Chapter 3422

Of course, when Marco was busy preparing for the "stealing secrets" plan, Qin Luo was not idle.

After two days of painstaking research, a brand-new design drawing was put in front of Qin Luo.

The main structure is stipulated by qinluo, and it is still round!

But in the center of the parachute, a hole is added, and ear wing devices are added on both sides.

"Zhao Yu, what's the matter with the hole in the middle?" Qin Luo frowned slightly and looked at Zhao Yu with some doubts.

To be honest, in Qin Luo's impression, there is no parachute with holes.

Although Qin Luo is not very proficient in aerodynamics, he also has a basic understanding that once the parachute has holes, it will accelerate the flow of air and reduce the air resistance.

He really didn't understand what Zhao Yu was thinking.

You can't sleep for two days, and you can make such a thing?

There is a saying, Qin Luo thought that this two days of night, all boil up to the dog.

"Professor Qin, I call this hole an orifice. The size of the orifice is determined according to the needs. Generally, the larger the area of the umbrella, the larger the diameter of the orifice. His role is also very simple, is to let the umbrella fall, the air from the bottom to the top to form a path, so that the umbrella in the descent process to maintain stability Zhao Yu said with a smile.

The round umbrella is very unstable and the influence of hand air is great.

In order to solve this problem, Zhao Yu consulted countless materials and finally found a solution.

Make a small hole in the middle of the parachute!

Travel path, so as to improve the stability of the parachute!

Stable?

The corner of Qin Luo's mouth smoked, this moment, he some don't know what to say!

Yes, stability was first put forward by him in order to ensure the safety of landing and the life of astronauts as much as possible.

But he didn't talk about opening holes in the parachute!

Stability is important, but parachute drag is just as important.

For stability, give up resistance, this is a typical case of swallowing waste food!

"Hoo ~"

Qin Luo took a long breath and forced himself to look at Zhao Yu!

"Zhao Yu, I ask you, what is the most important function of Parachute?" Qin Luo gnawed his teeth.

"Slow down the landing speed!" Zhao Yu didn't even think about it, so he spoke immediately.

"Now a hole in the parachute can form a passageway and make the parachute more stable, but the effect of deceleration will be greatly reduced."

"Have you thought about that?" Qin Luo clenched his teeth and said.

However, just as soon as Qin Luo's voice dropped, Zhao Yu shook his head: "Professor Qin, in fact, the opening does not have much effect on the deceleration effect."

Qin Luo:???

No effect?

I don't read much. Don't lie to me.

Zhao Yu's words directly forced Qin Luo into being.

It just refreshes his understanding.

"Zhao Yu, talk about it carefully. What's going on here?" Qin Luo asked.

He would like to hear what explanation Zhao Yu would make.

It's the first time Qin Luo has heard of such theories as opening a parachute, which has no effect on landing speed.

Zhao Yu's face is directly proportional to the size of his smile

"As long as the parachute is large enough to make a hole, it has no effect on the speed."

Qin Luo:! @#￥%……”