BSI Chapter 69 Demo Viewing
Chapter 69 Demo Viewing
After the video presentation ended, Su Chen said something that made everyone in the audience stand up.
"Next, we'll stop watching videos and look at the actual product."
One of the main gates on one side of the field opened. Outside was a prepared open space—about half the size of a football field. In the middle of the open space were several poles and some obstacles.
Three hundred people went outside.
Zhang Lei was already standing at the edge of the open space, holding an F4 in his hand.
Su Chen picked up the microphone.
"The first demonstration—automatic flight path."
Zhang Lei selected an area of open space on his phone. F4 automatically generated a grid flight path. One-click takeoff.
The F4 took off smoothly and then began flying along the automatically planned path. Each route was as precise as if it had been drawn with a ruler.
When the F4 flies near a pole, it automatically veers to the left, goes around the pole, and then returns to its original course. The whole maneuver is smooth and natural.
A gasp of amazement rippled through the crowd.
Zhang Lei held up his phone screen to show those around him—the screen displayed F4's real-time location, which perfectly overlapped with the automatically planned flight path.
"The second demonstration – wind resistance test."
After Su Chen finished speaking, two industrial fans at the edge of the venue turned on simultaneously.
A strong gust of wind swept across. The F4 wobbled in the wind—then stabilized. The hovering precision remained almost unchanged.
Some people in the audience started to applaud.
"The third demonstration—drop resistance."
Su Chen took the second F4 from Zhang Lei. He raised it to a height of 1.5 meters, then let go.
The F4 slammed into the concrete, bounced, and rolled half a circle.
Su Chen picked it up. He powered it on. Firmware self-test passed. He lifted it. He hovered. It stabilized.
The sound stopped.
The sales approach is similar to that of the F3—but the feeling is completely different. Because people know that the F4 is not only indestructible—it can also fly on its own, dodge obstacles, and plan its own routes.
"The last presentation."
Su Chen pointed to a large water tank at the edge of the field.
He picked up the third F4 and threw it directly into the water.
A gasp of surprise rippled through the crowd.
The F4 sank in the water. A minute later, Su Chen pulled the F4 out. He powered it on. The screen lit up. Firmware self-test passed. It lifted. It hovered. It stabilized.
"Waterproof rating IP67. Immersion in one meter of water for 30 minutes will not affect its performance."
Applause erupted from the audience.
It wasn't just polite applause—it was applause born of genuine admiration.
After the press conference, Su Chen was surrounded by a group of distributors.
They're not here to ask questions—they're here to place orders.
A dealer from Zhejiang said, "Mr. Su, I want 300 F4s. I'll pay a deposit first. Is that alright?"
Su Chen instructed Meng Xiaosui to handle all the arrangements. In one afternoon, they received over two thousand pre-orders.
Chen Hongyuan found Su Chen after the press conference.
"Mr. Su, the obstacle avoidance and automatic flight path functions of the F4, if ported to industrial-grade applications, only require improvements in accuracy and adaptation to complex scenarios. The core architecture is readily available."
"Yes. That's the strategic significance of the F4. It's not just a consumer product—it's an industrial-grade technology verification platform. Every F4 sold validates our obstacle avoidance and flight path algorithms in real-world scenarios. This data then flows back into industrial-grade R&D."
Chen Hongyuan nodded.
"So you're using consumer-grade sales to support industrial-grade technology."
"Yes. Real-world scenario data from tens of thousands of units is more valuable than any laboratory simulation."
Lin Zhiqiang also came over.
"Mr. Su, if the obstacle avoidance and route planning capabilities of the F4 could be ported to our line-of-care platform, that would be something we've been waiting for a long time. Can we expedite our cooperation?"
"Yes. Formal development of the industrial-grade prototype will begin in Q4. Testing has already been scheduled for the palm plantation scenario in Indonesia. The Southern Power Grid's power line inspection scenario will be the second."
Lin Zhiqiang's eyes lit up.
On the other side of the venue, Lu Weimin stood alone.
His expression was calm. But Wu Qun knew what that calmness meant.
"President Lu..."
"Don't speak. I'm thinking."
Lu Weimin watched the F4 flying around the obstacles on the open ground. The smoothness of its obstacle avoidance maneuvers sent a chill down his spine.
Tianying's self-developed flight control team was only established six months ago. They haven't even completed basic inertial navigation fusion yet. Meanwhile, Hongyuan has already implemented visual obstacle avoidance and automatic flight path in consumer-grade products.
The gap is not narrowing—it is widening.
Lu Weimin turned and left the venue.
He didn't speak to anyone.
Wu Qun followed behind, wanting to say something, but swallowed his words when he saw Lu Weimin's back.
Because there was no anger in that silhouette. No resentment. Only the silence of someone finally accepting a certain truth.
Meanwhile, Su Chen stood on the other side of the venue, bathed in the Shenzhen sunshine in early October.
He saw Lu Weimin's departing figure.
But he didn't follow.
Because he knew that some wars are not ended with words.
It ends with a product.
And F4—they've already said everything.