.7×99mm small-caliber depleted uranium armor-piercing shells, which can reach eight times the speed of sound at the fastest, and the rate of fire varies from 1,500 to 3,000 rounds per minute."

"This small-caliber rapid-fire electromagnetic cannon is the standard configuration of the Yufeng series airships, which is specially designed to deal with various attacks in the air and on the ground that endanger the safety of the airship, and it is standard." Cortana said as she put the data on the holographic projection screen.

"Okay, do you want to tell me that this thing doesn't have more technology than it has?" Li Anran, who was too lazy to look any longer, sat back on the main control chair of the entire multi-functional exploration spacecraft, and then asked.

"Yes, Commander." Cortana replied kindly.

"I'll admit, this thing is useful, but are you sure that it only takes two people to take full control of this airship that is almost bigger than you?" Li Anran, who rubbed his eyebrows, asked helplessly.

"Yes, Commander, it only takes two people to control the operation of all systems, including flight systems, weapons systems. In addition, the cockpit is completely isolated from the cargo compartment, and outsiders cannot enter without authorization. Cortana explained.

"Okay, okay, since you recommended this, let's do this." Li Anran, who knew that the other party was much smarter than himself, shrugged his shoulders and said, "By the way, don't exceed the limit in terms of materials." ”

"Rest assured, Commander, the materials used in this Wind I airship are also not overrun. However, considering that Datang Time and Space needs for airships, it is impossible to find such a small number of airships as one or two, so it is recommended to establish a supporting production line over there. ”

"I know that this will be the case." Li Anran, who knew that he really had no choice in this matter, said resignedly: "I agree to this matter, postpone the original production sequence, and manufacture the equipment of the relevant production line as soon as possible." ”

"By the way, remember to equip me with enough construction machinery, don't expect that there will be enough skilled workers in Datang Time and Space for you to use. Also, since it is a supporting production line, helium manufacturing is also included, right? ”

"Yes, Commander." Cortana replied.

"In that case, add a batch of automatic turrets to my production sequence, I don't want my territory to be targeted by irrelevant Turks." Considering that he must have no effort and no manpower to manage this production line, Li Anran commanded again. (To be continued......)