Changkong Fighter

Chapter 109 Highway Takeoff
As the technicians shouted, the technicians in front of the nose of the aircraft quickly dispersed and put on noise-canceling headphones. At the position of the nose of the aircraft, a 300MM thick homogeneous steel plate was placed there, and behind the steel plate was a thick concrete wall to prevent the discarding sabot bullet from penetrating the steel plate and causing accidental injuries to other people.

"Observation team, get ready!"

"Clear the area!"

"The fire control system is normal!"

"Comrade, you may open fire."

After that, the technician left and the canopy closed. Liu Jun gripped the side stick slightly and selected the machine gun through the hands-on-stick system.

On the fuselage status, the position of the machine gun is highlighted.

With a ding, the mechanical safety was pulled down and a line of Chinese characters appeared on the control panel.

[Ready-Machine Gun (300/300)]

This was also discovered by Liu Jun. There are very few English words in the entire control system, and it is almost entirely in Chinese.

The index finger pulls the trigger.

Boom!Boom!Boom!
A huge echo reverberated throughout the entire workshop. The electric trigger fired 30MM sabot bullets, and the two gun barrels sprayed out fire snakes alternately. After flying out of a safe distance, the sabot bullets shed their shells under the resistance of the air, revealing the sub-caliber steel needles inside, and then shot towards the erected steel plates.

The sound of swishing and breaking through the air continued to be heard, and the air was pierced by machine gun bullets.

boom! boom! boom!
A large amount of flames emerged on the homogeneous steel plate. Due to the high-speed collision between the metals, the semi-molten steel splashed everywhere under the high temperature and high pressure, and deep pits appeared on the steel plate.

All 300 rounds of machine gun fire were used up in about five seconds. The 300MM homogeneous steel plate could not withstand the continuous impact. More than ten steel needles penetrated the steel plate and penetrated into the concrete protective wall behind it, making deep holes.

When the shooting was over, the muzzles of the two 30-2 guns turned slightly red, and the hot gas was steaming and rolling, causing the area around the muzzles to twist abnormally. The skin was charred black by the gas. Liu Jun felt the vibration of the firing. The feeling of firing this machine gun was very cool!
"That's enough!"

The technician took off his earmuffs and looked at the open area in front of the nose of the aircraft. He clicked his tongue and saw the steel plates that had been beaten into a sieve. In this round of machine gun ammunition was emptied and several BMWs went in.

The canopy was opened and the technician climbed up the ladder again.

"Won't this discarding sabot bullet cause the aircraft to hit?" Liu Jun asked curiously.

"Haha, comrade, don't worry, our design will naturally solve this problem. We will pass..."

The technician explained patiently, and then began to talk about some terms that Liu Jun did not understand at all. He used the technician's unique technical language and listed data to reassure Liu Jun that it was impossible for the shell to hit the plane.

"Okay, the machine gun is almost ready. Comrade Liu Jun, is there anything that needs to be improved? As a frontline fighter, your suggestions are very important to us!" The technician took out a notebook to record the suggestions made by Liu Jun and then improve the weapon.

"The rate of fire is too fast. If I'm engaged with the enemy for a long time, with 300 rounds, a 3400 rpm rate of fire, and a 5-6 second firing interval, if I miss a few windows, I'm worried that I'll run out of gunfire, affecting sustained combat. If I can't increase the ammunition reserve, can I adjust the rate of fire?"

Based on his own practical experience, Liu Jun talked about the unexpected events that occurred in actual combat. Although his machine gun was accurate, the enemy was not a fixed target and would also make evasive maneuvers.

"That's no problem. The 30-1 gun had its firing rate adjusted in Russia. Lowering it a bit would also reduce the barrel's overheating rate and the failure rate. How about 2400 rounds? That would increase the firing time to 7-9 seconds." "Okay, that's enough."

"Okay."

The technician said happily, and quickly wrote down Liu Jun's suggestion on the notebook at hand, writing the firing rate of 2400/minute in red pen.

"Is there anything else we need to adjust?"

"The vibrations from the cannon firing are too great. I'm worried about the accuracy and the strength of the skin."

Liu Jun expressed his feelings. The J15T in the air is not like on the ground. The fighter is constantly floating up and down and left and right in the sky. The vibration will be amplified, affecting the shooting accuracy. In addition, will the skin of the machine gun be shaken open by the vibration?

"No problem, then adjust the intervals for staggered firing and reinforce the cover. Oops, that's not right, so why are there two barrels?"

The technician scratched his head, drew a question mark after 30-2, climbed down the ladder, and went back to discuss with the people in the team to see if they should use the original version. This is how design is done. After making many changes, you still have to use the original version in the end.

Liu Jun looked at the technician who was lost in thought and climbed down the boarding ladder. Halfway up, he suddenly found a clean rag on the ladder. He picked it up and wiped the area on the skin that was blackened by gas. The little girl had her face dirty, so he wiped it for her.

Another half month passed, and it was the end of March 2025. The temperature in Shandao City had risen a lot, some tender green grass had bloomed on the lawn, and the breath of spring gradually permeated every corner.

After continuous improvement, testing, improvement and re-testing by the technical team, Liu Jun's J15T completed the system preparation on the ground.

hum!hum!hum!
The yellow warning light flashed, and the door of the laboratory opened to both sides. Then a trailer carrying the J15T landing gear slowly drove out of the workshop like a high-end tricycle, followed by a tanker truck.

Liu Jun was sitting on the electric car in the back, looking at his new plane and suddenly remembered his old favorite. He asked Wang Jian, who was driving, "Wang Jian, where is my old J15T?"

"You're still thinking about it. The Liaoning is coming back soon. Once it's shipped to Shenfei, it should go into the overhaul workshop."

"Oh," Liu Jun nodded, "where are we flying to?"

There is no runway or airport nearby. Does it have to be towed to the airport for takeoff? But the J15T was not transferred to a flatbed truck, and it was followed by a tanker truck.

While Liu Jun was puzzled, Wang Jian said, "There's a high-standard national highway ahead. There's a straight-line stretch of 3 kilometers with eight lanes in both directions. That's more than enough for the J15T to take off."

Some national highways have very high specifications, even exceeding the standards, in order to be used as airport runways in wartime. These areas often have few obstacles around them and the terrain is flat and open.

The convoy drove slowly along the road, and then we saw traffic police blocking both sides of the road in the distance, and the road surface was swept clean.

The trailer pulled the J15T slowly to the flight starting point, and the landing gear tires were neatly aligned with the lines on the ground as if with obsessive-compulsive disorder.

After parking the plane, the tow truck released the landing gear, several technicians came forward, blocked the wheels with chocks, and the tanker truck added internal oil to the fuselage.

Now, the drivers who were originally stopped on both sides of the road immediately stopped being angry and looked at the fighter jet with wide eyes. Some drivers at the back even got out of their cars and moved forward.

(End of this chapter)