Hearing the explanation of tassels, everyone present secretly admired that the operation principle of this ship is very simple, but to be honest, it is definitely not a simple thing to build such a ship. First, because of different driving modes, the streamline design of the hull needs to be changed to make it more suitable for dividing water in the waves, The maximum speed of the ship powered by this air pressure is definitely not comparable to that of ordinary ships. The pressure on the hull at full speed must be great, so the internal reinforcement frame of the hull also needs to be redesigned.

These changes are likely to cause unnecessary burden on the ship and cause the hull to be too heavy. Therefore, the larger the ship should be, the better. However, if the ship is too large, the boiler as the power must be increased, and the dead weight of the ship will exceed the standard.

To put it bluntly, the design of the ship must take into account all kinds of harsh requirements such as low resistance, high firmness, super air tightness, light weight and small volume. As long as the design is unreasonable, the ship will not be able to sail or sink after sailing.

To tell you the truth, although tassels are famous, they didn't feel that the guy with a moustache was as powerful as the legend, but this time they really admired him.

The return voyage began. The tassel was so impatient that he couldn't wait to go out. So he adjusted the speed of the ship to the maximum after driving out of the shallow water. The whole ship seemed to be flying under the action of huge air pressure. It would even fly when encountering waves, and the people in the ship would be very nervous every time there were such bumps, On the contrary, tassels are used to these and spread charts on the table to study the coordinates!

Because I want to go back to Qinglong mainland, the direction of the longtianci people's voyage this time is Qinglong mainland. Longtianci and Pisan have discussed it. When I arrive in Qinglong mainland, longtianci will give them a lot of money to buy a new ship. When they want to go back to Xuanwu mainland, they will follow them, Long Tianci took long Kui and Bai Jin directly to the imperial city of Qinglong Empire to find Zhou Zixuan. When he left the imperial capital with Zhou Zixuan, they went to the temple to see Xuanxin. No matter how Xuanxin treated himself, he always had to take this step bravely, otherwise his heart knot would not be solved all his life!

The tassel told long Tianci that the dead sea and the dark sea are almost covered with islands, so they can't go back from their way, so they can only take a detour. Of course, the nearest route is the sea of fire between Zhuque and Qinglong. In comparison, it's much easier to cross the sea of fire than thunder and ice, In the past, tassels left here from the sea of fire!

Since the tassels say so, of course, people have no opinion, but the legendary sea of fire is burning on the sea, and the flame is very strange. It will touch anything and burn it to ashes. People are still worried about this sea, especially ordinary people such as Jiugong and Pisan, who have an inexplicable fear of passing through the sea of fire.

With the super-high speed of the pneumatic ship, it took less than five days to cross the sea area of the underworld that people had sailed for a whole month before. Then what was in front of us was the sea of fire burning with flames!

Before really seeing this sea of fire, long Tianci also thought in his mind what this sea area would look like. In long Tianci, he wanted to come to a large sea area. It is impossible for there to be flames everywhere. The so-called sea of fire is nothing more than that there will be some flames in this sea area.

But after really seeing this sea of fire, long Tianci and others were all stupid. The sea of fire really deserves its name. The whole sea area is covered with strange dark blue flames, and the sea surface can hardly be seen. The sea water may be baked by the high temperature. The sea water on the sea surface is constantly churning, just like boiling water in a big pot!

Because it is covered by fire all the year round, there is thick water vapor on the sea, which almost shortens the line of sight to less than five meters. There are blue flames and white water vapor everywhere, which makes people feel very strange!

Before entering the sea of fire, the tassel stopped the ship, then gathered everyone together and gave instructions. He told everyone that when crossing the sea of fire, everyone must stay in the cabin and never come out without orders. In addition, after entering the cabin, the people in the cabin must completely seal the gap of the cabin door with wet cloth to prevent the outside gas from leaking in, For fear that others would forget it, Liusu repeatedly told everyone to do so!

In addition, the ship will cross the sea of fire at the fastest speed, so it may be very bumpy. People should fix their bodies in the cabin to avoid collision accidents due to bumps!

Everyone understood the order of the tassel. Then the tassel let everyone enter the cabin, but long Tianci stayed. The tassel said that once he sailed into the sea of fire, he would never stop. In order to prevent accidents from taking him by surprise, long Tianci wanted to stay and help himself!

When everything was ready, the tassel ordered the people in the cabin to fill the boiler with firewood, and then drove the ship into the sea of fire with full horsepower!

The tassel asked long Tianci to surround his face with a wet cloth. Long Tianci didn't ask, so he did it directly. After three or four minutes of rapid driving, the ship completely rushed into the sea of fire!

Although the fire was burning, the speed of the ship was too fast to ignite the ship, and the tassel held the rudder and stared at the sea without even blinking.

Long Tianci saw that the tassel was very nervous now, so he didn't dare to speak. He was just ready to help when the tassel ordered. However, after sailing for more than two hours, the tassel didn't say a word.

Long Tianci, who couldn't hold back, asked the tassel, "master, I really don't understand why the sea burns. Flame and water restrain each other. It's incredible that the sea is on fire!"

Without looking back at long Tianci, the tassel stared at the sea in front of the ship and explained to long Tianci: "Of course, the sea water can't burn. The reason why it is covered by fire is that there is a large underground gas field of combustible gas under the sea area. Because of the crustal change and volcanic eruption on the seabed, huge cracks have been shaken out on the seabed, and the combustible gas rises from the seabed to the sea surface. Once a little spark appears on the sea surface filled with combustible gas, it can be ignited, and It is impossible to extinguish it after it is lit, so this sea area has become what it is now! "

Hearing the explanation of tassels, long Tianci suddenly felt enlightened. It turned out that this sea area has become like this. The power of nature is really terrible! This sea of fire alone is beyond the comprehension of ordinary people!

Just when long Tianci was shocked by the truth of this sea area, the tassel suddenly shouted bad, and then let long Tianci take the helm instead of him, while he grabbed a long bamboo pole and rushed to the deck, and used the bamboo pole to support it in the thick fog. When the bamboo pole was pushed out, long Tianci clearly felt that a great force came from the rudder in his hand, and then the ship At the same time, a huge reef on the side of the ship almost scraped against the ship, and the ship even made a creaking friction sound!

For more than half an hour, long Tianci completely replaced the tassel at the helm, and the tassel poked into the thick fog from time to time with the big bamboo pole in his hand, which could make the ship avoid the reef every time.

With the rapid sailing of the ship, long Tianci found that the surrounding flame finally disappeared, and the water vapor diffused in the sea gradually dissipated. Seeing this, the tassel on the deck shouted to long Tianci, "OK! You can slow down! We finally rushed out!"

After saying this, the tassel threw away the bamboo pole in his hand, and then sat on the deck feebly. It was obvious that he had consumed a lot of physical strength to help the ship avoid the reefs. After hearing this, long Tianci breathed out a breath and loosened his hand holding the rudder, which was full of sweat in his palm!