Set sail1992

Chapter 357 I Can Build Engines

Xia Muqing's surprise was indeed justified, the one-child policy never started in the early 80s, and children born in the 70s, like myself and Zhang Qihang, who didn't have a few brothers or sisters?
The reason why I don't have brothers and sisters is because my family's situation is special, and my father sacrificed early, otherwise I should have several brothers and sisters no matter what.

The situation of my own family is special, but Zhang Qihang's parents are both present. According to common sense, he should have a younger brother or younger sister. The remote control helicopter is suitable for teenage children, but who would have thought of it? However, Zhang Qihang turned out to be the only seedling at home.

"This..." Only then did Xia Muqing know that Zhang Qihang is the only child, and he couldn't help but said awkwardly: "Why don't I go and retire..."

It is indeed a bit inappropriate for Zhang Qihang, a deputy department-level cadre, to play with remote control aircraft...

Anyway, he is also a person who has lived for more than 40 years. Zhang Qihang is not really stupid. How could he not understand what a little girl means?To be honest, Zhang Qihang also had a good impression of Xia Muqing, so he thought it would be okay to try to get in touch with him.Facing Xia Muqing's kindness, Zhang Qihang naturally would not refuse, and immediately said with a smile: "Don't mind, I suddenly feel that this thing seems quite interesting."

As for what he just said "it's not suitable for me to play with this thing", he has long since forgotten it.

"Ah? This..."

Hearing the meaning in Zhang Qihang's words, it seemed that he wanted to play with this remote control plane. Xia Muqing was a little surprised, but also a little bit delighted: No wonder mother said that no matter how old a man is, he is still a child...

Zhang Qihang took the huge box containing the remote control helicopter from Xia Muqing's hand, looked it over and said with emotion: "Is this remote control helicopter imported from Japan? It should be very expensive, right?"

It was indeed not cheap, but how could Xia Muqing have the nerve to say the actual price of this thing?He said vaguely: "It's not that expensive. The ones that are really expensive are those that use fuel engines. They should be called model airplanes. This one actually uses rechargeable batteries, so it can only fly for a short while..."

Speaking of this, Xia Muqing said with emotion: "I heard people say that Dongying has already used remote-controlled planes in agriculture, but our country can't even make a remote-controlled toy..."

Before Xia Muqing finished speaking, Zhang Qihang was stunned. Before she finished speaking, Zhang Qihang quickly asked: "What did you say? Dongpu has already used remote-controlled aircraft in agriculture?"

What can an aircraft used in agriculture be used for?
In terms of the technical conditions of this era, unless it is spraying pesticides on the farmland, damn... Isn't this an unmanned plant protection machine? !

But Zhang Qihang couldn't believe it. In this era, Japan already has unmanned plant protection machines?
In Zhang Qihang's impression, domestic unmanned plant protection drones should have been developed after the rise of DJI. Zhang Qihang doesn't know much about the development of agricultural technology, but roughly it should be around 2015. But now, This girl Xia Muqing actually told herself that Dongpu already had an unmanned plant protection machine?

Exaggerated? !
"Well, I also heard from my friend." Xia Muqing nodded and said, "She said that as early as several years ago, the Yamaha company in Dongying used motorcycle engines as power to modify an unmanned helicopter, and then put the medicine barrel Installed on this unmanned helicopter, use the remote control to control the aircraft to spray pesticides on the farmland, and it can spray dozens of acres of farmland in an hour."

Zhang Qihang was extremely shocked: How else can he operate?

But in the next second, he realized, why can't he do this?

Isn't this thing essentially a model helicopter with a relatively large payload!

Many people think that the development of domestic model airplanes is very backward. In fact, this is not the case. In the 90s, there was a boom in model airplanes in China, and even this craze is still there. This boom in model airplanes is not just about using rubber bands as power. There are also entry-level model airplanes with two-stroke engines and fuel airplanes with two-stroke engines. There are even several miniature model airplane engine manufacturing factories in China, which produce small model airplane engines that are less than the size of a palm.

The power of this kind of fuel model aircraft engine is limited, but the speed is extremely high. Most of them adopt a two-stroke design, and the speed can reach more than 1 rpm. Usually, methanol is used as fuel. Zhang Qihang used to be crazy about this type of model aircraft. Drooling, boys, who doesn’t like to play with awesome toys, even if they get older in the future, fishing and beading are actually toys in essence, but Zhang Qihang at that time couldn’t play with model airplanes, but now? ...

Why didn't I think of getting the unmanned plant protection machine out now?
I can build engines!
Huateng’s current largest displacement is the 150CC HT150. Although the weight of this engine is a bit large, reaching nearly 30 kilograms, the aircraft model engine does not need a gearbox. The two sets of transmission gears and the entire clutch system are removed. The lightweight transformation can at least reduce the weight of the engine by 10 kg. In this way, an engine with a maximum power of 9.3KW will be available, and the weight including lubricating oil will not exceed 20 kg.

Although it is still much heavier than the special engines used on powered parachutes and powered delta wings, it doesn't matter. My buddy is not going to take people to the sky, so the weight should be bigger. In this way, the foundation of unmanned helicopters As for the technology of helicopters, there is Harbin Institute of Technology and Hafei next to Harbin Institute of Technology. It is just a remote-controlled large helicopter model with a maximum take-off weight of tens of kilograms. That would be a big joke...

Seeing Zhang Qihang suddenly froze, Xia Muqing couldn't help but asked, "Qihang, what's wrong with you?"

"Oh, it's okay." Zhang Qihang waved his hand: "I just thought of a new business for our company."

"That's it," Xia Muqing didn't think too much after hearing what Zhang Qihang said, she nodded and said, "Slow down on the road, remember to call me when you get to Langya."

"Okay," Zhang Qihang nodded repeatedly, and then said, "By the way, I have something to trouble you for."

Xia Muqing immediately said, "Say it."

"That's it, can you help me find some information on the development of unmanned plant protection machines in Japan?"

Xia Muqing was taken aback: "Unmanned plant protection machine?"

"But it's the kind of drone you just mentioned in Dongying that sprays pesticides on farmland," Zhang Qihang said, "I suddenly feel that our company seems to be able to make this thing."

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PS: Brothers, this chapter is a supplement to yesterday's update.

(End of this chapter)