A nation's industrial development begins with junior engineers.

Chapter 799 Old Commander, have you ever heard of falling from the sky... no, I mean drifting freely

Comrade Lantian.

A dignified commander of an army.

At this moment, however, it stood like a gatekeeper, stubbornly guarding the workshop gate.

He deliberately stood a little further away, afraid of disturbing the engineers and workers who were engrossed in their work inside. But his slightly hunched yet still upright figure, and the eager and longing look in his eyes that kept darting into the workshop, felt like a needle gently pricking Jiang Xia.

The thought of having a distinguished veteran and a commander of an army guarding this position made Jiang Xia's self-satisfied notion of "optimal resource allocation" vanish instantly, replaced by a sense of utter guilt.

Jiang Xia's heart skipped a beat. He took a deep breath, composed himself, pulled out his notebook, and quickly began to explain to Teacher Shunshou.

"You shouldn't just focus on low-speed, large-return-flow wind tunnels. What can you do with parameters of Ф 3 m x 2 m? Without a three-component strain balance, you can only measure the total pressure distribution, what can you do with that..."

Teacher Shunshou instinctively wanted to object. He had been considering whether he could shrink the model to 0.3 meters and use it in the even smaller 1-meter teaching wind tunnel. Although the Reynolds number would drop to less than 0.3 x 10⁻⁶, causing flow distortion, it was still more reassuring than just imagining things...

But when his gaze fell on the design sketches Jiang Xia handed him, he swallowed back the words that were on the tip of his tongue.

"Hmm? Adjustable floor?" Teacher Shunshou adjusted his glasses, thinking to himself that this kid was obsessed with building excavators, wanting to use hydraulic systems everywhere.

But looking further down the line, the reason is: adding a 0.8-meter-high adjustable floor to the cave walls simulates the ground effect and avoids secondary reflections from the wing root to the floor...

"Hiss...that's something." He had to admit that Jiang Xia's move was indeed quite effective.

Next are the specifications for the three-component strain balance: lift 200 kgf, drag 20 kgf, pitch moment 50 N·m, and accuracy 0.1%.

Teacher Shunshou frowned. He hadn't noticed what this thing was.

Looking more closely at Jiangxia's sketch annotations: the diameter of the flat rod is ≤40 mm, which can be inserted into the central fuselage of the model to avoid the "underwing strut" interfering with the flow field in the fusion zone.

"Isn't this just an advanced support? Why does it need to be so complicated?" Just as he was wondering, Jiang Xia handed him a printed document titled: "A Three-Component Strain Balance Structure and a Measurement Method and Procedure for Assembling Multiple Balances."

He understands "balance," but what is "response"? And "three components"?

Teacher Shunshou's professional curiosity was instantly piqued. He didn't care about Jiang Xia anymore, grabbed the materials, found a nearby workbench, turned on the old desk lamp with the green glass cover, and became completely absorbed in it.

Hey, there's always a hole to dig every year, this year it's yours.

With this three-component strain balance, Professor Shunshou, you can take your time playing with this improved version of the conventional recirculation low-speed closed wind tunnel test section.

This should keep this guy busy for a long time.

I had only taken two steps when Teacher Shunshou grabbed my arm again.

"What?"

"You...you wrote 'high-speed photography to simultaneously record oil flow and silk thread flow' on this...isn't this a bit too advanced?"

"Don't just write a name and say it's usable!" Teacher Shunshou was getting a little frustrated.

"Do you know what our data collection process is like now? We send people to stare intently at the U-tube manometer, manually read the liquid column height, and then take pictures of the model with tracer wires attached using a regular camera! We then compare each picture with the others and manually enter each piece of data!"

Where are we supposed to get this "high-speed photography" equipment? And what the hell is "high-speed photography"? I've never even heard of it!

Unexpectedly, Jiang Xia waved his hand dismissively, his tone as relaxed as if he were talking about a casual meal: "Don't worry. The high-speed camera issue has been resolved."

"Solved...solved?" Teacher Shunshou was even more confused. "When was it solved? How come I didn't know? Where did it come from?"

Jiang Xia puffed out his chest, wanting to say that now was the time to show off.

But then, seeing the slogan on the workshop wall that read, "Leaking secrets is a crime, selling secrets is treason!" he withdrew his head.

"Never mind that. Anyway, apart from the three-component balance, everything else is real. Take your time to figure it out..."

Tsk, I really can't say.

After all, the full name of that high-speed camera is actually 'Nuclear Explosion Fireball High-Speed ​​Camera,' which was prepared for the "young lady." Its specific function is to perform microsecond-level high-speed photography of a fireball from 60 km away, recording the diameter-time curve, and thereby calculating the TNT equivalent.

I only found out about this yesterday when Jiang Xia pressed Director Xiong about how they managed to derive such precise geographical coordinates using radio triangulation. Xiong Huoyan had struggled to explain it clearly over the radio for a long time, because Jiang Xia felt that relying solely on the An-2 aircraft as a direction-finding reference platform theoretically couldn't achieve the reported "degree-minute" accuracy level; it seemed a bit unreliable!

Finally, when the young Bolong reported to Jiang Xia on the progress of the laser rangefinder experiment, Jiang Xia suddenly realized the truth and also solved another mystery: why the laser rangefinder project was progressing slower than expected.

It turns out that Bolong and Professor Daheng's team not only successfully tackled the high-speed camera used to observe the fireball shape of "Miss", but also took this opportunity to go a step further and developed an optical cinema theodolite that integrates angle measurement and distance measurement functions!

This device can simultaneously perform high-speed photography of a target and accurately determine its azimuth and elevation angles. Combined with the known baseline length, it can calculate the target's three-dimensional coordinates through intersection measurement with extremely high accuracy!

Jiang Xia instantly understood: the mine coordinates reported, accurate to the minute, were not merely the result of radio direction finding; it was highly likely that the An-2 aircraft was also equipped with an experimental optical cine theodolite, which performed precise optical mapping and positioning of the target area! This was the real reason for such high accuracy!

So, Jiang Xia directly used the high-speed camera he used to serve the young lady on the wind tunnel.

This is what you call one achievement driving a whole area forward!

If we had had such a high-speed camera back then, the little guy wouldn't have needed to stage that dangerous moment with the old An-2.

After seeing off Teacher Shunshou, Jiang Xia quickly walked towards the real "gatekeeper" at the entrance.

Comrade Lantian had somehow brought over a small stool and was stubbornly sitting in the corner by the workshop entrance. He was holding a notebook and writing something, but after writing only a few lines, he couldn't help but look up, his gaze sweeping eagerly over the Il-28 modified aircraft undergoing maintenance in the hangar, and the three-seat "flying cat cars" in the corner.

When the old man's eyes fell on the slender fuselage of the Il-28, a gratified smile would involuntarily appear on his face; when he glanced at the nimble "cat car" next to him, his smile would widen even more, as if he were looking at his most promising child.

However, after a few glances and a smile, he would lower his head again, his brows gradually furrowing into a deep knot, his pen scribbling on the notebook as if he had encountered a great problem. After the knot formed, he couldn't help but look up again, his gaze seeking comfort as it swept over the steel structures, and a smile would reappear... and so on, in a never-ending cycle.

The setting sun cast a warm golden glow on his already graying temples, but it also clearly reflected the anxiety and anticipation between his brows that he could not shake off.

Jiang Xia walked over quietly and called out, "Commander Zhao."

Comrade Lantian looked up and saw that it was Jiang Xia. He closed the notebook somewhat embarrassedly, but the action still allowed Jiang Xia to glimpse the dense handwriting and many corrections inside.

It appeared to be an airborne training syllabus, which was undergoing extensive modifications and additions based on the performance of new equipment and emerging tactics.

Jiang Xia sighed inwardly: The soldiers in our team, whether they are leaders or ordinary soldiers, all seem to share a common sense of urgency that is ingrained in their bones.

They eagerly hoped to become stronger and wanted to master more advanced weapons, as if only in this way could they live up to their mission and protect this land that had endured so much suffering.

"Hehehe, old commander. Would you like something that lets your soldiers roam around freely?"