The Grandmother in the Siheyuan

Chapter 407 Backdoor
The best heavy attack helicopter in the world right now is the Apache, and Liu Hua can certainly exchange for an Apache engine. However, since there is no dark web or WikiLeaks yet, the source is a bit unclear.

So Liu Hua chose our own WZ-9 turboshaft engine, which is used on the Z-10 attack helicopter, and Liu Hua also used the system's optimization function.

It's still the same turboshaft engine, but with more power, a higher safety factor, and a lower failure rate. Most importantly, Liu Hua discovered that even the machining difficulty has been reduced.

Liu Hua was drawing in his own home. Anyway, there were security personnel around his house, so his safety was guaranteed.

Ma Shan was restless in his office, his mind preoccupied with the engine problem of the heavy helicopter, wondering what kind of answer Liu Hua would give him.

However, since Liu Hua promised to cover his expenses for three months, he could only patiently refrain from asking any questions, lest Liu Hua find him annoying.

Liu Hua finished the blueprints in just a month and a half. His drafting skills are undeniable. Plus, he has all the data in his head. This is much faster than having someone else redraw the blueprints from scratch.

After finishing the blueprints, Liu Hua still had time to visit the factory. Everything at Taiyi Heavy Industry was running normally, and the automobile engine business had also taken off, already able to supply a portion of the market.

Taiyi New Energy is now Liu Hua's top priority. Solar panels are currently in short supply, and the State Grid has sent a liaison officer to the factory. Two large trucks are waiting at the factory every day.

Once the solar panels are produced, they are immediately loaded onto trucks and transported away, eliminating the need for them to stay overnight in the warehouse and saving Liu Hua a significant amount of storage costs.

Liu Hua reviewed the research progress of sodium and lithium batteries. The children were working very hard and had developed the batteries, but the energy density was still relatively low and did not meet commercial standards.

Liu Hua spent a few days giving them lectures and encouraging them to think outside the box, and the students immediately came up with several good ideas.

When Ma Shan learned that Liu Hua still had time to go to the factory, he became extremely anxious.

He called Liu Hua's mobile phone and said, "Uncle Liu, don't you know what's important? Your most important job right now is to draw up the engine blueprints for me."

"Even someone who's about to hang themselves needs to catch their breath, can't you just stop urging me?" Liu Hua joked. "I'm drawing detailed blueprints, I'm drawing all day long, my brain's like mush, can't you let me refresh it?"

"Aren't I anxious?"

Ma Shan didn't seem to understand Liu Hua's joking tone, which meant he was genuinely anxious. Liu Hua also understood that the burden on his shoulders was far too heavy.

With guidance, researchers in the new energy sector quickly developed a lithium battery that could be commercially used in PHS (Personal Handyphone System). Actual tests showed that it had a significantly longer battery life than nickel-metal hydride batteries.

The postal service's PHS (Personal Handyphone System) company immediately purchased a large quantity of these batteries. Although nickel-metal hydride batteries could be used, they received feedback from Hong Kong that people there made more frequent calls, so the battery life was insufficient.

Of course, some people will buy a spare battery to use in rotation, since the battery cover hasn't been welded shut yet.

But the postal service also has its own agenda. If I replace the batteries with more advanced ones, the factory price will be higher. Besides, people in Hong Kong and Macau are relatively wealthy, so it's understandable that they want to use better products.

Nokia and Motorola quickly learned that Liu Hua was producing commercially viable lithium batteries and immediately placed orders with him.

These capitalists are well aware that lithium batteries can be used as a selling point for their communication tools. By simply increasing the cost, they can raise the retail price by more than 100%.

The most important lithium batteries are not only used in communication tools, but also in many electronic instruments. The lithium battery market is very broad, and even many electronics companies in the United States come here to order lithium batteries.

There was no other way; the patent was in Liu Hua's hands, and manufacturing it himself would be more expensive, making it far more cost-effective to order from Liu Hua. After signing a large order with Nokia, Liu Hua very satisfiedly delivered the blueprints to Ma Shan.

"You're riding high on your success!" Ma Shan teased. "I heard you just signed a big order this morning?"

"Yes, isn't this double happiness?"

There were so many drawings, several large boxes in total. Although there is now drafting software, it is not available in China. Liu Hua was worried that such software might have backdoors, so the drawings were drawn by hand instead of using a computer.

But Ma Shan didn't understand: "Isn't it said that computer-generated graphics are available now? Why are you still drawing by hand?"

“That software is from Midea, a big company.” Liu Hua shook his head: “I’m afraid there might be a backdoor in that software, and I feel there definitely is. You see, when I use that software to make graphics, the backdoor sends out my data.”

"Is that so?" Ma Shan quickly asked, "Can computer software be operated like that?"

Liu Hua nodded, while Ma Shan frowned: "It seems I need to report this and investigate thoroughly. We absolutely cannot let our secrets leak out."

"It would be best if we could develop our own map-making software."

Liu Hua thought for a moment, then slammed his hand on the table: "I remember now, I have a grand-apprentice who works at Kingsoft Antivirus. This kid and their chief engineer are both excellent programmers. I'll ask them if it's possible."

Ma Shan nodded: "If they can manage it, we can give them some investment."

Liu Hua picked up the phone on Ma Shan's table—not the red one—and turned on his own mobile phone, finding Lei Jun's number.

"Master, is there something you need?"

"Xiao Lei, are you doing well at Kingsoft? You can come to our company, or you can start your own company and I'll invest in you."

After a few minutes of silence on the other end of the phone, Lei Jun said very seriously, "I don't want to think about anything else for now. I want to train myself first. I feel that my shoulders are not yet able to bear the weight of a company."

"Alright," Liu Hua said with a smile, "Now I have a task for your company, I wonder if you can handle it."

“Master, you tell me. If I can’t do it, our company has other great people.”

"Would you like to ask Bo Jun?"

“That’s right.” Lei Jun said flatteringly, “Mr. Qiu’s level is far beyond my reach. I have learned a lot from him.”

“The WPS he developed is indeed quite good,” Liu Hua said confidently. “You should ask him if he can develop our own CAD software. Due to national defense and security requirements, we cannot use foreign CAD software.”

"Professor, I'll give you an answer tomorrow."

(End of this chapter)