Ever since Zhang Tie was hunted by the Wing Demon last time he had to fly a glider into the water before escaping, the engineers at the Glider Base of the Horn Republic have been busy helping Zhang Tie to build a new glider.

In order to build a new glider for Zhang Tie, the base chief Colonel Haulsen also contacted the country in person. The Republic of Horn finally sent a team of experts to Celness with several train carriage equipment and tools.

Zhang Tie didn't know at the time. When he knew about it, the expert team of the Republic of Horn had arrived. Zhang Tie was still a little embarrassed about the mobilization of such a regiment. After the base leader Colonel Haulson explained, Zhang Tie realized that his current fame was actually very famous in the Republic of Horn.

After his story with this glider base was spread to the Republic of Horn, and after domestic media of the Republic of Horn, almost every citizen of the Republic of Horn knew that in the Cernes War Zone, a brave air cavalry who had won the honorary title of Cernes Eagle was flying the glider of the Republic of Horn, and it was fruitful, allowing the demons of the demons to extricate their courage.

At this moment, Zhang Tie is definitely an idol-level figure.

Therefore, after Zhang Tie's second glider crashed, the Horn Republic, who learned about the situation, raised this matter to the level of national honor and sent a very powerful team of experts to Celness with equipment and machines to build a brand new glider for Zhang Tie.

In Colonel Haulson's words, the Eagle of Cernes was able to fly the glider of the Republic of Horn to fight in the sky for the guardians of the human race. It was the honor of the entire Republic of Horn.

After the expert team of the Republic of Horn came to Celness, they met Zhang Tie twice and had some communication with Zhang Tie because it was rainy season at that time, flying a glider in the sky often lost the power brought by the rising hot air flow, and the weather was also a great test for this unpowered flight device. When the experts of the Republic of Horn asked Zhang Tie what kind of glider they needed, Zhang Tie once said this to those experts.

"For me, I can use them to the extreme. In this regard, I think it will be difficult for you to make any breakthroughs for me, but the situation on the battlefield is very complicated. Sometimes, like in the past two months, due to heavy rain, when I cannot use these natural conditions, as a driver of the glider, I will be very passive on the battlefield, and driving a glider opportunity becomes a very dangerous thing. If possible, I hope that the glider I will drive in the future can have other sources of power when it cannot use the airflow and wind. Can it be allowed to fly freely in the sky like stepping on a bicycle? This is my requirement."

When Zhang Tie said this, he did not imagine whether the expert teams of the Horn Republic could do it. He just said what he wanted. If those people couldn't do it, he wouldn't lose anything to Zhang Tie. If he did it, it would definitely be a huge surprise for Zhang Tie, which means that he would be more free in the sky.

A few days after saying this, the expert team of the Horn Republic invited Zhang Tie to the glider base for two very comprehensive physical fitness tests.

Zhang Tie didn't know what driving a glider had to do with his physical fitness at the time, but he went there anyway. During the physical fitness test, he only remembered that members of the expert team of the Horn Republic looked at him with their eyes shining...

Since then, the expert team of the Horn Republic rarely contacted Zhang Tie in the glider base, and it was not until these two days. Zhang Tie received a notice that the new glider had been built and asked him to go and take a look.

On October 7, Horn Republic Glider Base...

Zhang Tie once again appeared in a hangar at the base. The last product, which took dozens of expert engineers and hundreds of technicians to spend more than a month, appeared in front of Zhang Tie's eyes.

The appearance of the glider looks a bit similar to that of the Wind Speecher Type 2. But the biggest difference between the entire glider and the Wind Speecher Type 2, or the biggest difference from all gliders is that it has a double-wing propeller on its head.

Zhang Tie sat into the cockpit and found that the layout and settings in the cockpit had also changed completely. The steering pedal under his feet was gone. Instead, it was replaced by a mechanism similar to the pedal of a bicycle. The elevator also changed a little, and there seemed to be a little more mechanism. The elevator of the former glider could only be pulled up or pressed. Zhang Tie discovered that in addition to being able to pull up and press, it could also rotate about 90 degrees to the left and right sides like a steering wheel of a car. Under the elevator, there was an additional push rod with unknown purpose.

In addition to these, the entire glider still retains a very obvious Zhang style - the seats of the glider are foldable, and there are still two on the left and right sides of the cockpit that allow him to "lift up" the inner concave handles with his hands, and the bilge cover of the glider cockpit can still slide.

Zhang Tie was excited to look around in the middle of the glider cockpit. In the end, he couldn't help but step on the pair of bicycle pedal-like things with his feet and stomp them on, trying to see what the effect would be.

For ordinary people, it may be very difficult to step on the pedal. If you have less strength, you may not be able to step on the pedal for many rounds with all your strength. But for Zhang Tie, the feeling of stepping on the pedal is really no more difficult than that of ordinary people riding a bicycle.

As soon as the pedal was stepped on, the two propellers at the glider's head suddenly rotated with a whistle. Zhang Tie's feet slowly accelerated, and the propellers at the glider's head rotated faster. Slowly, Zhang Tie found that the entire glider was moving and began to slowly slide towards the front on the ground.

While the glider was running in the hangar, Zhang Tie moved his heart and turned to the right while operating the rudder. When the glider was sliding, it also began to slide to the right. Zhang Tie operated the rudder and turned to the left, and the glider began to turn to the left.

Zhang Tie was very excited. He finally understood the thoughts of the experts of the Horn Republic. Since the propeller could push the glider on the ground and let the glider move forward, then in the sky, this thrust also exists, and this is the extra power this glider can obtain in the sky.

Zhang Tie jumped out of the glider's posture compartment and asked the experts and engineers of the Horn Republic happily, "How did you do it?"

"What you said to us at that time gave us a lot of inspiration and inspiration. After careful consideration, we borrowed the design ideas of early human aircraft before the Cataclysm, and used a variable speed gear set and chain to transfer the power generated when you step on the pedal to the propeller in front. This glider has the ability of early human aircraft before the Cataclysm, which allows the glider to gain additional power when it cannot use upward airflow and wind."

"Thank you, you are so awesome!"

"This kind of glider is specially designed and manufactured for you. If it is replaced by someone else, such a design may not be of great use to them, because their strength and physical strength may not support such flights for too long. Do you still remember the test we did on you before? We found that the strength on your legs is very strong, and your physical strength and endurance are also extraordinary. If the power on your legs is converted into the power of the machine, your legs are probably equivalent to a good performance of 20 horsepower engine. It is precisely because of this that we have this design idea."

"Ah, is my foot's power equivalent to the power of a 20 horsepower engine? How much is that?"

"On ordinary people who have not ignited the bright spot generally can burst out within one minute only one horsepower. Within ten minutes, the maximum power that ordinary people can burst out is only about half a horsepower. The so-called 20 horsepower engine power. Generally speaking, it is equivalent to when you are lying down, your feet are pressed against a 1500 kilogram thing, and within one second, you can raise that thing one meter high in one second, and you can continue to repeat the process. This is not a momentary explosive force, but a continuous and repeated force. In terms of explosive force, many people can easily exceed 1500 kilograms, but if you want to make a person's feet repeat the process of 1500 kilograms in one second with their feet within half an hour or an hour, there will be very few people who can do it."

"Oh. So that's it!" Zhang Tie suddenly realized, but he didn't expect that his feet could be comparable to a 20-horsepower engine at this moment. This made him a little proud. Not everyone has such ability.

"Can I stomp this pedal now allow the glider to fly directly into the sky?"

"Although we have set up an assistant device to drive the glider to run with a pedal, it will require very high strength. But if you get to the sky, the situation will be different. As long as your physical strength can support it and keep the propeller at a minimum speed of more than 800 rpm, it can provide the glider with endless power, so that the glider can still have very good flight and handling performance without relying on climatic conditions. We think that this glider can no longer be called a glider, but should be called a human-powered aircraft!"

"Human-powered aircraft, this name is very interesting!" Zhang Tie smiled. Thinking of the former Aircraft Brotherhood, Zhang Tie felt that something like an airplane seemed to be too destined to be with him. He didn't expect that he could really fly the plane now.

"Can I try it now?"

"certainly!"

"I still don't understand what the push rod under this elevator is for. I see a few numbers written here, which are 50, 30, 15 and 5, and there is also an empty and a ground. What does this mean?"

"This is a variable speed transmission rod. It can adjust the speed ratio between the power pedal and the propeller and the power output direction of the pedal under your feet. There are two power output directions and four gears. Among those four gears, the highest gear means that you step on a pedal and can make the propeller of this manpower aircraft turn 50 turns, and the lower gear is 30 turns, and so on. The higher the speed ratio, the higher the force you need to step on a slim, it can flexibly adjust according to your physical strength. The air and ground represent the power output direction of the pedal. The air corresponds to the power to the propeller in front when you step on the pedal and provide the power of the glider in the air. The ground means that when you step on the pedal, the power will be transmitted to the ground wheel on the glider, just like riding a bicycle, letting the glider run on the ground..."

...

A few minutes later, after Zhang Tie thoroughly understood how the thing called the human-powered aircraft was controlled, the human-powered aircraft was pushed to the runway.

Zhang Tie sat back in the cockpit, pushed the gear lever to the ground without thinking, and then he started to step on the pedal with force under his feet...

There was no tractor towing, and Zhang Tie did not lift the glider to run. Zhang Tie just stepped on the pedal like a bicycle. The glider was on the runway faster and faster, and finally left the runway and flew into the sky...

After flying into the sky, Zhang Tie pushed the gear to the position 50 below the empty character, and then began to quickly step on the starting pedal, and the propeller in front quickly turned...

Finally, without relying on the wind and upward airflow, Zhang Tie relied on the power of his feet to let the human-powered plane fly freely in the sky like an airplane.

...

The feeling of flying this manpowered plane in the air is really hard to describe for Zhang Tie. If he was driving an ordinary glider, he still needed to pay attention to the direction of wind and airflow movement at any time. When driving this manpowered plane, Zhang Tie felt that he was really free and completely free in the sky.

In Zhang Tie's feeling, this thing cannot be called an airplane, but a sky bicycle. As long as the body has strength and keeps stepping on the pedal under your feet, this human-powered aircraft can fly freely in the sky.

When flying freely, when encountering an upward airflow that can be used, Zhang Tie can drive it as a glider as he wishes, so that he can rest and recover his strength. When there is no airflow available, Zhang Tie stepped on it with his feet, so that he can still fly as much as he wants, without considering the influence of the weather.

If Zhang Tie stepped on the starting pedal while using airflow to let the propeller work together, Zhang Tie found that his flight speed could be almost 20 to 30% faster.

With such a manpowered aircraft, Zhang Tie is even more confident about the mission he promised to take over...

...

PS: On Earth, human-powered aircraft driven by human power can fly more than 100 kilometers in the 1980s. Have you ever thought that one day the human-powered aircraft competition can become an Olympic event? Haha...
Chapter completed!