A nation's industrial development begins with junior engineers.

Chapter 704 So that's how it is! We almost bought the box and returned the pearl.

"Is it very impressive?" The naval leader couldn't help but ask again, seeing his excited expression.

Jiang Xia was completely absorbed in the world of photos and had no time to pay attention to the big shot. She just started flipping through those few low-quality photos over and over again.

"Huh? Where's the starter motor? There's absolutely no trace of it in the photos... not even a hint of the auxiliary power unit! No wonder you guys said this thing can't start..."

"Without a starter motor to drive the engine, the compressor simply cannot reach the minimum speed required for ignition, and injecting fuel into it is useless; it's simply destined to flood the cylinder."

“Hey, there’s some empty space here too,” he moved to another photo, pointing to a clearly structured but spacious compartment in the mid-stern of the ship. “Judging from the pipe layout and the bolt holes on the base… aha! There should have been a high-power permanent magnet synchronous generator installed here! It’s been removed too!”

"The Bald Eagles not only dismantled the start-up system, but they also removed the core of the entire Integrated Electric Propulsion System (IPS)—the high-power generator! Based on the hull structure and weight distribution..."

Jiang Xia slapped his thigh and quickly pieced together several photos from different angles. He pointed to two huge, square base areas with obvious welding marks on the edges and an abrupt structure on the lower part of the ship's midsection: "So these two locations should be where the large main hydrofoils are installed!"

Moreover, it has hydraulically or electromechanically driven folding main hydrofoils! No wonder the report said that the ship always tried to 'ride' the tugboat when it was being towed!

This is due to the absence of the main lift hydrofoil, which completely disrupted the hydrodynamic configuration and caused hydrodynamic instability!

Jiang Xia became more and more excited as he spoke, almost covering the entire table with photos, and his analysis was very logical and well-reasoned.

The naval officer listened, stunned, and instinctively grabbed a pen to take notes. However, his note-taking speed was still not quite up to the level of that airsick guy.

In a moment of panic, he took out the gift that was supposed to be for Xiao Dai Mao, clicked the power switch, and watched as the tape inside the machine began to spin. He then quietly pushed the square, dark green metal box in front of Jiang Xia. To be safe, he also pointed an aluminum-cased microphone on the machine at Jiang Xia.

"Wait, what did you just say... functional damage? What exactly do you mean?" The expert seized on a key point and quickly asked.

"Of course it's a functional failure of the hydrofoil system itself!"

Jiang Xia didn't even look up, his finger precisely pointing to the two conspicuous spots on the photo where short "ailerons" were welded on.

“Look…” Jiang Xia beckoned to the naval leader, pointing to a side view of the ship and continuing to explain, “See these two big black holes? I think the two main wings were removed by the Bald Eagle. With the main hydrofoils removed, the original design’s center of lift and center of gravity matching were completely disrupted.”

The two small gadgets they welded on were too small to generate enough lift to balance the hull, but at certain speeds, such as when being towed, they could generate unstable local lift.

Adding to this the lift generated by the ground effect from the hull itself… the interaction of these uncoordinated forces caused the hull to experience violent coupled longitudinal and lateral oscillations, resulting in a loss of attitude control. No wonder it kept trying to 'climb' onto the hull towing it!

"Oh, oh, oh! I see..." The naval leader nodded repeatedly, whether he understood or not.

"Folding type... Relying solely on simple mechanical linkages or hydraulic servos to control the extension, retraction, and attitude of the hydrofoil is simply a pipe dream to achieve the critical speed for stable 'flight' in high-speed and complex sea conditions!"

“This thing definitely needs a real-time closed-loop control system!” Jiang Xia’s mind was racing. He leaned over the table and carefully wrote down a formula. After obtaining some data through it, he said decisively.

"Then, this thing must be computer-controlled! Yes, that's how it should be controlled by monitoring the hull attitude... adjusting the hydrofoil flap angle or power output in real time to counteract wave disturbances... so much data, the human brain can't process it in time!"

Jiang Xia gestured a circle above his head towards the naval leader.

The naval bigwig's lips twitched: "I just don't believe you. After all your analysis, you've put this kid in this situation, surely you can figure it out!"

Jiang Xia, unaware of what the expert was thinking, continued his analysis: "Yes, sensors are necessary; attitude, altitude, and acceleration all need to be recorded. A central processing unit and servo actuators are also essential!"

By monitoring the hull's attitude and motion parameters in real time, rapidly calculating and issuing commands, and dynamically adjusting the hydrofoil's angle of attack, flap deflection, or power output, wave disturbances can be counteracted and stable flight maintained!

"Hiss—" Jiang Xia gasped, his eyes flashing with a sharp light. "Automated control! That's the key! Testing this real-time attitude control system under high speed and high dynamic response is probably the core purpose of the Bald Eagle Navy in bringing out this early prototype for sea trials! This thing is more forward-looking than hydrofoil technology itself!"

"This is terrifying..."

"Bang!" Jiang Xia excitedly slammed his hand on the table again, startling the naval leader who had been listening intently and trying to digest these "heavenly books."

"Uncle Xiao! Did you find this kind of circuit board on the ship?" Jiang Xia excitedly took a board out of his desk drawer and gestured to the naval leader.

"It might not be green; black could also exist!"

"Or something more complex, with multiple slots and cable interfaces, possibly encased in a metal chassis? Especially near the cockpit or this control room?" He pointed to an area in the photo.

Even the naval leaders were stunned.

What head?

You've gleaned so much from just a few photos? Based on these few shabby pictures, a bunch of blurry oil stains and welding points, you've deduced the hydrofoil layout, control system, and even the experimental purpose of the Bald Eagle? What's wrong with your head?

However, the expert recalled "Teacher Hua's" evaluation of his disciple who ran away halfway through his studies: "Based on the current basic theories, make reasonable predictions about future developments..."

Hmm, that's a very reasonable explanation!

Do you have those kinds of boards? The boss was so overwhelmed by the humiliation of being called a "disgrace to the Navy" that he had the broken boat towed back to the Darian shipyard and then basically stopped paying attention to the details. How could he have noticed these things?

But judging from how logically this kid is analyzing things, could it be that it's not a "shame of the navy" but a gold nugget?

The big shot, lost in thought, could only mechanically shake his head in response to Jiang Xia.

"Hey! Tell them to take a good look. If they want to achieve monitoring, there's bound to be something good on it, like a water level gauge or a one-way gyroscope. At the very least, a Hall effect sensor used to detect the position of the hydrofoil control surface or the speed of the motor is definitely a must!"

"Hey, I've wanted to make this sensor for a long time, but I just can't remember how to do it. If only I could take it apart and work on it..."

"Brushless motors and such are a must-have... Brushless motors are great, they're efficient, have a long lifespan, and offer precise control. Even DJI has to use them to boost production..." Thinking of this, Xiao Dai Mao wiped his drool.

Drones are so much fun, I really want one...