In this time and space, 1785 is destined to become an extraordinary year.

　　 In the spring of this year, Shixiong took Hekal, who was already 18 years old, to Norfolk, the eastern capital, along the Shangdong Highway, which had just been repaired for less than a year, with Hekal, who was already eighteen years old.

　　 Shangdong Highway is the main road from Shangjing to Norfolk. This trunk road, which is close to 1,600 kilometers in length, has been built for a total of ten years. Along this road, you can reach the eastern capital of Norfolk from Shangjing via the Gaoshu tribe and the Daqingshan base.

　　Similar arterial roads, there are currently seven Yanhuang tribes, all of which start from Shangjing and then lead to the seven most important cities of the tribe.

　　 The width of the road is almost the same as that of the two-lane two-lane roads in later generations. Counting the shoulders, the width of the roadbed is 13 meters.

　　 The roadbed is built with natural soil, and is covered with reinforced cement concrete and asphalt.

　　The road from Shangjing to Gaoshu tribe is reinforced concrete pavement, but the road from Gaoshu tribe to the eastern capital of Norfolk is made of asphalt.

　　The reason why the tribe can use asphalt is thanks to the dedicated work of Bill Gates and his daughter Mary Gates who have been studying oil in Buffalo.

　　 There are three kinds of pitch, coal tar pitch, petroleum pitch and natural pitch. Coal tar pitch is toxic, and the other is that the output is not large. The most important thing is that the performance of coal tar pitch is not very good. It is easy to break at low temperature and soften at high temperature. Therefore, although the tribe produces a lot of coal tar pitch during coking, But that thing cannot be used.

　　 Petroleum pitch is the residue remaining after distilling petroleum. The performance of petroleum pitch is much better than that of coal tar pitch, so when Gates and his daughter developed an industrial refining process at the Petroleum Research Institute in Buffalo, near the Oil Creek State Park in the northeastern corner of Pennsylvania, the United States, The construction of large-scale oil refining equipment began, and a large amount of asphalt was also released.

　　 Then the roads built by the Yanhuang tribe began to use asphalt.

　　 As for natural asphalt, although there are basically no toxins, the output of that thing is too small, and the stone bear can not afford the natural asphalt to pave the road.

　　 At this time, the product after crude oil distillation was mainly kerosene used to make kerosene. Of course, Ishikuma also instructed Gates and his daughter to develop a method for producing gasoline.

　　 Although Ishikuma knows the general structure of the internal combustion engine, and the scientific research team headed by Jack Williams also built the internal combustion engine, because of the material, the built internal combustion engine cannot run for a long time.

　　 The internal combustion engine is easy to make, but the key parts like pistons and crankshafts need to be made of excellent materials. Before material breakthroughs were made, the internal combustion engine made was just a look.

　　 But gasoline can be used in the military.

　　The crude oil is distilled to obtain kerosene and gasoline. The gasoline is mixed with aluminum soap thickener to turn the liquid gasoline into a gel. Well, this gelatinous gasoline is the basic raw material for making that kind of indescribable bomb...

　　 Now the Yanhuang tribe has built rigid airships, but Shixiong does not want this thing to be exposed to Europeans, so rigid airships are now only used in the west, north and southwest. Of course, the Grim Bear Air Force commanded by the Black Wolf is also equipped with a lot of rigid airships.

　　Once the Air Force’s rigid airship enters the battle, it is only necessary to fly the airship over the enemy, and then desperately throw this indescribable bomb down, which can definitely make the enemy sour and don’t want it.

　　 After kerosene and gasoline are produced, the remaining bitumen will become the main material for road paving and roof repair.

Now near Titusville in the north of Oil Creek State Park in northeastern Pennsylvania, the later Americans, oil workers from the Yanhuang tribe have drilled several oil wells, and in this valley surrounded by mountains, an oil refinery has also been built. Established. A steady stream of petroleum pitch, kerosene, and gasoline will sail downstream along the Youxi River, into the Allegheny River, and finally into the Ohio River.

　　 Smooth waterway traffic can transport bulk goods to areas where these materials are needed.

　　The main roads of the Yanhuang tribe were built bit by bit by relying on the developed water transportation lines.

Of course, there are still many branch roads on the trunk roads such as the Shangdong Highway. For example, the branch road from Daqingshan to Monongahela has also been repaired. In addition, there are also many branch roads on the main road to Buffalo, such as Speaking of the branch road leading to the ancestral land...

　　 Generally speaking, relying on the seven main roads and developed waterway traffic, the traffic situation of the Yanhuang tribe has been greatly improved.

　　Because I don't want to expose the airship to the Europeans for the time being, I can only ride over in Norfolk this time.

　　 Although the road has been repaired and the running is fast, the journey still consumes a full half a month of Shixiong and his party. Of course, if you take an airship, it only takes about five days from Beijing to Norfolk.

　　 There are many things to do when Ishikuma comes to Norfolk this time. One of the most important things is that the Carlos-class steel battleship has been completely finalized.

　　 This steel battleship can be finalized, it can be said to have gone through hardships. The Carlos was built in 1770~lightnovelpub.net~ and it took six full years to launch.

　　 But when it was launched for the first time, the ship had a leaking propeller, so it had to go back to the dock to continue the renovation.

　　 With the continuous emergence of new technologies, the transformation of this ship has never stopped. For a full ten years from this year, the ship has not known how much it has undergone transformation, and finally it is finally finalized.

　　 Although eight Carlos-class steel battleships were successfully launched during the period, Stone Bear is still most concerned about the Carlos battleship.

　　 Now that this battleship with the earliest construction but the latest finalization has finally been launched again, Shi Xiong must come and take a look in person.

The Carlos is definitely a ship that has gathered all the energy of the entire Yanhuang tribe before it is finally finalized. Although in the ten years of continuous improvement of the Carlos, eight more ships have been built out of the eight new docks built by the Norfolk Shipyard. The same Carlos-class steel battleship, but only the Carlos is the most outstanding treasure of the Norfolk Shipyard.

　　 Although the eight warships did not have the problems that the Carlos once had, they could go to sea for long voyages and had the ability to conduct naval battles, but the eight steel warships could not be the standard.

　　 Because both Stone Bear and Adrian Carlos believe that only the final form of the Carlos can become the standard for the Yanhuang tribe to build warships in the future. And if the technology is further improved in the future, the newly built battleship will also be upgraded with Carlos as the standard.

　　 In other words, the Carlos is the template for the steel battleship of the Yanhuang tribe in the future!

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