Chapter 507: Forward Sweep Wing? Sweep wings!

Looking at the leaders of the National Aircraft Strength Test Institute, who kept swallowing saliva, Chen Geng jumped out of the car, pointed to the two light trucks and said, "A little gift, I hope you like it." Pen %Fun %Pavilion www.biquge.info"

"This is for us?" Hearing this, Luo Yang asked in surprise and shock.

Not only Luo Yang, but the reaction of others was similar: how can it cost more than 100,000 yuan to buy such two cars of things, right?

Chen Geng nodded: "Let's divide it together." ”

Do we have a part in it? The eyes of the leaders of the other units who participated in this test also lit up.

Facing everyone's expectant eyes, Chen Geng nodded: "Everyone has a share." ”

That's great!

Looking at the fat pigs in the carriage one by one, the fat chickens that have been washed and peeled, and the green vegetables...... Everyone's saliva has begun to flood: these two cars of materials, not to mention, add up to five or six tons, there are six or seven units that test the aircraft of Runhua Industry, and each can get an average of almost 1,000 kilograms, if it is placed in the canteen of the unit, it is enough for everyone to be extremely moisturized in the next half month.

The comrades of the National Aircraft Strength Test Institute were not dissatisfied with Chen Geng's decision, and did not think that what Chen Geng brought should belong to them: since in addition to his own units, there were several units involved in the test, if Chen Geng did not give it, it would be fine, and since it was given, it must be everyone's share.

When the time came, looking at the two light trucks of Runhua Industry, Luo Yang was a little curious: "Chairman Chen, this car is very strange, I haven't seen it before." ”

"This is our own production, closed box cargo, how about it, not bad?" Chen Geng patted the cargo box and said with a smile.

These two light trucks with this closed cargo box are the latest commercial vehicle products of Runhua Industry, and they are the first batch of prototypes developed by the light truck technology bought from FAW.

"Not bad, not bad," Luo Yang looked at it and nodded: "This kind of car is too convenient to use." ”

Saying this, the plane has been put down from the special trailer on the side, in order to facilitate transportation, the wing of the aircraft was disassembled, and then reinstalled after arriving at the National Aircraft Strength Test Institute, several designers of Xifei looked at the plane, their faces twitched vigorously, endured and endured, endured and endured, and finally still couldn't hold back, came over and asked: "Comrade Chen Geng, can you explain, your unit wasted the country's funds to develop such a completely worthless aircraft, how do you plan to use it?" ”

Chen Geng didn't answer, but asked Luo Yang, "Deputy Director Luo, who are these people?" ”

Luo Yang hurriedly introduced Chen Geng: "Chen Dong, this Pang Huayuan designer of our Xifei design department. ”

"It turned out to be Designer Pang," Chen Geng nodded, looked at Pang Huayuan and said: "Designer Pang, there are a few points I have to explain to you, first, this aircraft is a project that we have raised our own funds, including the tests that are being carried out now, and we have not asked for a penny from the state, so there is no waste of valuable national scientific research funds;

Second, do you think propeller aircraft are outdated? On the contrary, I think that whether a piece of equipment is outdated or not depends on the specific use scenario, and falling behind in one field does not mean that it cannot shine in other fields;

Third, the reason why we want to develop this aircraft is that we see that it can show its ability in new fields. ”

Pang Huayuan was immediately unconvinced, and he had to argue with Chen Geng with his neck: "Oh? Then I'm going to ask for advice, I don't know where Comrade Chen Geng plans to use this aircraft, is it possible that you plan to use it to fight pesticides? ”

As a military attack aircraft, the A-1 faces an extremely treacherous battlefield environment, so its protection capability is very strong, and it can be described as "rough skin and thick meat". What is that? Pang Huayuan's words were simply mocking Chen Geng for not knowing how to pretend to understand.

"Used to fight pesticides? Well, not bad either. Chen Geng didn't care.

Although I don't know why the designers of Xifei are a little unhappy with themselves, Chen Geng is also too lazy to pay attention: there are many people who are unhappy with Lao Tzu, how many can you rank?

Chen Geng's indifferent look seemed to irritate Pang Huayuan, he just wanted to say something, but when the words came to his lips, he was stuck: this plane was made by Runhua Industry with its own funds, and it didn't cost a penny of the country, so naturally there was no possibility of competing with Xifei for scientific research funds.

He wanted to throw his sleeves away, but thinking of the promise of Runhua Industry that Luo Yang had relayed to him before, Pang Huayuan couldn't move anymore: "Runhua Industry said that after completing this project, in addition to the 'assistance funds' given to Xifei, everyone will have a red envelope of 10,000." ”

10,000 yuan, Pang Huayuan couldn't help but swallow his saliva: How much can you do with these 10,000 yuan? You can even buy a house directly in Chang'an City! Forget it, the money belongs to other people, people can spend it how they want, they really eat salty radishes and worry about it, for the sake of money, what you say is what you are.

Thinking of this, Pang Huayuan snorted and stopped talking-the intellectual's nobility made Pang Huayuan compromise in his heart, but he still couldn't pull down his face.

Pang Huayuan couldn't pull down this face, but it was not a problem for Luo Yang, he was the leader of the administrative position, this little thing was a piece of cake for him, his eyes rolled, and he said to Chen Geng with a smile: "Chen Dong, Designer Pang is one of the most powerful designers in our Xifei, what requirements do you have for the aerodynamic shape of this aircraft, you can take this opportunity to communicate with Designer Pang." ”

"That's it......" Chen Geng frowned, looked at Pang Huayuan with suspicion, although he didn't say it, but the meaning was obvious: Can you do it?

Pang Huayuan, who finally persuaded himself to "bow his head for the sake of money", looked at Chen Geng's contemptuous gaze, and suddenly became angry again: "Comrade Chen Geng, what do you mean?" ”

Chen Geng's answer was beyond Pang Huayuan's expectations, he didn't object, but frowned and said, "Oh, I mean, our requirements are a bit high, Designer Pang, you ......"

The implication: It's not that I look down on you, it's that I think you really can't do it.

Pang Huayuan only felt a wave of anger rushing straight to Tianling Gai, and his face turned red!

This bastard looks down on me?! How dare this kid laugh at me?!

As one of the best designers in Xifei pneumatics, Pang Huayuan has his own pride, but he didn't expect to be despised by a little guy, how did Pang Huayuan accept it? Holding back the anger in his heart, Pang Huayuan gritted his teeth and said, "Oh? Then I want to listen, I don't know what ultra-difficult technical requirements Runhua Industrial has? Of course, if you ask this propeller plane to fly at supersonic speeds, then I really can't do it. ”

As a propeller aircraft designed during World War II, the A-1 "Sky Raider" attack aircraft was not designed in the direction of supersonic speed, let alone supersonic speed, and at the beginning of the design, the maximum speed of this aircraft was not considered to exceed 600 km/h.

Ignoring the ridicule in Pang Huayuan's words, Chen Geng said calmly: "Our requirements are very simple, first: sweep the wing ...... forward"

Before Chen Geng finished speaking, Pang Huayuan was already sluggish: "Forward sweep wings? ”

Not only Pang Huayuan was stunned, but several other designers of Xifei who were full of righteous indignation were also stunned: forward-swept wing technology?

Of course he knows what the forward-swept wing is, but Xifei doesn't have the relevant technology of the forward-swept wing at all, right?

With a sluggish face, Pang Huayuan's expression was a little evil: "What? You can't? ”

"......" Pang Huayuan puffed out his eyes, and wanted to say, "Who said Lao Tzu can't do it?!" But he really didn't have the courage to say it: Sweep Wing, this thing is too technically difficult.

However, the others were a little unconvinced, and said with a stiff neck: "Do you know how difficult the technique of the forward sweep wing is?" ”

"I know," Chen Geng looked at this guy with a stunned expression: "But aren't you flying west, look at the spicy cow x you just now, can't you even get a forward sweep wing?" ”

“……”

Pity this old man who spoke, he was almost suffocated to death by Chen Geng's words: We are ox x, it doesn't mean that we can conquer the forward sweeping wing technology, okay?!

You know it's so!

The reaction of Pang Huayuan and Xifei's people did not surprise Chen Geng: If you don't kill your prestige fiercely, you won't know that Lord Ma has three eyes.

Chen Geng, who was very calm on the surface, but in fact almost burst his belly with a smile, continued with a straight face: "I know that your level is limited, so I don't make any excessive requirements, you can calculate the angle of the forward sweep wing yourself, from 7 degrees to 15 degrees, as long as you meet our second requirement: the minimum stable flight and circling speed is about 120 km/h, well, the maximum speed does not need to exceed 600 km/h, if it is really difficult, it can be lowered to 550 km/h." ”

As soon as Chen Geng finished saying this, the expressions of a group of designers with eyes above the top of Xifei finally looked a lot better.

If you really want to make a propeller-powered fixed-wing aircraft fly at speeds between 120 km/h and 600 km/h, the forward-swept wing with a small forward-swept angle is indeed the best technical solution, and no other wing technology can do this except the forward-swept wing, not even the straight wing - the designers of Westward Flight, who have already begun to think about how to do it, have completely forgotten the question: why is the minimum stable flight and hovering speed so low at 120 km/h? For an airplane, it seems completely unnecessary. (To be continued.) )