I, Kizaru, only came to the chat group after I became invincible

Chapter 465 Lavala's Great Benefactor

“Then how should it be improved?” a young craftsman asked.

“Add a propulsion system.” Franky drew a propeller device on the blueprints. “Look, this is a thruster. By rotating, it generates thrust, allowing the aircraft to move forward on its own.”

The craftsmen carefully studied the blueprints for the "propeller." "What's the working principle?"

“Aerodynamics,” Franky explained. “When the propeller spins at high speed, it pushes the air backward, creating a reaction force that propels the aircraft forward.”

"I see!" Tony exclaimed, suddenly understanding. "It's like paddling a boat!"

“That’s right!” Franky nodded approvingly. “You understand very quickly.”

"Where does the propulsion system get its power from?" the older craftsman asked.

“It can be powered by wind, or by human power, but mechanical power is best,” Franky continued drawing. “I suggest using a gear transmission system, driven by human pedals.”

He then drew a complex gear system, clearly labeling the function of each component.

"This gear combination is ingenious!" exclaimed a craftsman specializing in mechanical transmissions. "By using gears of different sizes, the rotational speed can be increased!"

“That’s right!” Franky said happily. “Looks like you’re an expert too.”

“But,” Tony frowned, “wouldn’t it be too tiring to pedal manually?”

“That requires optimizing the gear ratio,” Franky said. “Through proper gear matching, you can generate more power with less effort. And, if you'd like, I can teach you how to build a spring-loaded energy storage device.”

"Spring energy storage?" The craftsmen were intrigued.

“It uses the elastic potential energy of a spring to store energy,” Franky explained. “People tighten the spring, and then release it to drive the propeller. This allows for a powerful burst of force when needed.”

"That's wonderful!" the craftsmen exclaimed excitedly.

Over the next few hours, Frankie explained in detail the various technical aspects of the aircraft's improvements. From the power system to the transmission, from the control mechanism to the safety devices, every aspect was explained clearly.

The craftsmen listened intently, occasionally asking questions, which Frankie patiently answered. This technical exchange was enjoyable for both sides.

“Oh, right,” Tony suddenly remembered something. “Frankie, we’d also like to ask you to help design some ground transportation.”

"Ground transportation?" Franky asked, puzzled. "Don't you all use flying vehicles?"

“While flying machines are convenient, they are inefficient for transporting heavy loads,” the older craftsman said. “We need a vehicle that can transport large quantities of goods on the ground.”

“That’s easy!” Franky picked up his pen and paper again. “I’ll design a lightweight, stone-powered car for you.”

He quickly sketched a unique vehicle. Lightweight stones were fitted to the underside of the body to reduce overall weight. The four wheels also had a special design to minimize friction.

“This kind of vehicle uses pumice to reduce weight, making the body very light, so even when loaded with heavy loads, it won't be too heavy,” Franky explained. “Then it can be pulled by simple human or animal power.”

“And the wheel design is quite unique,” ​​Tony noted, observing the details. “What are these grooves for?”

“Reducing friction while increasing grip,” Franky said. “On smooth surfaces, grooves increase friction; on rough surfaces, grooves can fit into gaps, increasing stability.”

"I see!" The craftsmen learned something new.

Franky spent the entire day in the workshop designing various civilian mechanical devices. In addition to vehicles, there were also improved agricultural machinery, construction tools, and living facilities.

As the sun set, the workshop tables were covered with design drawings.

“Thank you so much, Franky!” Tony said excitedly. “These designs are fantastic!”

“If we follow these blueprints, our technical skills will improve by at least one level!” The older craftsman was also very excited.

“Don’t mention it,” Franky laughed. “Technology progresses through exchange.”

Just then, the door was pushed open. A man in military uniform walked in; he appeared to be an officer from Lavala.

"Excuse me, which one of you is Mr. Franky?" the officer asked.

“That’s me.” Franky stood up. “What can I do for you?”

“I am Garrison, the captain of the Lavala Guard,” the officer introduced himself. “I’ve heard you’re helping our craftsmen improve their techniques, and I’d like to ask for your help as well.”

"What kind of help?" Franky asked.

“We would like to ask for your help in designing some new weapons,” Garrison said directly. “Ravan’s current weaponry is very outdated. If we encounter a threat like Damon again, we will still be powerless to fight back.”

These words silenced the entire workshop.

“Weapons?” Franky repeated, his tone becoming serious.

“Yes,” Garrison continued. “We need more powerful weapons to protect Lavala. With your exceptional skills, if you could help us design some advanced weapons, we could…”

“Sorry,” Franky interrupted him. “I refuse.”

“What?” Garrison was stunned. “You refuse?”

“Yes, I refuse to design any weapons.” Franky’s attitude was firm.

"Why?" Garrison asked, puzzled. "Weren't you very willing to help Lavala? Why aren't you helping us strengthen our defenses?"

“Helping Lavala and designing weapons are two different things,” Franky said seriously. “I can help you improve your vehicles, agricultural machinery, and living facilities, but I will never design weapons.”

“I don’t understand,” Garrison said, frowning.

Frankie took a deep breath and began to explain his reasoning.

“My master, Tom, once built a warship.” His voice deepened. “That warship was originally built to protect Water Seven, but it was ultimately seized by the World Government and used to attack Buster Cauldron Island, causing the deaths of countless civilians.”

Everyone in the workshop listened quietly.

“The master craftsman was sentenced to death for building that warship,” Franky continued. “Although his intentions were good, his technology was ultimately used for slaughter.”

“This experience taught me a lesson,” Franky said, looking at Garrison. “Once weapons are created, they escape the control of their creators. You can never guarantee they will only be used for 'just' purposes.”

“But,” Garrison wanted to argue.

“I understand your intention to protect Lavala and defend against threats,” Franky said. “But if you use these weapons for defense today, someone might use them to attack tomorrow. The essence of weapons is to harm and destroy, no matter how righteous the intention.” “But without weapons, how do we protect ourselves?” Garrison asked.

“Protection doesn’t necessarily require more powerful weapons,” Franky said. “You see, I can help you design stronger fortifications, more effective early warning systems, and faster evacuation routes. These will protect the people, but won’t be used to harm others.”

“This…” Garrison fell into thought.

“Moreover,” Franky added, “Damon’s example is clear. He possessed immense power, but was ultimately stopped. Not because we had stronger weapons, but because we had the right beliefs and the power of unity.”

“Weapons can’t solve all problems,” Franky said earnestly. “Sometimes, wisdom, courage, and unity are more powerful than any weapon.”

Garrison remained silent for a long time before finally nodding.

“I understand,” he said. “You’re right. Perhaps my thinking was too simplistic.”

“It’s not your fault.” Franky’s tone softened. “Wanting to protect your home is human nature. But there are many ways, not necessarily relying on weapons.”

“Would you be willing to help us improve our defense system?” Garrison asked. “Not offensive weapons, but purely defensive facilities.”

“That works.” Franky nodded. “Defensive facilities, I’d be happy to help.”

Garrison breathed a sigh of relief and then left the workshop.

The craftsmen looked at Frankie with eyes full of admiration.

“You’re a man of principle,” Tony said sincerely.

“Principles are important,” Franky said. “Technology without principles can easily lead you astray.”

“We will remember your teachings,” the elder craftsman said solemnly. “Technology should be used to benefit the people, not to harm them.”

“Exactly!” Franky gave a thumbs up. “That’s true craftsmanship!”

The next day, Franky continued working in the workshop. This time, he focused on helping the craftsmen build the prototype of the first improved aircraft.

“First, we need to ensure the precision of each part.” Franky inspected the gears being processed by the craftsmen. “The gears must mesh tightly, but not too tightly, otherwise it will increase friction and wear.”

"Understood!" The craftsmen carefully adjusted the processing parameters.

Under Frankie's guidance, the prototype's components gradually took shape. The thrusters, transmission system, and control devices—every part was meticulously crafted and repeatedly tested.

“The amount of pumice is also very important,” Franky said. “Not too much, not too little. Too much will cause the aircraft to ascend uncontrollably, too little will prevent it from taking off.”

“We’ll configure it according to your calculation formula.” Tony carefully weighed the pumice. “The total weight needs to be reduced by the machine’s weight and payload, then multiplied by a safety factor.”

“Yes!” Franky nodded in satisfaction. “You learn very quickly.”

After three days of hard work, the first improved aircraft was finally completed. Its shape is more streamlined than that of traditional aircraft, with rotating thrusters on both sides of the fuselage, and foot pedals and control sticks in the cockpit.

"It's so beautiful!" the craftsmen exclaimed, surrounding the new aircraft.

“Now it’s time for testing,” Franky said. “Who will be the first test pilot?”

“I’ll do it!” a young craftsman volunteered.

Under everyone's tense gaze, the young craftsman sat in the cockpit and began to operate the machine. He pressed the foot pedal, the gear system started to turn, and the thrusters gradually accelerated.

"Takeoff!" someone shouted.

The new aircraft took off smoothly, at least three times faster than traditional aircraft. More importantly, the test pilot could freely change direction and altitude using the control stick.

"It's so agile!" the test pilot exclaimed excitedly. "It's much better than previous aircraft!"

He demonstrated various maneuvers in the air—accelerating, decelerating, turning, climbing, and descending—each movement was fluid.

"We did it!" the craftsmen cheered.

Frankie smiled with satisfaction. The sense of accomplishment from seeing his design successfully implemented was irreplaceable.

After the test flight, the news quickly spread throughout the city of Lavala. The elders personally came to inspect the workshop.

"This is the new type of aircraft?" Elder Alva exclaimed in amazement. "It certainly looks much more advanced than the traditional ones."

“Yes,” Tony proudly announced. “With Franky’s help, we successfully built this prototype. Its speed, agility, and maneuverability far surpass those of traditional aircraft.”

“And it consumes less energy,” Franky added. “It uses only half the amount of pneumatic rock as traditional aircraft, but its performance is better.”

"That's wonderful!" Elder Elena exclaimed happily. "If we can mass-produce these aircraft, our transportation efficiency will improve dramatically."

“Not just aircraft.” Tony pulled out other blueprints designed by Frankie. “Frankie also designed various machines for us, including ground transport vehicles, agricultural harvesters, construction cranes, and more.”

“These designs are very practical,” Elder Cassius said, carefully examining the blueprints. “And they take our actual situation into account, requiring only simple materials to manufacture.”

“Mr. Franky is truly a great benefactor of Lavala,” Alva said gratefully. “He not only defeated Damon but also helped us improve our skills.”

“Don’t say that,” Franky said, a little embarrassed. “I’ve learned a lot from you guys too. Your application of pumice technology is more advanced than anywhere else in the lower realm.”

“That is the wisdom of our ancestors,” Elena said modestly.

“Oh, right.” Alva remembered something. “I heard Captain Garrison asked you to design a weapon, but you refused?”

“Yes.” Franky nodded. “I have my own principles.”

“I understand and respect your principles,” Alva said. “In fact, our council of elders doesn’t want Lavala to become a place filled with weapons either. Peace is what we pursue.”

“That’s a great idea,” Franky agreed.

“But Garrison said you’d be willing to help improve the defense system?” Cassius asked.

“Yes, I can help with purely defensive facilities,” Franky said. “Like stronger buildings, more effective early warning systems, and safer shelters.”

“That’s great,” Alva said. “We definitely need to improve in these areas.”

Over the next few days, Franky continued working in the workshop. In addition to guiding the craftsmen in mass production of the new aircraft, he also designed many other civilian facilities.

(End of this chapter)