When the turtle crawled from the mountains to the plains, most people in the castle found that they had left the mountains and couldn't help cheering. Ordinary people had already developed a psychological shadow on the vast mountains, because there were either terrible mutant beasts or mutant insects whose numbers were so large that they made people despair.
Outside the mountains, the scene Jiang Feng saw was completely different from when they left. It was no longer the kind of withered and despairing scenery. Now there were green vegetation everywhere, lush weeds, blooming flowers, and a blue sky, as if the whole world had become more beautiful.
After leaving this mountainous area, the turtle will carry them into the Chengdu Plain, but this time they will be on the south side of the plain, instead of going around to the west side of the plain when they left.
The biggest difference between the two is that before the apocalypse, this place was densely populated with towns and a large population, so it can be expected that the main enemy they will face if they continue to move forward will become endless zombies.
Jiang Feng tapped his fingers lightly on the metal wall in front of him, thinking carefully about the impact of the rainy season on zombies and how to deal with them. Jiang Feng felt that zombies were the most unstable factor and were likely to undergo major changes.
"Have you finished your design?"
After thinking for a while, Jiang Feng felt that it was impossible to get any useful conclusion from such speculation, so he simply came directly to find the flower fairy. If the defense system could be completed earlier, Jiang Feng would feel more at ease.
"Well, most of the designs have been completed, but it will take some time to make the auxiliary programs." The flower fairy took out some drawings for Jiang Feng and began to explain them to him.
There are many firing holes in the entire castle, so it is impossible to install crossbows on all of them. The castle has six sides, and according to the flower fairy's calculations, each side requires at least ten crossbows to form fire coverage!
This crossbow is a heavy crossbow. The main structure is in the shape of an I according to the design of the flower fairy. The bottom is located on the ground, and the middle is connected to the crossbow by a support column. The support column can adjust the height. The most critical part is the crossbow above, with a double-bow design. The crossbow arm can fire two arrows at the same time. The quiver is automatically loaded with arrows. Each quiver can hold 500 arrows at a time.
Then other technicians added power units and mechanical and electronic control equipment based on the main design of the Flower Fairy. These things allowed the entire crossbow to be computer-controlled. The shooting angle of the upper part of the crossbow reached 120° horizontal rotation and 90° vertical rotation. Such variable angles are enough to cover a large area.
The maximum firing rate of the entire crossbow can reach ten times per second, which means twenty arrows. One wall of the castle can simultaneously shoot two hundred arrows per second!
Such firepower configuration can already meet Jiang Feng's requirements. You should know that in addition to this, there are also combatants in the combat rooms on each supporting pillar. In addition to the bed crossbows, Jiang Feng also equipped each of them with a military crossbow.
Moreover, too many repeating crossbows will put great pressure on logistics. Each arrow needs to be made by our own people. Although we now have the help of mutant termites, there are still some areas that need to be handled by technical personnel.
After Jiang Feng listened carefully to the Flower Fairy's explanation and confirmed that there was no problem, he prepared to make a test machine to try it out.
Jiang Feng himself will also join in this process. On the one hand, it is convenient for him to make these things because he has the metal ability, and on the other hand, it is for learning!
After making the decision, Jiang Feng first walked outside the castle and asked the turtle to find a place to stop. He asked Zhou Qing and the others to explore the surrounding situation and arrange what others needed to do. Only then did Jiang Feng have time to make the crossbow.
First, we called all the people involved in the project, and then started making it.
The first step is to make the crossbow arm. According to the design requirements, the crossbow arm has too high a bending frequency due to the catapult, and the strength and toughness of the special alloy cannot meet this requirement. Fortunately, the flower fairy has found the right material. Don't forget that she is not only an expert in ancient weapons, but also an expert in materials science!
This material is a composite material, consisting of giant beetle shells, elastic steel, animal bones, and an extremely sticky adhesive (which seems to be made from the skin and tendons of some creature).
The carapace is not the thick outermost layer of the giant beetle, but a very thin carapace under its wings. After her special processing, it has extremely strong toughness. This material is cut into strips of 1.5 meters long and 4 centimeters wide, and then tightly attached to the polished animal bones, making it both tough and strong.
Then the entire crossbow arm is shaped using steel so that it can be connected to the bowstring.
The bowstring is of course made of the tendons of a giant mutant beast, and Jiang Feng has quite a lot of this.
The other parts can be made entirely of steel, but in order to reduce wear, it is best to use special alloys for the crossbow connection parts.
Thanks to the efforts of Jiang Feng and others, the first crossbow was soon completed. However, this crossbow only had a mechanical part, and the electronic control part still needed to be slowly produced by technicians.
The entire crossbow is in the shape of an I-beam, with the bottom and top parts being the main body. The firing process is very simple. You just need to turn on the power system, aim at the target and press the trigger.
After moving the finished heavy crossbow to the third-floor battle corridor and placing it at a shooting port, Jiang Feng took them out of the castle and placed some targets at different distances, and then prepared to start the performance test of the repeating crossbow.
The arrows used by this crossbow are just ordinary arrows, but the force and speed with which they are fired are much greater than those of a military crossbow.
This chapter is not over yet, please click on the next page to continue reading!
Continue read on readnovelmtl.com
