Bright Sword starts with the grenade flat.

Chapter 121 Liu Xiu ascended to heaven

After hearing Liu Xiu's words, Liu Qin was worried about what would happen if Liu Xiu accidentally fell off during the test drive, but this wooden airplane also took him several months of hard work to make. It would be unreasonable not to try it in the sky.

As for the runway for the plane to take off, Liu Qin had already thought about it. There was a straight road just one kilometer away from the arsenal, which could be used as a runway for the plane to take off and land.

Although this aircraft is more than five meters long and has a wingspan of six meters, it is not very heavy because it is made of wood. It is estimated to only weigh three to four hundred pounds. Therefore, it relies on Liu Xiu, Liu Qin and the arsenal. The factory director dragged the plane to the road.

At this time, many people in the arsenal naturally came out to watch, because they had heard a long time ago that Liu Qinwo was manufacturing airplanes in a house, but they were not able to see it with their own eyes, and now they were lucky enough to see his true appearance. .

Naturally, people gathered around to watch, but they were all kicked away by the director of the arsenal on the grounds of safety. After all, it was the first test flight. Liu Qin, the manufacturer, was not sure, let alone the arsenal. The director of the factory.

Only after pushing the plane onto the road did Liu Xiu remember how to start the plane's engine!

However, Liu Xiu also learned as he explained that Liu Qin also moved the electric starting method of the motorcycle engine to the aircraft, so as long as he presses two buttons, he can start the two motorcycle engines of the aircraft happily and easily!

Liu Xiu is not surprised that overseas motorcycles have electric starts. After all, since Cadillac engineers invented the electric start in 1912, this method of starting has become popular around the world in less than ten years. After all, there are many cases of people being killed by the crank start. .

This is especially true for vehicles during the war. Others are fighting, but you are still cranking the engine, so it is not surprising that motorcycles have electric starts.

After Liu Qin taught Liu Xiu how to start it, he also told Liu Xiu that the two handbrake-like things on the left side of the seat were actually the accelerator, and the lever on the right side was the brake for the aircraft tires.

But just when Liu Xiu was about to start the engine and start the test flight, Liu Qin suddenly stopped Liu Xiu's movement and asked Liu Xiu to wait. He had forgotten to give Liu Xiu something important. After speaking, Liu Qin did not wait for Liu Xiu. Xiu ran towards the arsenal as soon as he reacted.

After waiting for about ten minutes, Liu Qin came over with something. When Liu Xiu saw the thing in Liu Qin's hand, he understood what it was. Yes, the thing Liu Qing was holding was a windproof eye mask.

You must know that human eyes are very fragile. A little dust can make it difficult to open the eyes, and the wind at high speed is also one of the eye killers. When the speed reaches 40 kilometers per hour, the eyes will shed tears. When the speed reaches 70 kilometers and we face the wind, the wind can blow our eyes blind.

Therefore, pilots from World War I to World War II all wore eye masks. As for modern supersonic fighters, they already have fully enclosed cockpits. After all, at supersonic speeds, not to mention the eyes, even the mouth may be blown by the wind. It was torn, so Liu Xiu simply took Liu Qin's windproof goggles and put them on.

Due to the material, Liu Qin's windproof eye mask was not very finely made. The wooden eye frame was inlaid with two pieces of glass, and then the cloth strips were passed through the eye frame. This was the fixing device of the wooden eye mask. Liu Xiu put it on After putting on the windshield, the engine was started.

As Liu Xiu pulled the throttles of the two engines, the wooden propellers driven by the engines began to rotate faster and faster. The strong wind brought by them also caused the entire aircraft to start running forward.

After taxiing for more than 300 meters, Liu Xiu felt that the wheels of the plane had left the ground. At this time, Liu Xiu felt that the speed of the plane should have reached 80 kilometers per hour.

So Liu Xiu pulled the control lever back slightly. As soon as Liu Xiu pulled it, the nose of the plane immediately tilted up a lot. At the same time, the height of the plane also climbed a lot. In the blink of an eye, it had already exceeded reached a height of fifty meters.

At such a height, if the plane disintegrated in the air, Liu Xiu would be seriously injured if not dead. After seeing that it had reached such an altitude, Liu Xiu immediately retracted the flaps that had been lowered by the aircraft. With the retraction of the flaps, the resistance of the aircraft's wings was also reduced a lot, and the speed of the aircraft naturally increased a lot immediately. .

The increase in speed allowed the plane to climb to an altitude of four to five hundred meters in less than a moment. When Liu Xiu looked down, the original dirt road had turned into a line, and the cheap man standing on the side of the road Dad Liu Qinze has become a little black spot that is not much better than an ant.

To be honest, it was actually Liu Xiu's first time to fly a plane, and it was also his first time to make a plane. That's right, even before time travel, Liu Xiu had never made a plane, let alone flying a plane.

After flying into the sky, Liu Xiu also tightened the throttle slightly to prevent the plane from continuing to accelerate. Therefore, Liu Xiu's mouth was already slightly deformed by the oncoming wind.

There's no way anyone could have prevented this plane from having a windshield on the front! Therefore, Liu Xiu could only face the high-speed airflow of the aircraft.

According to Liu Xiu's feeling, the wind speed has now exceeded 200 kilometers per hour and has almost reached 300 kilometers per hour.

At this time, Liu Xiu hurriedly realized that the strong wind pressure made it difficult for Liu Xiu to breathe.

It was precisely because of this that Liu Xiucai reduced the accelerator and did not continue to increase the accelerator. After all, in addition to being unable to breathe without the windshield, there was also the wooden body that made Liu Xiu worried about its strength.

You must know that the aircraft during World War I were made of wood, but the speed of these wooden aircraft did not exceed 200 kilometers per hour. In addition to the immature engine technology and insufficient power-to-weight ratio, the more important thing was that they were made of wood. The fuselage results in insufficient strength of the fuselage, which limits the further increase of its speed.

After controlling the speed within 200 kilometers per hour, Liu Xiu continued to test its control performance in the sky of 400 to 500 meters, such as turning, diving, pulling up and other actions. Of course, even pulling up Liu Xiu did not The height you dare to fly is only about a thousand meters!

After all, this motorcycle engine is not equipped with a turbocharger. Flying too high will inevitably weaken the power, and if it is too high, Liu Xiu himself may have high reflex or something.

As for the left and right roll of the aircraft, Liu Xiu did not dare to do this action, so he swung the aircraft left and right twice to test that the ailerons were effective and then stopped the action.

After completing all the test movements, Liu Xiu also began to prepare for landing. Compared with taking off, landing is actually more difficult for a plane.

Don't worry when the plane takes off. Just pull the throttle and run forward. When the speed reaches the speed, the plane will naturally take off. Landing is not easy. The speed must be accurately controlled within a certain range. Just fine.

(End of this chapter)