blood feud

No one can guess Bai Shujie's mind, even the genius-like shrewd shipbuilder Bessa Schwartz, it is impossible to know what Bai Shujie is thinking in his heart.

In fact, it is worthless to put it bluntly, because Bai Shujie knows in his heart that the future enemies are not only Japanese devils, but also Americans, British, and Soviets.

In this world, there are no permanent friends, only permanent interests, and only permanent enemies!

After more than two years of contact with the outside world, Bai Shujie has basically figured out the development ideas of the major countries, and he is even more aware of the future technology and military trends.

With the advent of rockets and missiles, destroyers are inherently weak due to insufficient tonnage. In the era of technological explosions where weapons are updated "faster than turning the pages of a book", they are finally useless and can only be converted into fishing boats!

Although the battleship is bulky, its huge capacity is a huge treasure house.Once the heavy artillery is removed and the missiles are replaced, the battleship is still a giant in the sea.

Just like the former Soviet Union, as long as two super battleships carry a total of 128 Scud missiles, the Americans will retreat without fighting and take the initiative to send the huge aircraft carrier fleet to the shipbreaking workshop!

At present, the rockets of various countries in the world have not yet formed, and the missiles are still on the blueprints in the laboratory.

So what Bai Shujie has to do now is to continuously increase his speed, and go head-to-head with the guiding ideology of "firepower first" of the Little Devils Navy Fleet.

Bai Shujie has never had a good impression of destroyers.

Although the destroyer has speed, it only has speed left.Without enough firepower, you can't protect yourself at all.Apart from serving as shields for cruisers, aircraft carriers and battleships, putting them on the sea is basically a waste of resources.

Battleships, aircraft carriers, Bai Shujie is enough for now.What is needed is a cruiser with a certain self-protection capability and strong anti-aircraft firepower, making the attack planes and suicide planes of the little devils all useless.Then use its own speed advantage to grind to death the huge fleet of little devils.

Of course, without destroyers, submarines below the surface need to be considered as a special topic, so after Bai Shujie put the shipbuilding tycoon Bessa Schwartz in the Wonsan Port Shipyard, he himself had already slipped away.

Because of the anti-submarine issue, Bai Shujie thought of the helicopter upgrade research problem, the jet engine research problem, and the rocket engine basic research problem. In the final analysis, they are all engine problems.

The leader of the engine research team is the Jew Meng En, so Bai Shujie is looking for him recently.

It turned out that after Bai Shujie's "pointing out the maze", Meng En, an aero-engine expert, finally brought his genius thinking into full play, and gained a completely new understanding of aero-engines.

At the same time, it has a forward-looking consideration for the possible harm to the aircraft in terms of fluid mechanics and aerodynamics-this is the problem that will be encountered soon-sound barrier!

The last time Bai Shujie issued more than [-] weapons production and research orders in one go, Munn participated in the final research meeting on jet engines while researching helicopter upgrades.

The expert group found that when the flight speed reaches Mach number m0.9 air speed per hour, about 950 kilometers, the speed of the local airflow may reach the speed of sound to generate local shock waves, which will increase the aerodynamic resistance sharply.

(The speed of sound propagation in the air changes due to the influence of air temperature. In the international standard atmosphere, the speed of sound at sea level is 1227.6 kilometers per hour, and at an altitude of 11000 meters, it is 1065.6 kilometers per hour. )

What's more serious is that the shock wave can make the airflow flowing through the surface of the wing and the fuselage very turbulent, so that the aircraft shakes violently and the control is very difficult.

If the plane is in level flight at this time, the wings will sink and the nose will drop down; if the plane is climbing at this time, the fuselage will suddenly automatically pitch up, and then lose control and fall to the ground with a tail spin.

The so-called sound barrier means that when the speed of the aircraft is close to or equal to the speed of sound wave propagation, the sound waves caused by the aircraft engine cannot spread out, and the sound waves generated behind will be superimposed with the sound waves generated in front, and then form a resonance accumulation , which is the sound barrier.

Once the resonance occurs, the aircraft will immediately disintegrate in the air.

The reason is very simple, a bridge is very strong iron bridge, but a group of hundreds of soldiers walking across the bridge in unison, the resonance generated may shake the bridge.

Because of this, the military regulations stipulate that the troops are not allowed to walk in unison when passing the big iron bridge.

After achieving supersonic flight, a cone-shaped sound cone will be produced from the front end of the aircraft, which sounds like an explosion to onlookers, and is called a sonic boom or sonic boom.

Once the above phenomena appear, they will directly tear the aircraft into pieces.If no solution can be found, there is no other possibility except for the disintegration of the aircraft in the air. Bai Shujie's goal of "over 1000 kilometers per hour" cannot be realized.

In fact, the expert group misunderstood the true meaning of Bai Shujie. He does not want to produce supersonic aircraft now, but hopes to broaden everyone's horizons and make better use of the current turbojet engine.

So when he saw Bai Shujie coming again, Meng En accompanied him to the testing ground, and said with some embarrassment:

"Commander-in-Chief, we have already produced three turbojet engines and two demonstrators. However, after the wind tunnel tests during this period, the maximum speed we can achieve at present, of course, is the safe speed, it can only be 835- —975 km/h."

"I know!" Bai Shujie smiled slightly: "It's not that there is a problem with your engine, but that the fuselage material and welding and riveting methods are not strong enough. If you pursue the engine power without limit, the plane will disintegrate directly. I said Right?"

"That's right, that's what it means!" Munn nodded: "The two center-intake and swept-wing verification aircraft are all steel beam structures with aluminum-nickel alloy skins. But one of them is flying at 1025 km/h. At that time, the main steel beam will have deformation lines, which will be very dangerous if it is in the air."

"Our iron and steel plant's technical level is still too low, and it needs to be remodeled slowly." Bai Shujie nodded: "If the aircraft we developed ourselves is determined to have a maximum safe speed of 930 kilometers, can you produce it?"

"Of course it can be produced, but the output will not be very high, at least for now." Munn shook his head: "Pyongyang No. [-] Steel Plant, Mr. Horst has led the smelting experts to carry out technological transformation. The high Strong shear steel, probably enough to guarantee the production of two aircraft per month."

"You're wrong, Mr. Mengen!" Bai Shujie was delighted in his heart, but he chuckled: "I don't need you to mass-produce, but I hope you will continue to work hard, continuously improve the comprehensive performance of all aspects, and find effective channels to break through the sound barrier. It will not be too late to start production until the performance of the steel materials fully meets the requirements. But the engine can be reserved, and the fuselage is not in a hurry.”

The so-called proving ground is the Jiufengshan carrier-based aircraft pilot land training base.Now there are two more silver-white, compact new aircrafts, which have become one of the biggest attractions here.

He was busy directing the battle some time ago, so he never came over. This was the first time Bai Shujie saw the finished product verification machine.

Bai Shujie had to admire the rigorous style of the Jewish people. The various sizes of these two aircrafts were manufactured strictly according to the MiG-17 he "invented".

In other words, the greatest thing about the great Comrade Bai Shujie is that he created a shell by himself, and then let experts add things to it, and then satisfied a series of technical indicators he proposed, and then it became his own. patent.

Munn came to the front of the aircraft numbered 002 and said: "Commander-in-Chief, this is the third-generation turbojet engine we developed, with a bypass ratio of 0.5, a practical output of 2900 horsepower, and a maximum output of 3180 horsepower."

"These two verification aircraft are the dimensions you designed: 11.26 meters in length, 9.63 meters in wingspan, and 3.80 meters in height; empty weight is 3.81 tons, normal take-off weight is 5.37 tons, and maximum take-off weight is 6.35 tons."

"The test pilot controlled the speed within 950 kilometers, and the results have been obtained after repeated test flights. The practical ceiling is 14800 meters, the maximum altitude is 15600 meters, the normal range is 1950 kilometers, and the combat radius is 900 kilometers; the maximum transition range is 2620 kilometers. The maximum time in the air is 2 hours and 45 minutes”

"The latest early warning antenna system, friend-or-foe identification system, landing indicator, nose pitot, radio direction finder, radio altimeter and air walkie-talkie are installed. In order to record the effect of air combat, the mass-produced model is going to be equipped with a camera."

"The weapons and equipment of the verification model are: a 40mm cannon on the belly, and a chain of 48 shells; two 20mm cannons in a symmetrical layout on the wings, carrying two chains of 60 shells; in addition, when the auxiliary fuel tank is not carried, Two 520kg bombs can be carried under the two wings."

To be honest, Bai Shujie was very satisfied with this fighter, so he asked in a low voice, "Has the pressurization system of the airtight chamber, the design of the ejection seat and the parachute kept up? What's the evaluation of this fighter by the flight test team?"

Meng said with a smile: "They have no other opinions, but they have not yet adapted to high-speed take-off and high-speed landing. Especially the high-speed landing at a speed of more than 130 kilometers per hour made those boys nervous for a long time."

"Take your time!" Bai Shujie said with a smile: "Technical innovation will inevitably bring about a change in thinking and concept, which requires a process. If you consider the issue of landing safety, you can actually design a parachute, so that you can brake and decelerate. Umbrella double insurance."

"Oh, by the way, is there any progress in your research on corrosion-resistant materials? Otherwise, these aircraft will not be able to fight on aircraft carriers in the future. At the same time, you have to consider installing tail hooks now, and using arresting cables to match the landing gear. Strength requirements. If you have the opportunity, please urge, the research work on the steam ejection device must be strengthened."

After thinking for a while, Bai Shujie pointed to a B-17 Sky Fortress and a DC-3 transport plane without an engine and asked, "What's the result of your research on modifying two high-altitude and high-speed reconnaissance planes?"

Hearing this question, Munn became excited: "Commander-in-Chief, I am going to report to you the results of my team! According to your basic requirements of high speed and long range, our team removed the engines of these two aircrafts, and then Compared with our own engine, we finally found an optimal solution."

"The b-17 uses a triple 21-cylinder air-cooled radial engine structure. The dc-3 and the engine we are designing now are both double 14-cylinder air-cooled radial engines. It is actually very simple. We decided to add the radial cylinders It can reach 28 horsepower when it becomes a quadruple 3600-cylinder, and the limit power output can be close to 4000 horsepower. The maximum speed is 680 kilometers per hour, the economical cruising speed is 2400 kilometers per hour at an altitude of 450 meters, and the practical ceiling is 9300 meters."

"At the same time, we are not going to use the fuselages of these two aircrafts for direct transformation, so the two aircrafts you see do not have engines installed. Instead, we enlarge the B-17 and increase the proportion of composite materials such as fiberglass. Copy two fuselages with lighter structure."

"At present, the whole machine experiment has been completed, and the final assembly will be rolled off the assembly line soon. The total weight is only 3.4 tons. In this way, more detection instruments can be equipped. Not only cameras and darkrooms, but we are going to use video cameras and The newly manufactured visual image display device, also called a TV, allows the crew to see the ground situation very intuitively."

"However, because the main girder is made of high-strength shear-resistant steel, and 8 closed fuel tanks are connected in parallel, the maximum take-off weight is initially estimated to reach 60 tons, and the range exceeds 6500 kilometers. The fuel range is 8 kilometers, and the medium-range load is 4200 tons."

After all, what happens next, let's see the breakdown in the next chapter.