Is such an expensive aircraft bought back and used as a civil aircraft? Boss, how much money do you have to withstand such a toss? Primakov's eyes widened, and his expression ...... It can't be described, it's like seeing a rich man who doesn't know how to spend it when he has a lot of money, and finally decides to burn money for heating, or a nouveau riche.

In other words, playing with airplanes, the speed of burning money is really similar to burning money to keep warm.

"There will be no more than 20 passengers on the Tu-134 and no more than 50 passengers on the Il-62," Lin Hongfei glanced at Primakov, "But, Lao Pu, you have to remember that the space in the crew compartment must not be small, tell your friends that they can take over this modification business, then everything is OK, if they can't take it, then they will go to someone else to sell their second-hand aircraft." ”

After thinking about it, Lin Hongfei added, "Also, tell them to remove everything in the cockpit, seats, toilets, etc., and keep the avionics system...... In a word, it is one more space system than the green plane. ”

The so-called green aircraft is an empty shell sub-aircraft that only has an engine and a basic flight navigation and instrument system, and there are no Doppler weather radars and avionics systems with different functions that are common on civil aircraft, only the most basic avionics equipment to meet the flight, and this may be a second-hand thing that is temporarily borrowed.

Primakov was not stupid, he roughly understood what his boss was going to do, and his eyes widened in disbelief, "Boss, are you going to convert this plane into a private jet?" ”

"What's the problem?" Lin Hongfei asked rhetorically.

"I didn't ...... Nothing ......" Primakov swallowed, and said nothing...... Converting an aircraft of the Tu-134 class into a business jet? As long as you do a good job of sound insulation and comfort, compared with Figure 134, what is the boss's Gulfstream 2? As for Il-62? It was a small Boeing-747. Boss, what a ...... Great boldness.

"Okay, that's it," Lin Hongfei turned around in a dashing manner, not giving Primakov a chance to bargain at all, "tell your partners in Russia that they only have three months to complete these tasks." ”

Looking at the dashing back of his boss, Primakov opened his mouth to say something, but then closed his mouth again: six planes left there for the wind and rain. Together with a pile of materials that were no longer of much use to the Ilyushin Design Bureau and the Tupolev Design Bureau, in exchange for 16 million dollars, those people could already secretly laugh, the only thing that worried him was that the initial design and construction of the modification work would be completed in three months. Is there time to come?

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Primakov sent back good news to himself, and the working group represented by Chaprekin also preliminarily completed the work assigned to them. rushed over to report the good news to Lin Hongfei.

"Are you really done?" Although this task was assigned to Chaprekin by himself. But when Chaprekin told Lin Hongfei the news, Lin Hongfei was still a little surprised, "You really controlled the cost to 200,000?" ”

"The overall cost is 180,000!" Chaprekin raised a finger, a pleated rosacea nose and a red face full of pride, "Boss, I said. It's probably the cheapest light transport aircraft in the world, but in terms of value for money, I don't think there's another aircraft in the world that can compare to us. ”

"180,000?!"

Lin Hongfei was really shocked, he really couldn't imagine it. How did a light transport aircraft that can carry 9 people manage to control the cost to 180,000, and couldn't help but mutter, "How did you do it?" ”

"Quite simply, after technical demonstration, we found that as a low-speed patrol aircraft with a maximum flight speed of no more than 200 kilometers, it is completely wasteful to use those expensive aviation materials, and ordinary civilian materials used in automobiles can also meet the use requirements."

"So you used a lot of civilian-grade materials to build this plane?"

"Yes," Chaprekin nodded, his face full of pride, "After argumentation, we think that the power delta wing of the fully enclosed cockpit in use designed by the boss can fully meet the design requirements, and we are making improvements on the basis of that power delta wing, the semi-monocoque delta wing we use ordinary galvanized steel pipes with anti-rust treatment, and the result is welded and formed, and the surface skin is made of galvanized iron sheets that have also been treated with anti-rust treatment......"

"Wait! You didn't use aluminum skin? Lin Hongfei was frightened by Chapregin's words: For such a large delta wing, they didn't use lightweight aluminum, but used heavy steel pipe frame iron skin? Crazy, right?

"The use of aluminum is too expensive, and it is completely unnecessary," Chaprekin said disappreckly, "We use galvanized iron sheet, and brush a layer of anti-rust paint on the galvanized iron sheet, as long as the daily maintenance is done, it can ensure that it will not rust within 15 years, but compared with using aluminum skin, such a semi-monocoque delta wing alone can save 70%!" In order to save costs, we did not use the welding process, but directly fixed the iron skin to the steel pipe skeleton with rivets......"

Lin Hongfei was completely speechless, this guy Chaprekin was not ordinary crazy, and it took a long time before he asked. "But then the weight of the whole body will go up a lot, right? Can the previous engine be driven? ”

"That's right, that's the biggest problem," Chaprekin nodded, looking at Lin Hongfei with an expression of "you are a big expert", "so after calculations, we increased the wing area of the delta wing by 30%, and at the same time used a more powerful engine, this problem was solved, the only problem was a 30% increase in fuel consumption, but we don't think it's a problem." ”

"......" Lin Hongfei deeply realized the simple and crude problem solving ideas when the designers of the Soviet Union designed the MiG-25: the maximum flight speed of the MiG-25 aircraft should exceed Mach 3, the thermal barrier problem is serious, and the traditional aluminum can no longer be used, what should I do?

Easy to do! They abandoned aerospace aluminum, which has a density of 2.81, and used special stainless steel with a density of 7.8;

The heavy body poses a severe test to the engine, how to solve the problem of a high-thrust engine? Easy to do! Russian aero-engine designers took inspiration from the airframe designers, and the engine also used a large number of high-temperature resistant special alloy steel, which became a billet again;

The fuselage and engine were solved, but the Soviet Air Force also required the MiG-25 to have a pair of eyes capable of seeing far enough, so what to do? Easy to do! The Soviet designers who were not mature enough for integrated circuits waved their hands: with tubes! As a result, an unprecedented powerful magnetron and an unprecedentedly powerful radar designed based on this magnetron were born;

So, to some extent, the MiG-25 is a lump of steel billets weighing dozens of tons flying in the sky plus an oversized microwave oven. Chapregin, who is well versed in the idea of "simple and crude" problem solving, successfully used the problem solving idea of the former Soviet Union on this light patrol aircraft, of course, the effect is good, better than Lin Hongfei expected...... As for the 30% more fuel consumption, well, civil gasoline is much cheaper than aviation gasoline and aviation kerosene, isn't it, 30% more is nothing.

"Take me to see the prototype you've made!" Lin Hongfei patted Chapregin on the shoulder and only said one word.

……………………

The plane in front of me that I don't know if it should be called an airplane is indeed similar to the power delta wing designed by Lin Hongfei before, the only difference is that from the appearance, the originally huge delta wing on the back of this cargo is getting bigger and bigger, and the huge star-shaped air-cooled nine-cylinder engine with four blades located at the rear of the crew compartment is particularly eye-catching, especially the thing that is similar to the air conditioning outlet regulator of the car, which can effectively control the deflection direction of the airflow and further improve the maneuverability. It's a very simple but practical thing.

"Did you test the flight?" Lin Hongfei turned his head and asked Chapregin, "How's the stability?" What about the carrying capacity? ”

"Of course, the test flight worked out great, very good!" Chaprekin nodded excitedly, "After a comprehensive comparison, we believe that the flight stability and air maneuverability of this aircraft are better than the prototype designed by Mr. Lin, and we have optimized many places......

Chapregin babbled to Lin Hongfei about what improvements his team had made to this plane, and Lin Hongfei blushed slightly: Why did these old hairy people suffer such a big loss, and they didn't know how to be tactful and pat the boss's ass?

Of course, it's impossible to be really angry, Lin Hongfei knows very well that with his half-baked design level, it is already a great sense of accomplishment to be able to make such a big guy fly, optimize this guy? That's just too hard for yourself, and I'm not a aircraft designer.

On the contrary, the more he talked, the more excited Chaprekin was very crazy, and the more he talked, the more excited he became, and when he said it, he simply gave a loud whistle, "Hey! Drive the tractor over! ”

Tractor? Lin Hongfei looked at this huge guy again and nodded: Is it a bit heavy, starting the engine, the huge wind from the propeller will blow the back into a mess, or it is better to use a tractor to drag it out.

Said to be a trailer, in fact, is a single-row seat electric small pickup, this kind of car in Guqi Province Industrial Manufacturing Co., Ltd. manufactured a lot, specially used to do the company's various workshops between the transport of goods only, very convenient, the motor high torque output characteristics to ensure that although this thing does not run fast, but full of strength.

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PS: The brothers are really powerful, in one day, we killed 120 in the monthly ticket list, and we didn't say anything, only tomorrow the fourth watch to thank the brothers for their support (to be continued......)