Release that Witch

213. Chapter 213 Stream Ship Solution

    Four days later, the caravan sailed up and drove off the dock.

    Tasa, along with a hundred First Army soldiers, set off for King Capital.

    For several days, Roland and Margery reached an agreement that Tasa could withdraw any amount of gold royal at her store. This cost will be deducted from the Steam engine sales amount. In addition, Roland needs to pay an additional fee. One interest.

    This time the other side brought saltpeter and ore ingot almost twice as much as the last time, but with the deposit of two riverboats, Roland still got more than 2,200 gold royals, which was in Months of Demon. Almost a figure that I can’t imagine – even if I sold a month of ore, there are only three hundred gold royal incomes.

    After the caravan left, Macy also arrived in the Border Town’s days.

    In accordance with the agreement with Ash, she will travel to the fjord islands to bring news about the Western Region’s.

    Roland wrote a long letter to her. In addition to expressing her mutual cooperation and cooperation, she hoped that Fifth Princess could send some auxiliary witches to help herself. In the letter, he did not live as a brother, but negotiated the matter in the name of Border Town feudal lord, Western Region. Although the possibility of the other party’s promise to himself is small, he still has to give it a try – anyway, writing a few words can’t be done.

    The place to go is in the backyard of the castle, and all the witches are in place.

    Nightingale gave her a small bag of dried fish; Lightning gave a packet of pepper.

    Other witches smacked her feathers and shook farewell to her – the battle was just like farewell.

    “Reassured!”She raised her head. “I will be back soon, hehe!”

    “What if Tilly doesn’t let you come back,” Lightning said worriedly.

    “Hey…”The pigeons narrowed their necks and thought for a while, shaking their tail feathers. “Then I will sneak back and fly!”

    “Then we said it,” the little girl seriously promised. “If you come back, I will personally grab a bunch of birds to bake for you.” And the hive we found last time, keep waiting for you to come and get rid of it together. ”

    “Hey!”She nodded again and again, “Say it!”

    Can you say that you are good? Roland was amazed by the side, and it was only a month that he turned Macy to his side. Well done, Lightning!

    “So, everyone see you again!”Macy swelled its wings and ran for a while on the ground before slowly flying. After two rounds, it gradually disappeared to the southeast.

    “She can arrive smoothly.”Roland looked at the slow movement and couldn’t help but squeeze her sweat.

    “No problem,” Lightning didn’t hesitate, then squatted. “Should…… …

    After sending away Macy, Roland quickly plunged into busy daily work.

    This time, he will draw a complete set of designs for the two boats to be rebuilt by Crescent Moon Bay Caravan – and they will be the world’s first steam-powered Stream Ship.

    Thanks to a single power source, the Steam engine power shaft can be connected directly to the paddle wheel without the need for a gearbox. The air intake is controlled by a plurality of intake ducts to control the speed of the ship. To slow down or stop the boat, simply turn off the intake manifold and allow excess steam to escape from the exhaust. At this time, the fire still keeps burning, and it is convenient to speed up again.

    The principle was not difficult, and Roland quickly drew a rough model. In order to get accurate production drawings, you have to go to the site to measure the specific size.

    At this time, Anna walked into the office with a book.

    “What happened?”He put down the quill, and he couldn’t help but smile.

    “This book is finished,” she put the book on the desk, which is the «Theoretical Foundations of Natural Science».

    Roland’s smile suddenly stuck on his face, which is too exaggerated. Only a few months have finished reading the high school math and physics knowledge? He didn’t ask the other person if he understood it, because Anna’s reading means full understanding, otherwise she will definitely look over it again, or ask herself.

    “The drawings you painted are intended to use the Steam engine to replace the sails to power the vessel?”Anna’s attention was quickly drawn to the sketches on the table, “but…”

    “What is it?”

    “Is these two wheels similar to paddling? Thrust can be generated when turning, but half of it is exposed, which is equivalent to wasting some power. Why not bury it all in the water? ”

“……”Roland groaned and didn’t know what to say. The person who knows it exists exists, that is to say, she made the above judgment by the impression of this moment alone? He suddenly raised his interest. “What do you say is better?”

    Anna thought for a moment, raised the pen and started drawing on paper.

    Roland held her chin and listened with interest to her carefully drawing the bangs that slipped from the hairpin. As her movements swayed back and forth, the slender eyelashes bounced from time to time, and the white cheeks revealed the natural rosy. Although this angle can only see the side face, the silhouette from the bridge of the nose to the chin and then the neck to the neck forms a perfect and soft curve.

    “Do you want to eat fish fillets?”Nightingale came over and put his hand in between the two.

    “Well,” Anna nodded, covering the snacks that the latter handed over. “Thank you.”

    Roland, whose eyes were obstructed, coughed twice and had to look back to the paintings on the table.

    At first, Anna tried to completely bury the paddles in the water, but this would make it difficult to observe the position of the wheel when it was docked, making it easy to hit the dock or the trestle.

    Then she placed the paddle wheel at the stern – this is a common practice, but the drive setup is much more complicated. After all, the bulk Steam engine is not suitable for the end of the hull, so the drive shaft and the gear box will occupy the hull. A large part of the location.

    When Roland saw the new drawings she had drawn, she couldn’t help but marvel at her sharp thinking ability.

    The sketch that Anna is pondering is infinitely close to the arrangement of a single-axis propeller. The Steam engine is placed at the bottom of the hull. The drive shaft extends out of the hull below the waterline and ends with four square blades that look a bit like a windmill.

    “I don’t know if I can do this,” she hesitated. “It is reasonable to say that as long as the paddles are kept at an angle, a horizontal component can be generated, but I have reduced one of the paddles. It is impossible to push by four paddles. Hull.”

    “Of course, just a little modification.”Roland took the quill in Anna’s hand and drew the original look of the propeller. “This shape of the blade is more suitable for rotation in the water than the windmill. Your thinking is completely correct, but the contractual requirements are transformed into Stream Ship, so we still do it according to the first method – this is not related to technology, but a business strategy. ”He paused, “I am going to measure the hull data now, are you coming with me?”

    Anna licked the blue eyes, “Well!”

    After mastering the theory, verifying it in practice is the best way to learn.

……

    “Nightingale ?”

    When Anna followed the prince to the door, she saw that the Nightingale was still looking at the drawings on the table and couldn’t help but open the door.

    “Ah, let’s go first, I will come right away.”

    After repeatedly comparing the sketches in her hand, she came to the conclusion: Isn’t the place where the wheels are placed changed to a position?