When she heard He Wei mention the water drift, Jin Ling'er didn't react yet, what is the connection between the water drift and the plane. Pen & Fun & Pavilion www.biquge.info Jin Cheng already showed a clear look here, and exclaimed: "I see, when a stone moving at high speed hits the water surface, the buoyancy on the water surface will hold up the stone, so that the stone cannot sink." And as long as the speed of the stone is large enough, this buoyancy will always exist. ”

"Yes. Although the density of air is not as great as that of water, there is also buoyancy in the air. Of course, the buoyancy of air is much less than that of water. He Wei said with a smile. And thought silently in his heart, he is worthy of being the head of the Golden Eagle Mercenary Group, in the end, Jiang is still old and spicy.

Hearing this, Jin Cheng nodded and said, "Obviously, the speed required to make a stone float in the air is much greater than the speed at which it floats on the water. Who's going to provide that speed? You can't throw this big guy out like you throw a paper airplane, right?"

Since Jin Cheng was able to ask about speed, it means that he has completely mastered the key to flying an airplane. This made He Wei breathe a sigh of relief, after all, it was too difficult to fly the plane with a person who had no scientific foundation at all. But if it's just about speed, it's much easier!

"Senior Kim, please. Before He Wei explained the source of the plane's speed, he took Jin Cheng and Jin Ling'er to the forging room next door. Because a large guy is now being assembled in the assembly room, which occupies almost the entire assembly room, the current forging room is also responsible for the task of the assembly room as a last resort.

In one corner of the forge room, two furnaces had been forcibly dismantled, freeing up a large open space that was being used to place and assemble a very strange machine. At first glance, you will see that this machine bears some resemblance to a steam engine. But if you look closely, you will find that there are only some similarities between it and the steam engine, and there are huge differences in the main structure!

"Internal combustion engine!" He Wei pointed to the machine and said to Jin Cheng and Jin Ling'er, "Feed the essential oil into the cylinder of the internal combustion engine, make it burn and release heat, and at the same time generate a large amount of pressure, driving the piston of the internal combustion engine to move and generate power. This power is then used to drive the propellers at the nose of the aircraft and the wings to rotate. ”

"Then, when the propeller turns, it not only creates a lot of wind, but also creates a huge thrust that makes the aircraft move under the action of this thrust. ”

A long time ago, He Wei had the idea of making an internal combustion engine. However, at that time, he did not find a suitable liquid fuel, so he had to settle for the next best thing and build a steam engine.

And now, He Wei not only knows that there are liquid fuels like essential oils in this world, but also with Xiao Jiu's help, it is naturally not difficult to make an internal combustion engine.

The internal combustion engine in front of him was designed by Xiao Jiu himself, a high-power internal combustion engine. As long as the group of blacksmiths in the armory room of the Golden Eagle Mercenary Regiment can build this internal combustion engine in strict accordance with the design drawings provided by Xiao Jiu, then there is absolutely no problem in using it as the engine of the aircraft!

Of course, this is also because the design drawings of the aircraft that Xiao Jiu provided to He Wei this time are also very old aircraft design drawings. According to Xiao Jiu himself, this design of installing propellers on the head and wings of the fuselage to provide flight power for the aircraft is the earliest aircraft design used by human beings.

This kind of aircraft can be said to be the ancestor of all kinds of supersonic flights, disonic, triplesonic, sub-light and other flying equipment in the current civilization!

Of course, when Xiao Jiu designed this "ancestor-level" aircraft, he also made certain improvements to the original design of this aircraft, otherwise, with the flight speed of that kind of antique aircraft, let alone traveling thousands of miles a day, it would be good to be able to fly a thousand miles without problems!

"Use this machine to make the wind, and then lift a plane that big to fly...... Is this possible?" Although she had fully understood the principle of airplane flight, Jin Ling'er still felt that what He Wei had just said was too much to take for granted. After all, that's more than 46,000 catties!

However, as soon as Jin Ling'er questioned whether the plane in the assembly room could fly, someone said firmly: "It can fly! Ling'er can put a hundred hearts! The old man dares to assure you that this thing will definitely fly!"

Jin Ling'er thought that He Wei was talking, but she found that it was obviously not He Wei's voice, and she looked up slightly and saw clearly that He Wei didn't speak at all.

Jin Ling'er turned around suddenly, only to find that the radiant old Liu Tou was standing not far behind her, looking at her with a smile.

"Grandpa Liu, what's the ...... Is it done over there?" Jin Ling'er had seen Lao Liu Tou when she was in the assembly room just now. At that time, Lao Liu Tou was directing a few small men to be busy assembling the plane, and he looked very busy. Jin Ling'er thought that before the aircraft assembly was completed, Lao Liu Tou would be very busy. But I didn't think about it, I just talked about it for a while, and Lao Liu Tou was already busy?

"Not yet. But it's also fast. The rest was a bit of a banging job, with or without me, so I told the old man to do it all for the little ones, and then I cheekily ran over and asked He Gongzi a few questions about the internal combustion engine. Lao Liu said with a smile.

Look at Lao Liu Tou's modest attitude and kind face, if people who don't know still think that Lao Liu Tou and He Wei have a good relationship. Who would have thought that just this afternoon, less than two hours ago, there was a direct conflict between Lao Liu Tou and He Wei?

And the result of the conflict almost caused Cheng Feng, the closed disciple of Lao Liu Tou, to burp on the spot.

But it's only a lot of work, Cheng Feng hasn't been able to wake up and get out of danger, Lao Liu Tou's side has a relationship with He Gongzi and He Gongzi, and his attitude seems to be so approachable and amiable. In this situation, Jin Ling'er was somewhat confused.

"Senior Liu, don't say that again, if you don't ask for advice, it's just killing the juniors!" He Wei said humbly.

"Hey, as the saying goes, the master is the teacher! He Gongzi was able to build things like an internal combustion engine and an air magic weapon at a young age, so that he could really not be compared to the old man. The old man has never served anyone in his life, but after seeing the internal combustion engine and the air magic weapon designed by He Gongzi, the old man is convinced!"