No one can guess Bai Shujie's thoughts, even the genius-like shrewd shipbuilder Besa Schwartz can't know what Bai Shujie is thinking.

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

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

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

With the advent of rockets and missiles, destroyers are congenitally weak due to insufficient tonnage, and in the era of technological explosion when weapons are updated "faster than turning books", they are of no use in the end, and can only be converted into fishing boats!

Although the battleship is bulky, its huge capacity is a huge treasure trove. Once the heavy artillery was removed and the missiles were replaced, the battleship remained a giant in the sea.

Just like the former Soviet Union, as long as there were two super battleships, carrying a total of 128 Scud missiles, the Americans retreated without a fight and took the initiative to send the huge aircraft carrier fleet into the shipbreaking workshop!

At present, the rockets of various countries in the world have not yet taken shape, and the missiles are still on the drawings in the real room.

Therefore, what Bai Shujie has to do now is to continuously improve the speed and go toe-to-toe with the guiding ideology of the "firepower first" of the little devil naval fleet.

Bai Shujie has never had a good impression of destroyers.

Although the destroyer has speed, it only has speed. Without enough firepower, you can't protect yourself at all. In addition to using cruisers, aircraft carriers and battleships as shields on the sea, it is basically a waste of resources.

Battleships, aircraft carriers, Bai Shujie is enough at the moment. What is needed is a cruiser with a certain degree of self-protection and strong anti-aircraft firepower, so that the attack aircraft and suicide planes of the little devils are all useless. Then use your speed advantage to grind down the huge fleet of little devils.

Of course, after there are no destroyers, submarines below the surface need to be considered as a topic, so after Bai Shujie pressed the shipbuilding predator Besa Schwartz to the Wonsan Port Shipyard, he himself had already slipped away.

Because he thought of the problem of anti-submarine, Bai Shujie thought of the research problem of helicopter upgrading, the problem of tackling key problems of jet engines, and the basic research problems of rocket engines, all of which were engine problems in the final analysis.

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 "guidance", Mengen, an aero engine expert, finally gave full play to his genius thinking and had a world-changing understanding of aero engines.

At the same time, there is a forward-looking consideration of the dangers that may be caused to the aircraft in terms of fluid science and aerodynamics - this is the problem that will be encountered soon - the sound barrier!

The last time Bai Shujie issued orders for the production and research of more than twenty weapons 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 and about 950 kilometers per hour, the speed of the local air flow may reach the speed of sound and produce local shock waves, which will increase the aerodynamic drag sharply.

(The speed at which sound travels through the air varies depending on the temperature of the air.) Under international standard atmospheric conditions, the speed of sound at sea level is 1,227.6 kilometers per hour, and at an altitude of 11,000 meters, it is 1,065.6 kilometers per hour. To make matters worse, shock waves can cause the airflow through the wings and fuselage surfaces to become very disordered, making the aircraft shake violently and make it very difficult to maneuver.

If the plane is flying at level at this time, the wings will sink and the nose will be planted down; If the plane is climbing at this time, the fuselage will suddenly automatically rise up, and then lose control and cause a tailspin and fall to the ground.

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

And as soon as the resonance appears, the plane will immediately disintegrate in the air.

Quite simply, a large iron bridge is a sturdy bridge, but a group of hundreds of soldiers marching in unison from the bridge can cause the resonance to collapse the bridge.

Because of this, military regulations stipulate that the army is not allowed to walk in unison through the large iron bridge.

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

Once these above phenomena appear, they will directly tear the aircraft to pieces. If a solution cannot be found, there is no other possibility than the disintegration of the plane in the air, and the goal of "exceeding 1,000 kilometers per hour" proposed by Bai Shujie cannot be achieved.

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

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

"Commander-in-Chief, we have already produced three turbojet engines, as well as two demonstrators. However, after this period of wind tunnel testing, the maximum speed we can achieve at present, of course, the safe speed, 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 strength of the fuselage materials and welding and riveting methods is not strong enough." If the engine power is pursued without limits, the aircraft will simply disintegrate. Am I right? ”

"Yes, that's what it means!" Munn nodded: "The two central air intakes and swept wing verification planes are all steel beam structures with aluminum-nickel alloy skin. However, at 1025 km/h, one of them had deformation patterns on the main steel beams, which is very dangerous if it is in the air. ”

"Our steel plant is still too technically poor and needs to be slowly transformed." Bai Shujie nodded: "If the aircraft we developed ourselves is determined to have a maximum safe speed of 930 kilometers, will you be able to produce it?" ”

"Of course it can be produced, but it won't be very high, at least for now." Munn shook his head: "At the No. 1 Steel Plant in Pyongyang, Mr. Horst has led the smelting experts to carry out technological transformation. We currently produce high-strength shear-resistant steel, which is about enough to produce two aircraft per month. ”

"You are wrong, Mr. Munn!" Bai Shujie was secretly happy in his heart, but he smiled: "I don't need you to mass produce, but I hope that you will continue to work hard, continuously improve the comprehensive performance in all aspects, and find an effective channel to break through the sound barrier." When the properties of the steel fully meet the requirements, it is not too late to start production. However, the engine can have some reserves, and the fuselage is not in a hurry. ”

The so-called test site is the land training base for carrier-based aircraft pilots in Jiufeng Mountain. Now there are two new silver-white planes with a small size, which are one of the biggest attractions here.

Some time ago, he was busy commanding the battle, and he never came, and 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, and the various sizes of these two planes were made in strict accordance with the MiG-17 that he "invented".

In other words, the greatest thing about the great Comrade Bai Shujie is that he made a shell by himself, and then asked the experts to add things to it, and then met a series of technical indicators put forward by him, and then it became his patent.

Mundne came to the plane number 002 and said: "Commander-in-chief, this is the third generation of turbojet engine we have developed, with a bypass ratio of 0.5, a practical output of 2,900 horsepower, and a maximum output of 3,180 horsepower. ”

"These two demonstrators are the dimensions you designed: 11.26 meters long, 9.63 meters wingspan, 3.80 meters high, 3.81 tons empty, 5.37 tons normal take-off weight, and 6.35 tons maximum take-off weight."

"The test pilots controlled the speed within 950 kilometers, and after repeated test flights, the results have already been obtained. The practical ceiling is 14,800 meters, the maximum height is 15,600 meters, the ordinary range is 1,950 kilometers, and the combat radius is 900 kilometers; The maximum transfer range is 2620 km, and the maximum airtime with auxiliary fuel tanks is 2 hours and 45 minutes."

"The latest early warning antenna system, identification of friend or foe, landing indicator, nose airspeed tube, radio direction finder, radio altimeter and intercom are installed. In order to record the effects of air combat, a camera was prepared for the production model. ”

"The armament of the verified model is: a 40mm cannon in the belly and a chain of 48 shells; The wings are symmetrically arranged with two 20mm guns, carrying two chains of 60-round shells; In addition, it was possible to carry two 520-kilogram bombs under both wings without carrying a drop tank. ”

To be honest, Bai Shujie was very satisfied with this fighter in his heart, so he asked in a low voice: "Have the pressurization system, ejection chair and parachute design of the sealed cabin kept up?" What did the test flight team say about this fighter? ”

Munn said with a smile: "They have no other opinions, they just haven't 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 lads nervous for a long time. ”

"Take your time!" Bai Shujie said with a smile: "Technological innovation will inevitably bring about a change in ideology, which requires a process. If you take into account the safety of landing, in fact, you can also design a parachute, so that you can achieve double insurance of brakes and parachutes. ”

"Oh, by the way, is there any progress in the corrosion-resistant materials you are researching? Otherwise, none of these aircraft will be able to fight on aircraft carriers in the future. At the same time, you need to consider the installation of the tail hook now, as well as the strength requirements for the landing gear using the arresting cable. If you have the opportunity, urge me to intensify the research work on steam catapult devices. ”

After thinking about it, Bai Shujie pointed to a B-17 Flying Fortress and DC-3 transport plane without engines and asked: "What are the results of your research on the modification of two high-altitude and high-speed reconnaissance planes?" ”

Hearing this, Munn became excited: "Commander-in-chief, I was about to report to you on the results of my group!" Based on your basic requirements for high speed and long range, our team removed the engines of these two aircraft and compared them with our own engines, and finally found the best solution. ”

"The B-17 uses a triple 21-cylinder air-cooled star engine structure, and the DC-3 and the engine we are designing now are both two-cylinder 14-cylinder air-cooled star engines. In fact, it is very simple, we decided to increase the star cylinder by one weight, into a quadruple 28 cylinders, which can reach 3600 horsepower, and the ultimate power output can be close to 4000 horsepower. The maximum speed is 680 kilometers per hour, the economic cruising speed of 2400 meters is 450 kilometers per hour, and the practical ceiling is 9300 meters. ”

"At the same time, we weren't going to take the fuselage of these two planes and modify them directly, so the two planes you see don't have engines installed. Instead, the B-17 was enlarged, and then the proportion of composite materials such as FRP was increased to imitate the lighter fuselage of the two planes. ”

"At present, the whole machine has been completed, and it will be assembled and rolled off the assembly line soon, with a total weight of only 3.4 tons. In this way, it can be equipped with a richer range of detection instruments. Not only are we equipped with cameras and darkrooms, but we are going to use video cameras and newly manufactured visual image displays, also called televisions, that will allow the crew to see the ground very intuitively. ”

However, because the main beam is made of high-strength shear steel and eight closed fuel tanks are connected in parallel, the maximum take-off weight is initially estimated to reach 60 tons, and the range is more than 6,500 kilometers. The load is divided into a long-range load of 8 tons for a full fuel tank, a range of 4,200 kilometers for two-thirds of the fuel tank, and a medium-range load of 16 tons. ”

After all, what happens next, let's see how it will be broken down next time.