"Commander Lu, this is for you."

A group of people took a car to test the flight test site, and the engineers of the aerospace industry base took some soundproof earmuffs to Lu Yi and Professor Su, including Professor Hill.

"In the test flight area, see if there are people, let them leave or bring them here, and ask the console to pay attention to the test flight altitude and do a good job of fire prevention measures."

Lu Yi looked around, this is a remote area nearly two kilometers away from the aerospace industry base, and there are no private buildings around, but Lu Yi still asked everyone to go around to see if there are others.

Unlike ordinary jet engines, which are precise and controllable, the energy output of a nuclear fusion reactor is too high.

Even if the lowest dose of propulsion fluid is injected, the instantaneous expansion pressure and injection will cause a sonic boom, which will cause damage to the eardrum within a radius of several hundred meters, and the exhaust gas of ultra-high temperature injection may also cause a fire or other safety incident.

"The safety plan is already in place...... But there were two people on the other side......"

The person in charge of security at the space base contacted the surrounding investigators, and suddenly said with a strange expression: "A couple is there." ”

"Couples? The ...... of this wilderness"

None of the people present were children, and when they heard the word couple and saw the strange expression of the person in charge of security, their hearts suddenly became clear.

"It's good to be young!" Professor Su sighed, in the early spring of February, spring blooms.

"Are they willing to leave, if they don't want to leave, bring them here, don't have an accident." Lu Yi also said with the corners of his mouth twitching.

The Tomorrow spacecraft is not a military weapon, there is no need to keep it secret, and it doesn't hurt if you really don't want to leave it and let them come and have a look.

"I didn't want to leave, so I asked someone to bring them over." The head of security said.

"We didn't break the law, why let us leave, what did you bring us here for......"

About ten minutes later, a couple in their early twenties were brought in by security officers to the sound of a man shouting.

The clothes of the two of them have been neatly tidied up, but the flush on the woman's face can still be clearly seen, and I don't know if it was blown by the cold wind or what......

"Stop arguing, I'm sorry for the dead, I'm looking for your excitement!"

Compared with the man's shouts of dissatisfaction, the woman saw Lu Yi and his party from a distance, and after recognizing the face of Lu Yi's idol, the worry of being forcibly taken away was put down, but then she couldn't suppress the shame in her heart and slapped the man on the head.

The jungler was discovered by idols, how can I get an autograph without embarrassment?

"Give them two earmuffs, and the big fat chick is on the scheduled runway."

The person in charge of security didn't let the two people get close to Lu Yi and them, and after seeing the screen of the synchronization console next to the viewing platform light up, he immediately commanded, and then motioned to the other staff around to put on earmuffs.

In the distance, a super-large aircraft that resembles the Kunpeng Yun 20 but is bigger and fatter than the fat girl, and the wings are shorter, are being pulled to the side of the runway by a tractor.

"Commander Lu, the first test is to simulate a taxiing take-off without a launcher, with a runway of 1,300 meters."

"The runway is 1,300 meters, and ordinary civil runways are of this length, is the lift provided by the wings of this spacecraft so short?

Also, I remember that the spaceships are all fixed-wing, and there are no control wings of ordinary airplanes, so how can I control the flight within the planet? ”

Lu Yi didn't ask, but Professor Su raised his own questions.

"This is no problem, the wing lift is assisted, and the take-off mainly depends on the cooperation of the main engine and the auxiliary engine of the spacecraft, the spacecraft cannot be aerodynamically controlled without controlling the wing, but the auxiliary engine in the direction of the multi-angle direction can better control the power direction of the spacecraft."

The person in charge of the test flight of the space base looked at the screen and briefly answered the questions raised by Professor Su, and then said: "The ignition of the nuclear reactor is successfully running at the lowest power, the small pressurized water reactor generator set is working normally, the system is self-checking, and the battery pack is pre-energizing the superconducting coil of the engine......

"It's a spaceship! Nuclear fusion spaceship! ”

The couple not far away also exclaimed in surprise when they heard the voice of the person in charge of the test flight, they are not stupid, conventional aircraft do not need to use nuclear fusion square reactors, and only spaceships that go into space do.

With this exclamation, Lu Yi and his group also saw that the air at the tail of the big fat girl in the distance of the runway suddenly ignited a plasma flame, which was the air temperature directly heated to the plasma state under the ultra-high temperature exhaust gas of the nuclear fusion reactor.

The air was twisting and steaming, the turf behind the big fat girl's tail was rapidly drying and then burning, and the hot air expansion brought strong cold and hot convection to set off a whirlwind......

"Ready to inject the propulsion working fluid, everyone wear soundproof earmuffs!"

After the system inspection was completed, the take-off process entered the next step, and the person in charge of the test flight on the side of the viewing platform said loudly.

Lu Yi and the others put on soundproof earmuffs, although they are 500 meters away from the area where the spacecraft passes, but they are still needed for ear insurance soundproof earmuffs.

Seeing Lu Yi and the others wearing soundproof earmuffs, the couple who had been shocked and speechless also hurriedly put on the earmuffs in their hands and opened their mouths with common sense.

"The viewing platform here is to determine safety, increase the energy output of the nuclear fusion reactor, start the lowest dose of working fluid injection, and the expected thrust is 19,300 kN!"

It was determined that Lu Yi and the others and the security personnel around the test flight area were wearing earmuffs, and the person in charge of the viewing platform said to the console personnel who were in the space base.

Boom!

Two seconds after the words fell, the command from the console was transmitted to the spaceship, and a pop suddenly sounded on the flat ground, and a large beam of blue light erupted from the tail of the spaceship, and the spaceship moved forward quickly like a rabbit!

Thrust 19300 kN, the spacecraft without loading cargo has a mass of 236 tons and an acceleration of 8 meters per second!

The spacecraft traveled at a speed of 28.8 kilometers per hour in the first second, 57.6 kilometers per hour in the second second, and 86.4 kilometers per hour in the third second......

Thundered!

The speed of the spacecraft has increased by more than 100 kilometers in less than 4 seconds, and the mass of more than 200 tons is galloping in the runway, accompanied by a violent roar, and the momentum is like a sea of mountains!

In 10 seconds, the 1,300-meter-long runway slid a third, and the intelligent program on the spacecraft began to automatically accelerate the spacecraft, the power of nuclear fusion energy increased again, the amount of propulsion fluid injection increased, and the thrust of the engine was one-fifth!

Disheveled! The blue light ejected by the main engine of the big chubby chick was even more intense, and the gusts of wind rolled up by the hot and cold convection and exhaust jets.

Acceleration increased from 8 meters per second to 20 meters per second, and the ship's speed suddenly increased from 80 meters per second in the 10th second to 100 meters per second, and then 120 meters per second......

The whistling sound and engine roar brought by the spacecraft taxiing became louder and louder, and the remaining distance of the runway became shorter and shorter, and suddenly the auxiliary engine in the abdomen in front of the spacecraft opened, and with the assistance of the wings, the spacecraft with a mass of up to 236 tons jumped directly on the runway, and the clear blue tail flame was sheng, and a large angle pulled up the entire spacecraft straight into the sky!

"Did you take a picture?"

The woman in the couple watched in a bit of a daze as the ship disappeared into the clouds in a matter of seconds, reaching for the earmuffs and touching the man's shoulder.

"No...... I didn't dare to shoot. ”

The man swallowed his saliva, and the netizen mentioned above in the military forum went to Shen Fei to secretly shoot the test flight of the fighter and was invited to eat for 15 days.

"How much power did the engine input during the climb just now?"

More than ten seconds later, Lu Yi took off his earmuffs, felt the residual heat in the air, and couldn't help asking.

The spacecraft in the sky is no longer visible, and the roar has almost disappeared in the ears, and the monitoring data shows that in just ten seconds after takeoff, the spacecraft has reached the stratosphere at an altitude of 10,000 meters.

"Eighty percent of the power input, 188,800 kN of thrust, the spacecraft acceleration of 69.3 meters per second."

The person in charge of the test flight of the space base looked at the data on the monitoring screen, and was impressed by the earth's gravitational acceleration, and the actual acceleration of the spacecraft needed to be subtracted from a part.

At this time, less than a minute after the spacecraft took off, the speed had reached nearly 2,000 kilometers per second, and according to this speed, the spacecraft could rush into geosynchronous orbit at a speed of 20 kilometers per second in 5 minutes after takeoff.

Without going through orbit changes, without the centrifugal force of the earth's rotation, let alone any multi-stage ignition, the picture of such a violent vertical pull directly out of the earth has only appeared in the dreams of astronauts like them......

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