The test flight was faster than Professor Su imagined. It only took eight days, and the data was almost complete, which meant that the No. 2 prototype could already initially complete automatic driving.
But this is when the No. 1 prototype and the No. 2 prototype fly on the same day... Each prototype only flies about 10 kilometers, so one is scheduled to be in the morning and the other in the afternoon.
Of course, if it is a normal test flight, even if two prototypes fly on the same day, it is impossible to obtain accurate data so quickly.
This is actually because Wang Xuexin noticed the doubts of Su and the two professors.
If it is Su, and the two of them are not suspicious, then Wang Xuexin is still a little timid and does not dare to go too far, but if the two of them are already suspicious... what is the difference between too much and not too much?
Just like the invigilator already knows that you are cheating, is there any difference between copying more and copying less?
The key is not to get caught!
In this regard, Wang Xuexin has absolute control... The original data is in his hands, he can say whatever he wants, just say that the test results are like this, who can do anything to him?!
Want to see the original data?
Are you suspecting that I, Battalion Commander Wang, have done something wrong?
Even if you use your hands and feet, you should move in the bad direction. How can there be any reason to move in the good direction?
What's more, this is a confidential matter and cannot be leaked.
If we are bombed by Japanese planes some other day during transportation, that would be just right. We will burn them to death without proof!
Because of this matter, Professor Su also asked Wang Xuexin.
"Battle Commander Wang!" Professor Su held the record book and looked at the data on it and asked hesitantly: "Is there any problem with our data?"
Wang Xuexin pretended to know nothing and asked: "What? Are these data wrong?"
"No, no, no..." Professor Su quickly shook his head and replied: "It's not that these data are wrong, but... these data are so right!"
Wang Xuexin frowned and looked up at Professor Su: "Professor Su, I don't understand this. Others are worried about the wrong data when doing experiments, but you are worried about the right data... You can't say this to outsiders casually, others have heard it.
I still suspect you are a reactionary spy!"
Professor Su originally wanted to ask something, but was choked up when Wang Xuexin said this.
Wang Xuexin is right, this thing is no ordinary product.
This thing is a bomb used to fight the Japanese... Everyone is counting on it to be completed quickly and well. Su Caiming is still worried because the data is too correct and the progress is too fast? What's the intention!
So Professor Su no longer asked any more questions or had any doubts. Since the data was given to him, he would just use it on the No. 2 prototype.
At this time, Wang Xuexin even let go and "copied" the real data into the test flight records. By the way, he also moved all the data on rainy days, windy days and even various wind directions.
So in only eight days, the No. 2 prototype was able to fly to Yuanchang Airport without Li Dongcheng's intervention.
But of course, landing still requires Li Dongcheng’s operation.
It is said that when Li Dongcheng came out of the prototype, he asked stupidly: "Brother Kai, everything else is almost the same. This thing can really fly by itself, but the landing has not been completed yet. It should take a while..."
Zhou Yuankai slapped Li Dongcheng on the head: "Are you stupid? This is a bomb. Does it need to land after it flies over the enemy? Can't it just be done by letting it fall from the sky?"
Li Dongcheng said "Oh" and then laughed: "It's true!"
Then he looked at the prototype and sighed: "Oh my god, there really is something that can fly by itself. I can't believe it unless I see it with my own eyes!"
Zhou Yuankai said with a smile: "Isn't that why we are asked to test fly? Think about it, just one thing like this can carry 800 kilograms of explosives and fly to the direction of the enemy! Eight hundred kilograms, do you know what it is? The bombs dropped by Japanese planes only weighed more than 100 kilograms, but we dropped 800 kilograms at once, and we didn’t even use planes..."
Zhou Yuankai got to the point.
To be able to shoot such a long range and carry a charge of 800 kilograms, in this era, I am afraid that only the prototype machine in front of me can do it.
What's even more frightening is that this thing is very cheap. It's just an airplane model plus a few rocket engines. If there's anything valuable and time-consuming, it's the gyroscope and a set of control equipment based on it.
However, after the data was basically in place, a few problems arose.
After the eighth day of the test flight, Professor Su said to Wang Xuexin: "Battal Commander, we found that there are still some errors in the prototype's handling of large-angle deviations. Specifically, when the prototype's fuselage tilts more than 30 degrees, At the same time, the response of the prototype was unsatisfactory, which is likely to cause the prototype to deviate from the original trajectory and affect the accuracy..."
Wang Xuexin thought about it and felt that something was wrong. The data given by the system should not be wrong.
When I think about it more carefully, I can vaguely understand where the problem lies.
If the data given by the system is correct, it means that the prototype machine produced by the R&D team in a short time due to rough equipment or to rush the work has large errors. For example, there is an error in the process of transmitting the gyroscope response from the control system to the rudder of the prototype machine.
These errors can be ignored when the inclination angle is small and the adjustment amplitude is small.
However, if the inclination angle is large and requires large correction data, the error will be amplified, resulting in unsatisfactory results.
Wang Xuexin thought for a while and replied: "Professor Su, for this situation, we may not require the adjustment to be in place at one time, but divide it into several steps, such as adjusting from a large inclination angle to a small inclination angle, and then adjusting the small inclination angle back to the correct position." location, what do you think?"
Professor Su was embarrassed when Wang Xuexin said this...Why didn't they, the R&D staff, think of this method?
The reason is that Professor Su believes that he and the R&D team always treat the prototype's autonomous driving system as a machine...in fact, it is indeed a machine.
But you can’t think like this mentally.
Because when Professor Su and others treat it as a machine, they will have a kind of inertial thinking, thinking that as long as the data is correct, the machine can get it right in one step. If it cannot get it right in one step, there is a problem with the data, so it needs to be adjusted.
Therefore, the R&D team only had cold data and adjustments in mind, and did not consider other ideas at all.
Wang Xuexin gave another idea...
Can the pilot fly the plane in one step?
They also often over-adjust and then fine-tune it, which is harmless, right?
Then why can't a machine do this?
Professor Su nodded and went to discuss it with He Zhimin without saying anything else.
When Professor Su first arrived at Wanxian Airport, he was confident that he could flex his muscles.