Love in the Courtyard: Starting with Engineers

Over the Pacific Ocean, the camouflaged US reconnaissance plane circled in the clouds for half a day, but still only managed to capture a jumble of interference signals.

The pilot's patience had long since run out. Gritting his teeth, he requested permission from ground control: "Request to break through the interference and approach Chinese airspace for reconnaissance!"

Command center's response: "Approved! Avoid radar and obtain core engine data at all costs!"

The pilot grinned maliciously, maneuvering the reconnaissance plane to descend to a low altitude, skimming the clouds close to the coastline, and stealthily intruding into Chinese airspace.

He thought that low-altitude penetration would allow him to evade radar detection, but little did he know that the air defense network of the northern air force test base was already tightly woven.

"Report! Unidentified target detected entering airspace at low altitude, 80 kilometers from base, altitude 1,500 meters, speed 750 kilometers per hour!" The radar operator's shout pierced the silence of the control tower, his fingertips fixed on the red dot on the screen.

The base commander slammed his fist on the table: "Order the air defense detachment to carry the Hongying-5 man-portable air defense missiles and proceed to guard point number three! Provide radar guidance throughout the entire process; make sure to shoot it down!"

The Hongying-5 is an improved version of the Qianwei-18 developed by Li Yu, and it can now accurately target almost all existing reconnaissance aircraft in the world.

Air defense detachments are elite forces that have undergone professional training. They are thoroughly familiar with the operation of individual air defense missiles, target locking, and fire control.

In less than three minutes, three fully armed air defense soldiers were already lying prone on the barren slope of the No. 3 guard post. The withered yellow grass concealed their figures, and the missile launcher's scope clearly captured the reconnaissance plane that was still circling recklessly.

"Target locked! Signal stable!" the air defense squad leader reported in a deep voice, his finger firmly on the trigger. "Requesting permission to fire!"

"emission!"

The moment the command was given, three fiery red trails of flame ripped through the sky almost simultaneously, and the missiles, trailing a sharp whistling sound, hurtled straight toward the reconnaissance aircraft.

The pilot, still staring at the screen and fiddling with the instruments, suddenly heard a piercing alarm, and the indicator lights on the instrument panel instantly turned all red.

His face turned ashen, and just as he was about to pull the control stick to evade, the first missile had already accurately hit the left wing of the reconnaissance plane.

"boom--"

A deafening roar followed, and flames shot into the sky.

The reconnaissance plane's left wing was blown to pieces, the fuselage lost its balance, and it plummeted downwards, trailing thick black smoke.

Immediately afterwards, a second missile struck the middle of the fuselage, and the explosion ripped through the surrounding clouds.

The pilot screamed as he ejected from the cockpit, and as soon as he landed, he was surrounded by the garrison troops who had rushed to the ground.

"Hands up! Don't move!"

The cold muzzle of the gun was pointed at the pilot's head. He was so frightened that he trembled all over and obediently raised his hands, while babbling incomprehensible foreign languages.

The research and development workshop was brightly lit at this moment.

Li Yu carefully used tweezers to pick up the miniature turbine blade with biomimetic patterns and placed it on the test bench.

The moment the start button was pressed, amidst the roar of high-speed operation, the parameters on the screen flashed red.

"It's done! It's done!"

Old Wang was so excited that he hugged Li Yu tightly.

The next day, a farce about chalk was unfolding in the classrooms of Hongxing Elementary School.

Since being tricked by Nannan last time, Yan Bugui has been so heartbroken that he hasn't slept well for several nights.

This time, he carefully wrapped the chalk stubs he had collected over half a month in layers of wax paper and locked them in the bottom drawer of his desk. He even tied the key to his belt, afraid of losing them while walking.

During class, he would hold a piece of chalk about the thickness of a finger, write a word, and then quickly pull it back, wiping it clean with his sleeve, afraid of rubbing off even a speck of chalk dust.

"Students, copy the four characters 'Defend the Homeland' ten times! Write them small to save paper!" Yan Bugui stood on the podium, shouting at the top of his lungs, his eyes glancing towards the drawer from time to time.

Looking at his miserly appearance, Nannan's mischievous thoughts resurfaced.

As soon as the bell rang, Yan Bugui had just left when Nannan pulled Xiaopang into the classroom.

Little Fatty tried to pry open the newly replaced lock with a wire for a long time, but he couldn't manage it. Nannan's eyes lit up, and she took out a bar of soap from her schoolbag, rubbed some soapy water into the keyhole, and then had Little Fatty bend the wire into a hook shape.

With a "click," the lock opened.

Nannan took all the chalk from the drawer, replaced it with pre-prepared crushed lime, and then hid the chalk in the ceiling of the classroom.

In the afternoon, Yan Bugui walked into the classroom humming a little tune, habitually opened his drawer, and took out a wax paper packet. Upon opening it, he found it full of white, fluffy lime, which blew into his face.

"My chalk!"

Yan Bugui yelled and jumped up to grab the lime, but he choked and coughed so badly that his face turned purplish-red.

He immediately fixed his gaze on Nannan, pointed at her, and stammered, "You...you've done it again!"

The little girl blinked her big eyes, looking completely innocent: "Teacher Yan, I went home right after school this morning, how could I be up to something? Maybe a mouse took the chalk and replaced it with lime!"

Little Fatty chimed in from the side, "That's right! I even saw a mouse hole in the classroom yesterday!"

Yan Bugui was so angry that his teeth itched.

On her way home from school, Nannan told Bailing about it, and Bailing was both angry and amused.

Then, looking at Nannan seriously, he said, "It's wrong of you to play tricks on your teacher like this all the time. Although Teacher Yan is stingy, chalk is still a precious resource, and it's wrong of you to waste it like that!"

"Furthermore, your act of taking things cannot be considered a simple prank; it is theft."

Seeing how serious her mother was, the little girl lowered her head and said, "Okay, I understand, Mom. We won't take things anymore."

As evening fell, a military representative solemnly addressed Li Yu, saying, "Chief Engineer Li, the success of the micro turbine blades represents a crucial step forward in the development of the drone. We now entrust the final assembly of the drone to you!"

Li Yu nodded vigorously: "Please rest assured, Commander! We will definitely build drones as soon as possible to safeguard every inch of our motherland's airspace!"

In the base's interrogation room, the captured US pilot hung his head, confessing to his crimes.

M quickly engaged in diplomatic negotiations with China, and only after promising to exchange some resources was the pilot extradited back to China.