Fortunately, this Li-2 is a business jet for senior leaders to travel, and it has a work platform, and the daily tools of the designer comrade are in his briefcase, and people can't get up on the platform. Pen ~ fun ~ pavilion www.biquge.info

Lin Jun did not bother with Polikarpov's preliminary research, and the current designer comrades were as obsessed with the Su-27 as they were when they first saw the Su-27 with their own eyes in their previous life.

"Andrey, I calculated that if according to the dimensions of the aircraft you designed, it should not be a problem to fly driven by two engines with 800 kg of thrust, but the runway length may be unacceptable."

The designer's concern is normal, if according to the conditions on the data, there will be no more than 10 airports in the Union that can meet the requirements of the new testing machine!

"This is not the main problem yet, we can solve it with solid booster rockets. It was possible for the plane to reach altitude speeds at high altitudes, but I had to keep the weight of the airframe under tight control, and with the staggering fuel consumption of the two engines, there was not much structural weight left for the aircraft frame. "In ten minutes, Polikarpov said several major problems that could be encountered.

Here Lin Jun was impressed with him again: the problem that the Germans had tested for more than a year to figure out, and it took Polikarpov less than 15 minutes to see it, which should be thanks to Lin Jun's plagiarized aircraft drawings.

At 300 km/h and 600 km/h, the load on the fuselage is not at all the same, and the current reality is that the test machine on this drawing may be able to reach speeds well above 600 km/h. At such high speeds, the slightest movement of the pilot can put a huge load on the fuselage structure.

If you want to achieve the maneuverability that the current propeller fighter has, you have to make the load-bearing structure of the test aircraft extremely strong, which is obviously impossible!

The data shows that the fuel consumption of the jet engine on the test bench is amazing, and if you want to achieve a relatively practical endurance, you have to design a large enough fuel tank in the fuselage to store special aviation kerosene. Polikarpov had already incorporated the fuel tank into the overall load-bearing structure in his head, but the plane in his head could not have been very maneuverable.

Lin Jun had to cheer up the designer: "It's just a test plane, and besides, we estimate that the speed of this aircraft is not comparable to that of existing aircraft, and it doesn't need much maneuverability for the time being, as long as it can theoretically attack clumsy bombers, use it as an interceptor, kill the enemy with one blow, and don't do grappling." I estimate its speed in general what the existing fighters are catching up. ”

"If you say that, I'll have the bottom. The ability to attack bombers it should not be a problem, except that the endurance is up to 1000 km. ”

"One engine can consume more than 1,500 kilograms of fuel per hour, and I don't expect much range from the two combined. Old man, experimental, we still have to rely on propeller planes to win wars, it represents the future. ”

Lin Jun changed what Lavochkin "once" said to Stalin in 1947: if there is a war today, the La-11 should be put into production and immediately form combat effectiveness; If the war does not break out for a while and a half, the MiG-9 represents the future.

Only Hitler could have counted on new weapons that would have crossed the ages to win the war, and everything had to be done from a practical point of view.

Polikarpov took out a side view, pointed to the plane drawn by Lin Jun with a pencil and said: "If it is mainly used as an interceptor, then the firepower of this aircraft must be extremely powerful, and we can put the cannon system in the nose position." ”

"It's not a problem to cram in six 23mm cannons." Lin Jun said.

"The power of the 23mm cannon is not enough, I plan to use the 30mm cannon currently under development, which can be equipped with at least four."

Polikarpov likes bigger caliber guys, and that's the right way for the Mercedes-262: it can be armed with up to six MK108 30mm cannons, which is a nightmare for a heavy bomber like the B-17!

However, the MK108 30mm cannon was significantly different from the 30mm guns of later generations: low muzzle velocity and curved trajectory, which was also a practical and helpless move by Germany. However, the design direction of the Soviet cannon is different from that of the Germans, and it is also different from the Western countries of later generations, and the biggest feature is that it is powerful!

Lin Jun learned that the 30mm airborne cannon being developed was prepared for the Il-2 that was already in service, and was used against ground armored targets, but it could also be used in anti-aircraft combat. This type of aerial gun has a high rate of fire and muzzle velocity, and the power of the shell is more than twice that of a 23-mm shell.

To achieve such power, the weight of the new 30mm gun is bound to be one section higher than that of the MK108, and the recoil is inevitable, as Polikarpov said, with four guns.

Four doors should be enough, "If we do this, our Pe-8 will not be able to stand a salvo from it." ”

Lin Jun can imagine what the result of four 30mm guns firing a salvo at a bomber will be!

If the artillery was not enough, the Soviets still had air-to-air rockets -- the eight- and fifteen-tube low-drag 76-mm rocket launchers and the attached folding wing rockets had been finalized by the state, which obviously greatly increased the unit bomb load, and the rockets with different warheads could be used for both ground and air attacks.

If desired, the new jet can also hook up two disposable eight-barrel launch nests, but at a reduced maximum speed.

At this time, the captain reported that the plane was about to arrive at Gorky airport.

Lin Jun was greeted by 32-year-old Alhep Mikhailovich Rurika, the chief designer of the institute.

After a period of greetings, Lin Jun and his entourage got into the car to the research institute, and the convoy did not enter the city, but drove farther to the suburbs.

It is a complex surrounded by birch forests on all sides, covering an extremely large area, similar to the central airfield, surrounded by a wall, and if you look at it from the air, it is an ordinary military base, with infantry units being trained, which is not special at all.

But this is the most important Soviet research base for new engines.

The convoy entered the core area after passing through three guards, and the first to the guard posts were the soldiers of the infantry unit, which was just for example. The second guard post is very strict, and people from the outer troops cannot enter, and inside is the residential area of researchers; The third guard is responsible for the personnel of the Ministry of Internal Affairs, and after this post is the research area.

Lin Jun was not as anxious as he was at the bomber research base, so he went to the conference room first to listen to the report of the research institute personnel.

Lin Jun knew the general situation, what he didn't know was just some details, but Bori Karpov asked a lot of questions.

Now there is a big question before everyone's eyes - where are the planes made?!

According to Rurika, the new engines are very demanding on the conditions of the airfield, it is necessary to use a high-quality reinforced concrete runway, and the length of the runway may significantly exceed the length required by existing fighters.

Fortunately, there are aircraft manufacturing bases around Gorky that can meet these conditions, and it is not very difficult, so just do a good job of secrecy.

After more than an hour of meeting, Lin Jun spoke: "Comrades, it's still early, shouldn't the institute show a new engine?" ”

"Yes, Comrade Marshal. The engine is already on the test bench and ready for power demonstration. Rurica said.

Everyone in the air force system understands Lin Jun's temper, he likes to do everything in a down-to-earth manner, and he never likes to waste time, so the institute was ready after learning the news that he was coming to inspect.

At this time, an officer of the Ministry of Internal Affairs walked into the conference room, saluted Lin Jun, and said: "Comrade Marshal, we have just received a call from Moscow, Comrade Stalin needs you to call back. ”

Lin Jun nodded and motioned for the officer to lead the way, "Comrades, wait for me for a while." ”

"Andrey, how is the inspection going?" Stalin's voice was heard after the phone was connected.

"The situation is good, Comrade Stalin. The results of various research are outstanding, especially the performance of the new bomber is very good, and I will go to see the power test of the new aero engine in a moment. ”

"Pay attention to your body, can you go on a long journey?"

"Yes, Comrade Stalin, it's no problem to go to Chukotka." Lin Jun said in his mouth, thinking in his heart, "What does Stalin want me to do?" ”

"There is basically no situation in the west now, I want you to go to Novosibirsk, where the work is very fast, I need you to go and see it and get a detailed report back. Alexander has just learned that the Americans have also been given theories in this area, and although it should not have begun yet, it needs to be brought to our attention. ”

"I see, Comrade Stalin. I'll get to know the situation in detail. ”

"You decide whether to train or plane, you have the right to deploy."

"It's still a plane, it's faster, I'll leave tomorrow morning."

"Again, pay attention to your physical condition and don't hold on."

Lin Jun's heart warmed, "Yes, Comrade Stalin." ”

Back in the conference room, everyone was still waiting for him: "Go, comrades, go and see the results of your research." (To be continued, if you want to know what will happen next, please log in to the www.qidian.com, more chapters, support the author, support genuine reading!) (To be continued.) )