Since Zhang Tie was chased and killed by the Wing Demon the last time he drove the glider, so that he had to drive the glider into the water to escape, the engineers of the Horn Republic Glider Base have been busy helping Zhang Tie build a new glider.

In order to build a new glider for Zhang Tie, the head of the base, Colonel Holson, also personally contacted the country, and the Republic of Hohn finally sent a team of experts to Cernes with equipment and tools from several train cars.

Zhang Tie didn't know at the time, when he knew, the expert team of the Hoen Republic had arrived, and Zhang Tie was still a little embarrassed about the revival of the Hoen Republic, and after the explanation of the base chief Colonel Holson, Zhang Tie knew that his current fame was actually famous in the Hoen Republic.

After the news of his and this glider base reached the Republic of Horn, and after the domestic media of the Republic of Horn, almost every citizen of the Republic of Horn knew that in the Cernes War Zone, there was a brave air cavalry who had won the honorary title of Eagle of Cernes who was driving the glider of the Republic of Horn to fight, and it was fruitful, so that the winged demons of the demon race were afraid of it.

At this moment, in the Republic of Hohn, Zhang Tie is definitely an idol-level figure.

Therefore, after Zhang Tie's second glider crashed, the Republic of Hoane, who learned of the situation, raised the matter to the height of national honor and sent a very strong team of experts to Cernes with equipment and aircraft to build a brand new glider for Zhang Tie.

In the words of Colonel Holson, it is the honor of the entire Republic of Horn that the Eagle of Cernes can fly the glider of the Republic of Horn to fight in the sky for the guardian terrans.

At that time, after the expert team of the Republic of Hhorn came to Cernes, they met with Zhang Tie twice and had some communication with Zhang Tie, because it was in the rainy season at that time, and driving a glider in the sky often lost the power brought by the updraft, and the weather was also a great test for this kind of unpowered flying device. Zhang Tie once said such a thing to those experts.

"The wind and the currents in the sky have allowed me to use them to the extreme, and in this regard, I think it will be difficult for you to help me do anything more, but the situation on the battlefield is very complicated, and sometimes, like the last two months, because of heavy rains. When I can't take advantage of these natural conditions, as a glider pilot, I will be very passive on the battlefield, and flying a glider will become a very dangerous thing, and if I can, I hope that the glider I will fly in the future will have other sources of power when I can't use the air currents and wind. Can I let the glider fly freely in the sky like a bicycle, that's what I'm asking for. ”

When Zhang Tie said this, he didn't imagine whether the expert team in the Republic of Hhorn 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. That was definitely a huge surprise for Zhang Tie, which meant that he would be more free in the sky.

A few days after saying this, the team of experts from the Republic of Hhorn asked Zhang Tie to go to the glider base to do two very comprehensive physical fitness tests.

Zhang Tie didn't know what flying the glider had to do with his physical fitness, but he went anyway, and during the physical fitness test, he only remembered that the members of the expert team of the Republic of Hhorn looked at him with bright eyes......

Since then, the team of experts from the Republic of Hohan has rarely contacted Zhang Tie in the glider base until the past two days. Zhang Tiecai received a notice that a new glider had been made and asked him to take a look.

On January 7o, the Horn Republic Glider Base ......

Zhang Tie once again appeared in a hangar at the base, and the last product, which cost dozens of expert engineers and hundreds of technicians in the Republic of Hoen for more than a month, appeared in front of Zhang Tie's eyes.

The glider looked somewhat similar in appearance to the Windtalker II. But the biggest difference between the whole glider and the Windtalker II, or the biggest difference from all gliders, is that it has an extra biplane propeller on its head.

Zhang Tie sat in the cockpit. Now the layout and settings in the cockpit have also completely changed, the steering pedal under the foot is gone, replaced by a mechanism similar to the bicycle pedal, the elevator has also changed a little, it seems to be a little more mechanism, the previous glider elevator can only be pulled up or pressed, and now the elevator rudder, Zhang Tiexian, in addition to being able to pull up and press, can actually be like the steering wheel of a car, can turn about 90 degrees to the left and right, under the elevator, There is also an additional putter of unknown purpose.

In addition to these, the whole glider still retains a very obvious Zhang style - the seats of the glider are foldable, there are still two recessed handles on the left and right sides of the cockpit that allow him to "lift" the glider by hand, and the bilge cover of the glider cockpit is still sliding.

Zhang Tie was a little excited to look at the east and west of the cockpit of the glider, and finally couldn't help but step on the pair of bicycle pedal-like things with his feet, and pedaled them, wanting to see what effect there was.

For ordinary people, it may be very difficult to step on that pedal, and a little less strength may not be able to pedal how many times to pedal it, but for Zhang Tie, the feeling of stepping on that pedal is really not much more difficult than ordinary people riding a bicycle.

As soon as the pedal was stepped on, the two propellers at the nose of the glider suddenly spun up, Zhang Tie's feet slowly accelerated, and the propeller at the nose of the glider rotated faster.

When the glider was running in the hangar, Zhang Tie's heart moved, and he operated the rudder to turn to the right, and the glider also began to slide to the right when it slid.

Zhang Tie was very excited, he finally understood the thoughts of those experts in the Republic of Horn, since the propeller can push the glider on the ground to make the glider forward, then, in the sky, this thrust is also zài, this is the extra power that this glider can get in the sky.

Zhang Tie jumped out of the glider's position cabin. Happily asked the experts and engineers in the Republic of Horn, "How did you do it?" ”

"What you said to us at that time gave us a lot of inspiration, and after careful consideration, we borrowed the design ideas of early human airplanes before the cataclysm, and used a variable gear set and chain to transfer the power generated when you step on the pedals under your feet to the propellers in front. Giving the glider the capabilities of an early pre-cataclysmic vehicle would allow it to gain additional power when it was unable to rely on updrafts and wind. ”

"Thank you, you're amazing!"

"Such a glider, designed and built specifically for you, if replaced by someone else. Such a design may not be of much use to them, because their strength and body may not be able to support such a flight for too long, remember the previous test we did with you, we now, the strength of your legs is very strong, and your body and endurance are also extraordinary, if you convert the power on your legs into the power of the machine. Your legs are roughly equivalent to the motivation of a good 2o horsepower, and that's why we came up with this design idea. ”

"Ah, is the power of my feet equivalent to the power of a 2o horsepower motive, how much is that?"

"The maximum power that ordinary people who have not ignited the bright point can generally burst in one minute is only one horsepower, and within ten minutes, the maximum power that ordinary people can burst out is only about half a horsepower, the power of the so-called 2o horsepower. Roughly speaking, it is equivalent to lying down, your feet against a 15oo kilogram object, and in a second, you can lift that object one meter high, and you can repeat the process over and over again. It's not an instantaneous blast, it's a constant and repetitive force. When it comes to explosive power, many people can light more than 15oo kilograms of strength on their feet, but if you want a person to repeat the process of putting 15oo kilograms of things in one second in half an hour or an hour, there are very few people who can do it. ”

"Oh. So that's it! Zhang Tie suddenly realized, he didn't expect that his feet at the moment could be comparable to the motivation of a 2o horsepower, which made him a little proud, such an ability is not available to everyone.

"Can I press this pedal now to make the glider fly straight into the sky?"

"Although we have set up an assistant device to drive the glider to run with pedals, but the requirements for your strength will be very high, but if you go to the sky, the situation is different, as long as your body can support it, so that the propeller can maintain a minimum rotation of more than 8oo revolutions per minute, it can provide an endless stream of power for this glider, so that this glider still has very good flight and handling performance without relying on climatic conditions, we think, this glider has reached the present, It can no longer be called a glider, but a human-powered aircraft! ”

"Human-powered aircraft, that's a very interesting name!" Zhang Tie laughed, thinking of the former Aircraft Brotherhood, Zhang Tie felt that things like airplanes seemed to be too related to him, but he didn't expect that he could really fly a plane now.

"Can I try it now?"

"Of course!"

"I still don't understand a little bit, what is the push rod under this elevator for, I see a few numbers are written here, it's 5o, 3o, 15 and 5, and there's an empty and a ground, what does that mean?"

"This is the variable transmission lever, it can adjust the rotation 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, in those four gears, the highest gear, on behalf of you step on a circle of pedals can make the propeller of this human-powered aircraft rotate 5o circles, the next gear is 3o circles, and so on, the higher the rotation ratio, the higher the force you need to step on a circle, it can be flexibly adjusted according to your body situation, The empty word and the ground represent the power output direction of the pedal, and the empty word corresponds to the power transmitted to the propeller in front of you when you step on the pedal, providing the power of the glider in the air, and the ground word means that when you step on the pedal, the power will be transmitted to the landing wheel on the glider, just like riding a bicycle, so that the glider can run on the ground......"

……

A few minutes later, after Zhang Tie thoroughly understood how the thing known as a human-powered plane was controlled, the human-powered plane was pushed onto the runway.

Zhang Tie sat back in the cockpit, pushed the lever to the position of the ground without thinking about it, and then began to step on the pedal with force under his feet......

There was no tractor to tow, and Zhang Tie did not lift the glider to run, Zhang Tie just stepped on the pedal like a bicycle, and the glider was on the runway faster and faster, 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 5o position below the empty word, and then began to press the starting pedal quickly, and the propeller in front of him quickly rotated......

In the end, without the help of wind and updrafts, Zhang Tie relied on the strength of his feet to make the human-powered plane really fly freely in the sky like an airplane.

……

The feeling of driving this human-powered plane in the air is really indescribable for Zhang Tie, if he is driving an ordinary glider, he also needs to pay attention to the direction of movement of the wind and air currents at any time, and driving this human-powered aircraft, Zhang Tie feels that he is really free, completely free in the sky.

In Zhang Tie's feeling, this thing can't be called an airplane, but should be called a sky bicycle, as long as the body still has strength, as long as the pedals under the feet are constantly stepped, this human-powered plane can fly freely in the sky.

When flying freely, when encountering an updraft that can be used, Zhang Tie can fly it as a glider as he likes, so that he can take a break and recover his body, and when there is no air flow to use, Zhang Tie can use his feet to move again, and he can still let it fly as much as he wants, without considering the influence of the weather.

If Zhang Tie stepped on the starting pedal when flying with the air current, and let the propellers work together, Zhang Tiexian, his flight degree could be almost 20 to 30 percent faster.

With such a human-powered aircraft, Zhang Tie is even more confident about the task he agreed to take......

……

PS sentence: On the earth, human-powered human-powered human-powered aircraft can fly more than 100 kilometers at the farthest in the eighties of the last century. Ha ha......

The National Day is here, the whole country celebrates, and in the last few hours, everyone should hurry up and vote for this month's monthly ticket......

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