This time, Jiang Feng plans to build two rune cannons, which will be located at the top of the castle. The effective range of the cannons must be at least 20 kilometers, and the accuracy at longer ranges is difficult to grasp.
Mainly used to deal with large mutant beasts, fighter jets, and even large buildings!
After figuring out the principle of the electromagnetic gun, the technicians and researchers received the task assigned by Jiang Feng. The principle of the electromagnetic gun is not complicated, but other problems are difficult, such as expanding the capacitance and the volume of weak energy.
However, with the advent of energy crystals, various new materials and lightning runes, these problems have been solved.
The specific design plan was handed over to Jiang Feng yesterday. After completing the city wall, Jiang Feng immediately gathered people to prepare for the production of the rune cannon.
The main body of the cannon was completed by Jiang Feng according to the drawings. As for the remaining parts, they are more complicated. In addition to some rune parts, a lot of electronic mechanical technology is also used.
After the main body is completed, the remaining work will take a long time to complete. Jiang Feng also took advantage of this time to start making rune shells. The production cost of each shell is very high. These are disposable consumables. In addition to precious energy crystals and secret gold, there are also mechanical trigger devices made of meteorite iron.
After a few days, the rune cannon was assembled. The entire cannon body was three meters high and the barrel was thirteen meters long. Moreover, the barrel was not cylindrical but rectangular, with a large number of superconducting coils inside.
The entire rune cannon is powered by two fist-sized energy crystals. Inside, there are hundreds of multiple lightning rune secret gold metal pieces connected together to generate electric current. A large number of electronic mechanical structures can realize automatic aiming, replacement of shells, remote control, target locking and other functions.
At the same time, in order to ensure the quality of the rune cannon, Jiang Feng also added some additional sturdy and defensive runes to the cannon.
The rune shells are also 30 centimeters long and 6 centimeters in diameter. They are bullet-shaped with spiral patterns on the surface.
After all the parts were ready, it was time for the testing phase. In order to test the effect of the cannon, Jiang Feng woke up the sleeping turtle and asked it to leave and go out to look for the target.
After all, this valley is surrounded by mountains, so it is not suitable to test in it.
After leaving the valley, Jiang Feng directly found a hill that looked relatively high, about ten kilometers away from them.
After determining the target, Jiang Feng immediately asked Anna to start controlling the rune cannon to prepare for the attack. The cannon's horizontal shooting angle was 360 degrees and the vertical angle was 120 degrees.
“Whoosh!”
After the cannon was started, the shells were placed, and then all the lightning runes began to generate electricity instantly. Then all the current was concentrated and released into a large number of coils, causing the shells to accelerate instantly. By the time the shells left the cannon, their speed had reached at least three thousand meters per second!
There was no loud explosion like that of an ordinary cannon, and even the sound of the shells breaking through the air was extremely brief.
The distance of more than ten kilometers was really reached in the blink of an eye. Driven by the huge kinetic energy, the shell drilled into the mountain without any suspense. The dense runes inside the shell took effect instantly, and the powerful electric current and ultra-high temperature burst out instantly. A super large hole was instantly blown up behind the entire mountain, and then the mountain began to collapse under the gaze of everyone.
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