After the completion of the pneumatic aircraft, of course, the flight test was carried out in the small world for the first time, and of course there was no problem in controlling this kind of equipment, and it could even be directly driven by divine thoughts.

Originally, the controller of the pneumatic thruster needed to be manually controlled, but because of the convenient ability of divine mind to control things, the controller was directly integrated into the device, and the thrust could be adjusted by simply adjusting the controller of the thruster with divine sense.

Since I have been playing with personal aircraft for several years, I have long been familiar with the car, but it only took less than two minutes to master the pneumatic thruster control method.

Then he came to the roof with his new equipment, and stood on the pneumatic thruster that looked like a big shoe cover, and the buckle instantly ejected and buckled onto the shoes of the Northern Stygian suit.

Although Anna was very curious about what the adults were doing with great interest, she didn't ask much, just stood far away and watched Zhang Tiancheng test the new equipment.

After checking that the device had been completely buckled, there was no concern, and the divine sense controlled the speed control device and instantly adjusted to the maximum output mode.

A huge suction force suddenly appeared in the gaps around the oversized shoe covers, and a large amount of air was sucked in and sprayed out from under the soles of the feet, and the person quickly rose into the air.

The speed of the climb is quite fast, and it even feels like the body has nearly doubled the gravity, which is confirmed by a set of data emerging from the AR glasses, the acceleration is as high as 9.3 m/s, but the speed soars to 100 kilometers per hour in three seconds, and the acceleration time lasts for more than ten seconds before it stops, and the final climb speed is about 560 kilometers per hour.

However, it did not continue to climb upwards, because the altitude in the small world is only 5 kilometers, and it is not possible to try how high the thrusters can fly.

Then he turned to the east and flew away, of course, limited by the small world, which is a little bigger, so he also adjusted the angle slightly during the technical flight, and circled the flight test in an area with a diameter of ten kilometers.

And more and more detection data information is also appearing on the AR eye:

The fastest vertical climb accelerates 9.3 m/s, accelerates from stationary to 100 km/h in about 3 seconds, and the fastest climb speed is 560 km/h, with an unknown limit height.

The fastest acceleration in the horizontal direction is 14 m/s, and it only takes 2 seconds to accelerate from a standstill to a speed of 100 kilometers per hour, and the maximum flight speed can reach 850 kilometers per hour.

The noise level is 65 decibels, which is equivalent to a 200-watt exhaust fan.

The temperature of the vent is exactly the same as the air around it.

The maximum distraction speed is 850 kilometers per hour, and the time can be maintained for 10 minutes.

The cruising speed is 430 kilometers per hour, which has lasted for 1:20 minutes, and the power is still strong.

……

The cruise flight at 430 kilometers per hour has lasted for more than an hour, and there is no indication that the energy efficiency ratio continues to decay, according to the divine sense, the cosmic radiation energy absorbed by the Mithril circuit has reached a state of equilibrium with consumption, so this speed should be able to be maintained for a long time.

Of course, the rules of different worlds may be a little different, but it is almost certain that this is also the case in the real world, because the current small world should overlap with the real world universe, which can be determined from the detection of many cosmic radiation data from some detection equipment, which is completely consistent with the real universe.

Trying to adjust the controller to half of the power output, the speed was quickly reduced to 200 kilometers per hour, but the divine sense could clearly perceive that half of the radiant energy absorbed by the Mithril circuit was really stored.

Judging by the energy storage, the full energy of the Mithril circuit can be restored in half an hour, and after recovery, of course, the speed can soar to the limit state of 850 kilometers again, and it is certain that if the thruster is completely turned off, this recovery speed should be doubled......

At the end of the two-hour flight test, the man returned to the roof and landed slowly, feeling quite good, but there was no one to share the joy.

There was only one staunch believer at the scene, Anna, and for this girl, Zhang Tiancheng was already flying around, which was really nothing unusual.

“…… Adults are flying a little faster than before. Seeing Zhang Tiancheng landing, Anna also greeted him and said something without words.

"It's not just a little faster, it's four times faster." Zhang Tiancheng, who was in a good mood, corrected the other party's words by the way.

Because the small world is too small to fully detect the data of the aircraft, he left the small world in a hurry after completing the preliminary test.

Back in the secret room, I looked at the alarm clock on the wall, the time was still 3 o'clock in the morning, just in time to take advantage of the cover of the late night, to continue to test the progress of the pneumatic thruster.

He put away the portal casually, so as not to wake up the sleeping Xiao En, he quietly left the house and came to a clearing more than two hundred meters away, where he activated the pneumatic thruster again.

The data was almost the same as what was detected in the small world, and it climbed up at an extremely high speed, but it rushed to an altitude of 20,000 meters in a few minutes, and then the climb also stalled.

It's not that Zhang Tiancheng's body can't bear it, but as the air becomes thinner and thinner, the energy efficiency of the propeller also decays rapidly, and after rushing to an altitude of more than 20,000 meters, it is no longer possible to continue to increase the altitude.

However, the impact of this thin air on the body is indeed big enough, even if the physical fitness is more than ten times stronger than ordinary people, it is still uncomfortable by the biting cold, and even because the air pressure is too low, the brain is a little buzzing.

I didn't dare to stay at high altitude for too long, so I turned around and went down, and when the speed quickly decreased to more than 2,000 meters, I still flew around to further test the thruster data.

Of course, it can also be said to exercise the ability to control, and I also tried to bless the ability of the gods to control things, but it can increase the low-speed flight state of half the power to 240 kilometers per hour.

It is assisted by a special radar stealth chip, and the movement of the pneumatic thruster is extremely small, plus the cover of the night, so there is no need to worry about being discovered at all.

The flight exercise lasted for more than an hour, until the eastern sky appeared white, and the acceptance of the new equipment was finally over.

In general, this pneumatic propulsion device, although it has been reduced to an unqualified semi-finished product by the system, but the practicability is very high, and the life-saving ability of this device can be more than doubled.

Sneaked back to the room and quietly climbed into bed, maybe it was because he had been in the air for too long, and the cold on his body had not completely subsided, and his hand had just reached over to hug his sister, and suddenly scared Xiao En, who was asleep, screamed.

“…… Why did my brother go out in the middle of the night to steal people? ”

"Uh, how could it be, I just went to the bathroom and took a cold shower."

"It's hot to sleep with me?"

"It's not hot, I can't sleep with such a beautiful woman in my arms as you, but I don't want to tire you, so I'm going to cool down."

“…… You're stupid to me. ”