The next day, Du Wu debugged the giant crossbow machine and invited his mother and the four elders to watch the test firing.

In order to make the crossbow machine easy to handle, Du Wu specially installed four wheels under the crossbow machine, so that during the transportation process, it is fast and labor-saving.

Du Wu created ten crossbow arrows for giant crossbows, each weighing one hundred and twenty catties. Shoot it with a giant crossbow, and the power is amazing. According to Du Wu's estimates, the range can exceed 2,000 steps, and the power can shoot through the two-foot-thick city gate. Of course, there is no city gate for the black barbarians to attack, but the black barbarians have some special troops, and Du Wu's giant crossbow is to deal with them.

It turned out that among the army of the black barbarians, there were elephant soldiers and rhinoceros soldiers. Hundreds of elephants and hundreds of rhinos are a nightmare for ordinary soldiers on the battlefield.

In the past, when the flower barbarians encountered these two special forces, they could only avoid their edges and use traps to deal with them. Fortunately, in the ordinary skirmishes between the two clans, these two forces will not play, but they will always be a formidable opponent.

This time, Du Wu designed these giant crossbows to deal with elephant soldiers and rhinoceros soldiers. According to her plan, the giant crossbow would be hidden, and if the enemy did not send the two special forces, her giant crossbow would not be dispatched, so as not to warn the enemy.

Du Wu invited her mother and the four elders to the school field outside the city, and led people to push the giant crossbow machine to the school field. She invited her mother and the four elders to the viewing platform. Go down and set it up yourself.

She arranged the crossbow machine on one side of the school yard, and prepared a few things on the other side, a huge log with several people hugging each other, a boulder more than a foot square, and a steel plate a foot thick.

She first ordered someone to erect the giant tree, and came to the side of the crossbow machine herself, ready to test fire herself. This crossbow machine was about 1,500 paces away from the giant tree on the other side. In order to understand clearly, Du Wu personally measured it.

She put on the giant crossbow arrow of the crossbow machine, this giant crossbow arrow, two soldiers have to carry it to go up, but the crossbow string of the crossbow machine needs to turn a special winch, otherwise except for the divine power of Du Wu, no one can pull the crossbow string.

Du Wu turned the winch, pulled the crossbow machine to the brittle, and put the crossbow arrow into the arrow slot of the crossbow machine. Through the sight, he aimed at the giant tree on the other side of the school yard.

Du Wu shouted loudly: "The giant crossbow is test-fired, everyone should be careful to retreat." In fact, there is no need for her to say, the soldiers on the other side have already stood far away.

Du Wu was all ready, and flipped the launch switch of the giant crossbow. Just listening to the sound of tom, the earth seemed to shake. Giant crossbow arrows flew out, like a bolt of lightning, heading straight for the target on the other side.

The crossbow bolt has reached the target in the blink of an eye. There was a dull thud in the room. Those with good eyesight can see that the crossbow bolt has completely penetrated the inside of the giant tree, leaving only a tail.

Du Wu ordered the soldiers to push the giant tree away, set the boulder in place, and prepare to shoot the second crossbow.

This second crossbow is even more striking than the first, because the boulder is not like a giant tree, which can cause the bolt to penetrate without breaking. After the boulder was hit by an arrow, it was blown apart and shattered to the ground.

Du Wu tried to shoot the third crossbow again, this time shooting a one-foot-thick steel plate.

This time the sound shook the heavens and the earth, and could be heard from miles away. After this ejaculation, Du Wu invited her mother and the four elders to the scene to watch.

Needless to say, I saw that the giant tree, hugged by several people, was about a zhang thick, and the arrow body of the giant crossbow was completely penetrated, revealing the arrow from the other side. As for the steel plate, which was one foot thick, it was completely penetrated by the giant crossbow, and the giant crossbow exploded a large hole of about one foot in the steel plate, which shows how powerful this arrow is.

Hua Zhixiao and the four elders all praised in unison, this giant crossbow was simply born for war, and with this powerful weapon, the bargaining chips against the black barbarians were a little heavier.