A few days later, the installation of sea fires and trebuchets on the fleet was completed.
Speaking of installation, in fact, the Ocean Fire device on the Pirate Kingdom ship was moved intact to Andrea's ship, and several trebuchets used to attack Azov City were slightly modified and moved to Andrea's ship. Just on the ship.
Ella originally wanted to install new trebuchets on each of Andrea's ships, and the pirates wanted to do the same. But this would take too much time and would affect actual combat drills, so we had to give up.
Under the guidance of Ella, Andrea looked at the results of the modification.
How to place large catapults on the ship and prevent the ship from rolling over is one of the issues that interests Andrea most. He once captured the Flying Zealander, but he couldn't understand the structure of the catapult on it. This time, he also vaguely felt that these trebuchets were a bit strange, but he couldn't tell what was strange at the moment. He could only listen to Ella's proud introduction:
"The most critical thing when installing a large trebuchet on a ship is to solve the balance problem. Especially at the moment when the stones are thrown, the ship is extremely easy to roll over. The solution was mentioned by Archimedes, but it can be The only one who can restore it is me..."
Ella jumped onto the boat and ran to the left of the trebuchet, then to the right of the trebuchet, and then got under the trebuchet. She was absorbed in explaining Andrea, but the more Ella explained, the more Andrea Ya became more and more confused. Finally, he shook his head as if giving up and said: "I have a general understanding of the trebuchet. Can you please tell me in detail about the fire of the sea?"
"Ocean fire? That's even more powerful!" Ella said more and more excitedly, "The island republic's ocean fire will automatically burn when it encounters the air. It relies on powerful alchemy. It is prohibited by the Seven Hills Empire Without alchemy, we cannot create such ocean fire. But relying on engineering, our ocean fire can still burn and spray!"
Ella enthusiastically opened the cover on the Ocean Fire and explained the internal structure to Andrea.
"This is a container containing liquid. Here is a pedal that can inject air into the container. As air is continuously injected, the pressure will increase, and then the mixture of air and liquid will be ejected from the valve in the middle. There is a valve in front of the valve. With a small fire source, as soon as the mixture passes through the fire source, it will be ignited, and then a flame will be sprayed forward. A regular ocean fire can burn on the sea surface, but I can't do this, but the principle of the device is the same..."
"You know so much about ocean fire, why don't you prepare a regular ocean fire that can burn on the ocean?" Andrea asked.
"Because of the raw materials! The formula of Ocean Fire is very complicated, and some of the raw materials are very rare. It is difficult for me to find them in Sweden. Moreover, the formal production process of Ocean Fire is very complicated and requires very skilled craftsmen and very professional equipment. I am now It can be replenished at any time in Azov City when it is used up, but regular ocean fire cannot be produced and can only be produced in Constantiniya..."
Andrea looked at the liquid in the container and thought thoughtfully: "I see. Since the island republic's ocean fire requires more advanced skills, there should be the same problem. You just said that the island republic's ocean fire Will fire spontaneously ignite when exposed to the air?"
"Yes, if the other party wants to install the ocean fire on the ship, they can save this ignition device..."
"I still prefer your Ocean Fire, King of Sweden." Andrea closed the cover of the Ocean Fire. "After all, a sword that is too sharp will easily hurt you."
"Then we will try to see if there is any way to deal with the Island Republic's flying device." Ella said, "Amy, bring the device you built!"
"Huh?" After hearing what Ella said, Amy was startled: "Your Majesty, didn't the development of that thing fail? Your Majesty's ocean fire cannot burn when exposed to the air like Paracelsus's. So the flying device lacks power. Without power, that thing is just a ball and cannot fly..."
"What ocean fire do you want? Isn't its principle just that the heat rises upwards? It's just a heating prop. Amy, sit on it and it will fly!"
"???"
Amy looked shocked.
——The hot air balloon carrying Amy floated up.
"Your Majesty, be careful! Don't really knock me out of the sky——"
Amy's voice floated higher and higher, becoming increasingly inaudible.
"Is it actually so high?" Looking at the small dot in the sky, Andrea looked a little grim, "Looking like this, it's impossible for a bow and arrow to reach it."
"Try it with my trebuchet!"
"Trebuchet?" Andrea was confused, "This thing can't be thrown upward, can it?"
"I modified it when I installed the trebuchets! Now they smash upwards! Come on, try to see if you can knock down this balloon!"
Andrea suddenly realized that no wonder he, who didn't know much about engineering, thought these trebuchets were a bit strange just now.
Soldiers from the Republic of Liguria began loading stone bullets. Andrea squinted his eyes for a while, then suddenly thought of something, and shouted in a panic: "Wait a minute, the fleet docked at the port is too dense..."
But it was too late. The dozen or so trebuchets threw stone bullets one after another. But before these stone bullets reached half the height of the hot air balloon, they fell back from the sky with a clatter.
From the perspective of the soldiers, it looked like a rain of stones from the sky. The soldiers of the Ligurian Republic fled in panic with their heads in their hands. There was just a "clang" sound, and a big hole was made in the deck of a ship.
"Hmm..." Ella held her forehead in thought, "Even the trebuchet can't hit it?"
"Even if it hits, if it falls from this angle, it will hit the boat!" Andrea couldn't help shouting.
Ella sighed: "There is no other way. Let's modify the trebuchet to shoot forward. Fortunately, we have enough time..."
"Your Majesty...!" Amy lowered the hot air balloon halfway and shouted to Ella on the ground, "Our ship is coming in the distance!"
"Ships? Why are our ships coming back?"
Not long after, Ella also saw the ship Amy was talking about. She recognized that they were the pirates she had sent to Constantiniya to inquire about the movements of the Guards - after they informed Ella in letters that the Guards had sent troops, Ella did not arrange new tasks for them.
Seeing this group of pirates running in a hurry from the direction of Constantiniya, Ella felt confused:
"What's going on? Could it be that the Imperial Guards have repelled the enemy and come back?"
The pirates replied breathlessly: "The Praetorian Guards have not returned...but, but the army of the Island Republic has landed! The number is nearly 20,000! The Thracian Field Army was completely defeated as soon as it came into contact. When we escaped, Constantiniya is surrounded!"
