The emperor cried, the ministers didn't pretend to touch a few tears, Li Lizhi obviously cried too hard, fainted several times, because she still had a problem with panic and shortness of breath, Yang Lin didn't dare to let her stay here longer, and carried it off the eighteen-story Tongtian Futu Pagoda in one fell swoop, okay, I originally wanted to build up and pit Li Shimin's children and grandchildren, but now I pit myself first.

"Beauty! You're really going to lose weight. Li Liqing, who had recovered slightly, fainted again when she heard this.

Since the burial of Empress Changsun, the court has finally entered a period of calm, Li Shimin has devoted himself to the railway, there are the emperor's day and night supervisors, and hundreds of thousands of craftsmen work day and night, the progress of the railway erection is not fast, and the production speed of the locomotive in the prison is not slow, anyway, it is just a large steam engine, there is not much difficulty in technology, even if there is, Guyue Daowen can only be solved by consulting with Yanglin.

Leisurely days will always pass quickly, in a blink of an eye, when the peach blossoms in the hibiscus garden are in full bloom, the technology maniac hidden deep in the ground day and night After more than three months of hard work, there has been a major breakthrough, the jet propulsion has gone through more than a thousand tests, more and more mature, and it will soon be applied to large aircraft. The steam-powered propeller plane theoretically met all the requirements for flight, as long as he was filled with gasoline fuel, he could make the first test flight, however, no one had any experience in flying this thing, and in the end Yang Lin had to go on his own, at least in later life he had a helicopter pilot's license, although that was completely different from a glider. Another aspect is that he has a lot of experience in skydiving, and even if something goes wrong with the plane, he is sure that he will survive.

"I still need a math good for me to make flight records, who's going to do it?" Yang Lin put on a flight suit that he hadn't worn for many years, and stepped into the driver's seat of the plane with a large parachute bag on his back.

There are two seats on the double-wing propeller aircraft, although it is not equipped with weapons now, but his design prototype is a fighter before World War II, the person in front is responsible for driving, and the person in the back can be responsible for dropping bombs and loading, and there are no functions such as sealing air conditioning, that is, it is a little higher than the load capacity and continuous navigation ability of the three-wing motorcycle aircraft in the park in later generations, of course, because the speed is the highest in this era, the most important thing to ride this thing is the psychological quality.

"I'll come."

Many voices sounded in the crowd, and Yang Lin finally ordered the older Ji Xuan, nothing else, it is better to die an old guy than a young man.

"Boom."

The petals in the 100-acre peach orchard are flying, a crack about ten meters wide slowly unfolds, and a runway more than 1,000 meters long obliquely thorns extend from the depths of the ground to the exit of the peach orchard, because it is from the bottom to the top, there is still a slope of about 30 degrees.

"Alas, if it weren't for the open test, it might be safer for us to find a flat runway to take off, but the exit is Qujiang Pool, even if we can't fly up, we just go to the pool to take a cold shower." Yang Lin was optimistic and funny, and Ji Xuan was seriously recording all the details to be paid attention to when flying.

"After the successful take-off, you remember to turn on the indicator light according to the requirements of the horse, let's take off uphill and land downhill, more than three percent higher than the difficulty of taking off and landing on the flat ground, the speed measurement and bungee rope of the second runway must be ready when landing, once the taxiing is too fast, you must pull up the bungee rope, otherwise the plane hits the wall, and I and the pony will die."

"Uh, cough, old Ji, let's talk about something auspicious, I'm not sure I won't go in person." Yang Lin was speechless, and after the staff checked that there was no problem with the external environment of the aircraft, Yang Lin finally turned on the engine.

"At two o'clock in the morning on March 18, the sixteenth year of Zhenguan, the first test flight of the double-wing propeller aircraft began, the pilot Yang Lin, the co-pilot Ji Xuan of data recording, and Wang Jin, the person in charge of the ground guidance instructions, ・・・・・・"

In Ji Xuan's anxious writing and painting, the first plane in the real sense of the Tang Dynasty rushed onto the runway quickly.

"Your Highness, Your Highness, there seems to be a sound."

In Zhaoling, the two bodies were awakened by the sound of the aircraft engine after several clouds and rains, and Li Chengqian, who was dazed and overindulged, sat up on the soft couch after hearing the call of satisfaction, hurriedly pulled a piece of clothing and put it on his body, and ran towards the Tongtian Futu Tower, which was followed by satisfaction.

"Look, there is a crack in the center of the peach orchard, I know, I know, all the secrets of heaven are hidden under this peach orchard・・・・・・"

While shouting excitedly, Li Chengqian ran to a higher level, due to the broken limb, he didn't run fast, Xiangxin supported him on the side, the light at night was too dim, he couldn't see the specific situation in the peach orchard at all, but he knew that this was the result of his months of waiting here.

The roar was even louder, even Li Chengqian, who was hundreds of meters away, could faintly hear it, he had already determined that it was the sound of the engine, and after a while, a big bird-like thing ran out of the black crack, the speed was extremely fast, from Li Chengqian's point of view, he could only vaguely see the shape of the thing, the distance was still too far, and the light was not good, he was not even sure that the roar was made by this big bird.

"The speed has been raised to the limit, pulling up the ・・・・・・"

"Oh, no, the lifting failed, it was too difficult to take off uphill, there were still two hundred meters left in the runway, and it was ・・・・・・ to pull up again" "Still a failure, Lao Ji, it seems that we are going to Qujiang Pool to take a cold shower." "The last twenty meters of the distance is raised again・・・・・・・" "Oh, buy karma. “

The plane rushed out of the runway, directly to the water surface of Qujiang Pond, Yang Lin pulled the pull wrench to the extreme, seeing that the plane was about to hit the water, a miracle appeared, the plane under the slider pulled out three waterlines on the water surface immediately out of the water, the double-wing aircraft quickly rose into the air with an amplitude of more than 30 degrees. "Yo, we succeeded."

The plane took off smoothly under the control of Yang Lin, and after circling around Qujiang Pond, it launched an impact on the higher clouds, and Ji Xuan and Yang Lin, who were sweating, laughed excitedly at this moment. "Lao Ji, now you should shake up the landing gear, and then calculate the fuel consumption pressure gauge and calculate the flight altitude ・・・・・・"

After coming back to his senses, Yang Lin issued a series of statistical orders, the propeller aircraft as the aircraft with the lowest energy consumption, especially after flying at an altitude of 3,000 meters, the fuel consumption is relatively small, and the first flight to calculate his safe range and maximum range, as well as the maximum flight altitude and a series of data.

And on the Futu Tower, two half-naked men are looking at the sky in a daze, the big bird has flown into the sky, much faster than the speed of the Tianshen, and it is more flexible, this must be the new masterpiece of the Heavenly Bestower Ma Yanglin, Li Chengqian, who has mastered the first-hand information, is in a complicated mood, how should he use this first-hand information?

After standing next to the guardrail of the Tongtian Futu Tower for an hour, the lights shining out of the peach orchard made Li Chengqian come back to his senses, this big bird is the big killer weapon that he can defeat Li Shimin, but how to turn this thing into his own, it is very difficult, it seems that he has to find Changsun Wuji to discuss it anew, he is extremely tired of life here, and he is extremely tired of Changsun Wuji's patience strategy.

On both sides of the runway, a light was lit every few meters, and the road surface of the runway was illuminated cleanly, and after a while, the big bird flew back under Li Chengqian's gaze, and the funny thing is that he seemed to be in the sky and went straight to the Tongtian Futu Tower where Li Chengqian was, and Li Chengqian, who didn't know the situation, didn't know that the plane needed a physical terminal tower to determine the landing location when the plane landed without radar, and thought that Yanglin had discovered him and wanted to kill people!

However, the plane made a detour around the Futu Pagoda and ignored him, and slowly slid towards the bright runway in the peach grove of the Hibiscus Garden. "Landing gear, landing gear, Lao Ji, is it fully deployed, is it fixed, is it ・・・・・・・" "Record the slip data according to the road signs on the runway, oh buy karma, the downhill glide speed is too fast, bungee cord, bungee cord, quickly stop the plane・・・・・・"

In a hurry, the plane finally landed safely, who called Yanglin himself an unprofessional pilot! "Let's report the flight data!" Taking off his flying suit, Yang Lin summoned a meeting of all the technicians, and at this time, the crack in the center of the peach orchard was slowly closed in the stunned eyes of Li Chengqian and Xiangxin. "The 30-degree elevation angle runway take-off failed to pull up three times, which proves that our aircraft can not take off on the runway with a slope of more than 30 degrees, and finally can take off successfully, which is a hole that occupies a few meters of suspended height in Qujiangchi, and we can not take such a risk in the future, the 30-degree landslide runway when landing can not form resistance at all, and the plane is completely dependent on the strong pull of the elastic rope to stop, which also proves that our runway is not good.

The maximum speed of the aircraft is about 420 kilometers every hour, that is, about 210 kilometers per hour, the maximum continuous navigation time is about 8 hours, and the safe navigation time is only 6 hours, that is, about three hours, from which it can be concluded that its safe one-way flight distance is about 1,200 kilometers, and the round-trip flight range is about 600 kilometers. In the future, if the weapon is fully loaded, the sailing range will be reduced accordingly.

So far, the maximum flight altitude has not been measured, according to the previous data of the Tianshen, there will be no icing on the wings within five thousand meters, so there is no problem for our aircraft to fly within five thousand meters of airspace, if we can better solve the cabin sealing, and then two or three thousand can also be achieved. “

Yang Lin listened to Ji Xuan's report, and compared this guy with the aircraft of later generations, the gap is not a star and a half, in terms of range alone, it is about ten times the distance, and there is a general flight altitude of 30,000 feet for passenger aircraft in later generations, which is not something that can be achieved by the aircraft he built, maybe the second-generation jet aircraft developed in the future can amplify the data a little. (To be continued.) )