Chapter 4 Looking forward to tomorrow
Author: Charcoal grilled bamboo shoots
Chapter 4 Looking forward to tomorrow
after an hour.
Chen Yi added kerosene and liquid oxygen to the model airplane and drove it to a park by the sea.
Move the drone down, set up the ground antenna, and turn on the remote control to start debugging the avionics signal.
"There is no problem with the altitude measurement, the temperature sensing module of the casing is normal, the fuel range calculation is normal, the speed and distance debugging is normal, the navigation function is normal, the body attitude sensor is normal, and the front and rear cameras are normal."
Compared with the simple ducted aircraft model with only one speed control switch, the avionics system of the turbojet model aircraft is undoubtedly more complicated.
Due to the lack of ground radar, altitude measurements can only be made with the help of altimeter measurements of air pressure and temperature.
The speed and distance of the model aircraft when flying in the sky, as well as navigation debugging, are different from ground navigation that mainly relies on base station triangulation positioning. It needs to rely on Beidou positioning for calculated navigation.
I was busy for more than forty minutes.
Night has fallen, all functional debugging of the aircraft model has been completed, and the report for the drone test flight has been completed.
Chen Yi sat in front of the computer, with his left hand on the throttle lever, his right hand on the joystick, and his feet lightly on the rudder.
A long cry.
Avionics system starts.
Engine ignition starts.
Chen Yi released the brakes on the model aircraft, opened the throttle valve, and pushed the throttle lever
boom!
A blue tail flame erupted from the engine nozzle of the model aircraft drone.
The powerful engine thrust pushed the model aircraft drone straight out.
The tail flame is more than half a meter long, and in the night, you can clearly see the Mach rings connected in a circle.
"take off!"
Chen Yi pulled the control lever.
With a bang, the drone lifted up at a large angle in mid-air, like a vertical rocket, soaring straight into the sky.
"Raise the altitude, fly to the ocean, and then test the maximum speed and maximum altitude."
Chen Yi controlled the drone, quickly climbed to an altitude of 500 meters, then changed direction and flew towards the ocean.
The computer next to him, on which Chen Yi had spent a lot of money to purchase customized avionics software, was continuously beeping, indicating normal communication.
The right side of the software displays various parameters such as the drone's speed, fuel life, altitude, longitude and latitude, orientation, acceleration, etc.
The interface in the center is divided into four parts.
The two areas above show the front and rear perspectives of the drone camera respectively.
The following two parts, one is a dynamic map positioning, and the other is a 3D model composed of lines, which simulates the body posture of the real drone in real time.
Soon, the drone entered 10 kilometers into the ocean, completely away from the human activity area.
Chen Yi looked at the map positioning, pulled the joystick, increased the output of the throttle and throttle, and the entire drone began to climb straight.
In the dark night, stars seemed to twinkle in the direction of the ocean.
On the monitoring screen of the computer next to it, the real-time simulation of the fuselage posture was already pointing straight upward.
The first perspective of the camera on the front of the drone, where stars slowly begin to appear.
The entire plane is flying towards the stars!
"1600 meters. 2000 meters. 3000 meters. 5000"
Chen Yi kept the drone climbing, but focused on the computer monitoring screen next to him, staring at the drone altitude parameters displayed on it.
"7900 meters. The speed breaks the sound barrier! The speed is 512 meters per second, and the fuselage is shaking!"
At this time, through the shaking of the camera's perspective, Chen Yi judged that the fuselage was already shaking.
Real-time simulated 3D model, the diameter of the engine's nozzle is also expanded to the maximum due to supersonic speed.
The temperature parameters next to it are also soaring, which means that the drone is about to enter a thermal barrier caused by ultra-high speed, air and body friction.
Chen Yi controlled the power output to ensure that the shaking drone would not be further torn apart by the air.
Another ten seconds passed, and the model aircraft drone began to enter the heat barrier, and the edge of the camera captured the red fuselage due to the heat barrier.
In less than a minute, the drone climbed to an altitude of 20,000 meters.
This altitude has exceeded the ceiling altitude of most modern fighter jets.
The camera at the rear has captured the night-time lights of the entire Penghai City and surrounding cities.
"At an altitude of 20,000 meters, the thin air in the stratosphere has affected the combustion efficiency of turbojet engines."
Chen Yi looked at the computer display that there was still three-quarters of the fuel left. Without hesitation, he opened the valve of the oxidizer fuel tank and started the injection of liquid oxygen.
Beep!
A long cry.
The drone's nozzle turned into a cone-shaped trumpet shape, and its speed and acceleration suddenly surged.
However, thanks to the thin air in the high-altitude stratosphere, although the speed increased dramatically, the fuselage flew more steadily.
There was no shaking in the fuselage because the speed was too fast like when it first started climbing.
"30,000 meters, 38,000 meters, 40,000 meters, 55,000 meters, entering the ozone layer, the camera captured the sun."
When the drone climbed to an altitude of 50,000 meters, the sun, which had been setting for more than two hours, reappeared at the edge of the screen.
Chen Yi did not continue to let the drone climb, but adjusted the drone's flight attitude.
From climbing to direct flight, the camera pointed at the sun and took several photos in succession.
After taking the photos, Chen Yi had a detailed understanding of the performance of the drone and had an idea of ​​the upcoming live broadcast promotion, so he no longer planned to continue flying.
Control the drone to turn its nose and start to slow down and land.
Ten minutes later, two blue tail flames fell from the sky, slid along the straight road in the park for nearly a hundred meters, and then stopped steadily.
[Item: Fixed-wing model aircraft drone]
[Attributes: Energy x7.3, Speed ​​x13.8, Stability x4.9 (-0.6), Strength x9.4, Communication x10.5, Radar photography x6.1, Avionics x8.7, Beauty x2.1]
【Conscious wave: 489】
[Adjustable attributes: 0]
"It seems that crossing the sound barrier at low altitude when climbing still has some impact on the drone."
Chen Yi checked the status of the drone and saw that the stability attribute had been reduced by 0.6: "The stability attribute has been reduced. This should be a problem with the internal structure of the drone."
I have been running a model aircraft business for several years.
Even if he is not from a professional discipline, Chen Yi still has a certain understanding of aircraft.
When an aircraft flies at high speed, in addition to having to fight against the resistance of the air, the parts and structures inside the fuselage also need to withstand the overload and torsion caused by ultra-high-speed flight.
If the former fails, the aircraft will be torn apart by the air because it cannot withstand the tearing force of the air.
If the latter fails, the aircraft will fall apart due to excessive overload.
Just when climbing at high speed, the fuselage vibrated.
The high probability is that the problem occurs because the mechanism design is not perfect and the stability is not enough.
If the speed had been faster at that time, or if Chen Yilai had maneuvered at a large angle, the drone would have definitely fallen apart in mid-air.
"It seems that when making ultra-high-speed aircraft in the future, in addition to speed, stability attributes are also critical."
"This time, I have 400 consciousness waves left. I can also adjust two attributes. Reduce the aesthetics by a little, and reduce the communication by a little. Together, I can increase the stability."
Colorful lights bloom.
Well, it's even uglier.
Chen Yi took a look at the adjusted drone, logged into the self-media accounts of major platforms, uploaded the photos he had just taken and the screenshots of the avionics software interface, and issued a unified notice.
[The brand new turbojet can go straight to an altitude of 50,000 meters, watching the sunset and admiring the stars. Looking forward to tomorrow!]
Chapter completed!