Chapter 75 Who taught you to omit it like this?
"Chief, you also saw the plane, just like that."
"It's raining so heavily."
"Let's go back."
Lin The owl turned his head and pursed his lips: "Return?"
What a joke.
Take off your pants and ask me to put them back.
The cute and cute airplane in front of him whetted his appetite.
If it’s a regular shape, that’s fine.
Lin Xiao has seen so many airplanes that he doesn’t have to get to the bottom of it.
But now.
There is something that breaks the conventional cognition in front of you, how can you return now?
“I’ve been a soldier all my life, so it’s okay if it rains a little bit.” Lin Xiao waved his hand.
Chen Chen: "I have something to do and I am weak. How about I come back?"
Lin Xiao smiled heartily and pinched Chen Chen's wrist: "Minister Zhang, you are responsible for making a special trip today to Mr. Chen holds an umbrella and uses military law to deal with it.”
Zhang Taihuan then smiled: "I promise to complete the mission."
"Come on, let's introduce this plane."
Chen Chen looked back at Wei Xiao helplessly.
At this time, she was already lying on the stool, covering Ba Liang's heart with an expressionless face.
Chen Chen could only sigh and introduce in a low voice: "SFNB01, the name is inspired by our gratitude for the wind."
"As a start-up company, Chendun is fortunate to be supported by Shunfeng."
"Everyone in our company is grateful and hopes that Shunfeng Group will do better and better in the future..."
Lin Xiao patted Chen Chen on the back: "These people talked to Mr. Wei in private and said it was useful. Where is the body data?"
He has experienced Chen Chen's words.
Most people can’t bear it.
This is why Lin Xiao came in person.
If Zhang Taihuan or Sun Changxing were put in charge, Chen Chen might actually be able to defuse their confusion.
"Okay..."
"Wingspan 15.4."
"Captain 7.5."
Hearing this number, Sun Changxing nodded secretly.
The captain is half the wingspan.
No wonder it looks so out of place.
The wingspan to fuselage ratio of normal aircraft is mostly 1:1.
There are also cases of 0.7 or 0.8, but they are not mainstream.
"There must be a reason for wearing leather trousers over cotton trousers. What was your starting point for making the plane so sexy?"
"In Qianjiang." Chen Chen said naturally.
Lin Xiao pinched Chen Chen's shoulder hard: "Speak carefully."
"Hiss..."
"SFNB01 has the same main function as the Double-tailed Scorpion. Or send it by express delivery.”
"We summarized the shortcomings of the Twin Tail Scorpion. The fuselage is too long and the flexibility is affected."
"Under this size, the truck can be easily loaded and can also be transported on a standard four-lane highway."
Sun Changxing didn't buy it at all: "What a fool, you're already a plane operator, and you're still considering road transportation?"
Seeing that he couldn't be fooled, Chen Chen could only tell the truth: "You are also in the aviation industry. Yes, do I still need to mention the benefits of a large wingspan?”
“In order to consider the lift characteristics?”
"Look, you already know the answer, and you're still asking me?"
Theoretically, the longer the wing, the closer it is to the 2D flow field, and the higher the lift-to-drag ratio.
Specifically in terms of aircraft performance.
The ceiling and battery life will be significantly improved.
Most aircraft designed for high-altitude and long-endurance, such as the U-2, M55, and those solar-powered global aircraft in recent years, have a wingspan much longer than the fuselage.
"So what is the maximum ceiling of SFNB01?" Sun Changxing was very curious.
“More than 7,000 meters.”
Hear this number.
Lin Xiao suddenly frowned.
He clearly remembered the relevant data of the Twin-tailed Scorpion. Its ceiling was 10,000 meters.
SFNB01 is much inferior.
Sun Changxing was also a little suspicious: "The lift-to-drag ratio of your aircraft should be good."
"Why is it getting lower and lower?"
"No. It should be."
Chen Chen spread his hands helplessly: "I have already said that private enterprises are not skilled in technology, and the double-tailed scorpion is an accident."
"What about the endurance? With such a long wingspan, there must be a big breakthrough in mileage and flight time, right?"
"More than 1,200 kilometers." Chen Chen said simply.
As soon as this number comes out.
Everyone was obviously disappointed.
The ceiling is inferior to that of the Two-tailed Scorpion.
The flight time is also not satisfactory.
This data level is already very good for other manufacturers.
But it is far from enough for Chendun.
At this point, people like Zheng Yucun, who came into contact with Chendun for the first time, began to have doubts. It would be too risky for them not to extend the Scorpion and develop a completely different aircraft.
Whether the appearance is good or not, it all serves performance.
The performance numbers are significantly reduced, so the appearance of this model is just ugly.
But at this moment, Zhang Mingrui emerged from the crowd and looked at Chen Chen suspiciously.
"I just had a chat with someone from the confidentiality department."
Chen Chen felt nervous.
Zhang Mingrui's lips became more and more crooked: "According to the information they have, SFNB01 had conducted a small-scale test flight before, right?"
Chen Chen's eyelids jumped: "Right... right?"
"People said that your first test flight had already flown at least 10,000 meters high."
"Really...?"
"And people said that you flew at eight o'clock the morning before I ordered a test flight. The plane landed in the early morning of the third day, and the flight time was almost 40 hours. You told me that the maximum range is only 1,200?”
"I can't remember clearly..."
Chen Chen felt bitter in his heart.
He said to me that this is not a confidentiality department. Isn’t this a pure leaking department?
At this time, Lin Xiao finally understood.
Twin-tailed Scorpion has a flight time of 34 hours, and SFNB01 has a flight time of 40 hours.
Moreover, SFNB01 is smaller in size. Even if its power level and aerodynamic layout are worse, the mileage cannot be reduced by half, right?
“You boy, have you learned to tell lies with straight eyebrows and glares?”
Lin Xiao pretended to be angry.
But Chen Chen's attitude was firm: "There is absolutely no lie."
"Shit, people say your test flight ceiling is more than 10,000."
"Yes, I am more than 7,000 meters away. Didn't you hear the word "surplus"?"
Chen Chen was so confident that Lin Xiao suddenly couldn't handle it.
"How much is left...?"
Chen Chen: "7,000 left."
"Ten thousand and fourteen???"
Chen Chen nodded, and everyone present was stunned.
Do you ever talk like that?
Is there a multiple left?
The brain circuits are almost going to the gallbladder.
The person who designed you must be a genius.
Lin Xiao immediately asked: "Where's the mileage?"
"It's more than 1,200."
"How much more!?"
"It's 1,500 more."
"Two thousand seven!?"
Chen Chen: "Simple addition, don't doubt yourself, it's two thousand and seven."
"..."
Just an integral multiple of the remainder.
Now there are more than 1500.
Who taught you to round like this?
The person who designed you must be a pervert.
Lin Xiao finally understood. Chen Chen couldn't believe a single punctuation mark in his mouth.
You can wind into the ditch if you don't pay attention.
Sun Changxing and Zhang Mingrui looked comfortable.
There is no other reason.
When the lift-to-drag ratio of SFNB01 is high, this kind of data is the proper performance.
Then they looked at Chen Chen with admiration again.
High lift-to-drag ratio and long wingspan are certainly beneficial.
But it also tests the strength of the fuselage.
Otherwise, all airplanes can have long hands and short bodies, so there is nothing strange about it.
This shows that Chen Chen’s aircraft has core technology.
Sun Changxing analyzed: "In this case, the material requirements are increased in disguise."
Zhang Mingrui: "Yes, strengthening the fuselage strength means that the payload mass must be reduced, and it must be Make up for the longer part of the wing."
Lin Xiao listened to the two's analysis and immediately turned to ask Chen Chen: "What about the mass of the aircraft?"
Chen Chen was a little confused and hesitated. Two seconds later: "Just over 900 kilograms."
"How long has it been?" Lin Xiao was already exhausted and asked before he finished speaking.
“One ton.”
“1.9 tons? Speak politely!”
Lin Xiao was so angry that his mouth was twisted. Did your math teacher teach you this? ?
On the other hand, the other people on the side were half laughing, and half were marveling at it, shouting in their hearts that it was awesome.
Chen Chen crossed his arms and spread them completely.
I didn’t lie either.
1.9 tons＞900kg.
More than 900 kilograms, bite me if you don’t accept it.
(End of this chapter)