In addition, different materials also have different design requirements. After Sukhoi fine-tuned the design plan, this fighter, known as the "Swift" in the West, was known for its unimaginable speed, maneuverability, range and
The super strong fuselage protection made it one of the best piston single-engine fighters during World War II in this time and space.
The reason why China's aviation industry, which has a weak foundation, has become so successful is that, in addition to the introduction of a large number of foreign advanced equipment and outstanding talents, the huge advantages in material technology are also the main contributor. Epoxy resin-reinforced Paulownia wood appeared too late in history.
At that time, the alloys used in aircraft had transitioned from aluminum alloys to titanium alloys, and there were many types. xi
ng performance is excellent, and jet aircraft are too fast and have great resistance, so the requirements for the strength of the fuselage are much higher than that of piston aircraft. In particular, the high surface temperature caused by supersonic flight is an unsolvable problem. Epoxy resin
Although the flame resistance is quite good among various synthetic resins, if the temperature is too high, it will still soften and even catch fire.
Burnt. At the same time, there were many strong non-metallic materials such as carbon fiber as alternatives. In addition, the labor cost of reinforced Paulownia wood was high, so the value was very limited. However, before the outbreak of World War II, the use of this material
It can definitely stand out from the crowd, even the so-called "Igarashi metal" that created the myth of the Zero fighter in history - chromium
Nickel-manganese superhard aluminum alloy is also far inferior. When the strength is similar, the basic proportion of reinforced Paulownia wood is less than 0.15, and the overall proportion is less than 0.4. It is extremely light and has an overwhelming advantage, and with the current border area
Industrial basis. The cost of producing reinforced Paulownia wood is actually lower than that of chromium-nickel-manganese superhard aluminum alloy...
The powerful performance of the turbochargers produced in the border area is also directly related to the application of super-era high-temperature resistant materials, and these alloys are only modified from the later tank barrel steel materials provided by Hu Weidong, so it is conceivable that
, when the ammunition, gun barrels and armor materials in Hu Weidong's memory were used in their final
When it is suitable for the position, the effect will be amazing. Here is a single example. The Zhiyuan was severely damaged in the previous battle, and the front armor of the two rear main turrets was almost completely damaged. Therefore, Hu Weidong naturally gave it to him.
It has been replaced with a new one. The new turret armor is a complete change compared to the previous one...
It should be noted that even the ordinary homogeneous steel used in the penetration capability test of later generations. The penetration depth of later tank guns is often 700, 800 or even more millimeters. The strength, including hardness, is also the same as that of similar alloy steel during World War II.
2-3 times. In other words, it is possible for later tanks to hit the armored steel of World War II. It is possible to penetrate more than 2 meters... If super-era technologies such as composite armor are applied, the effect will be even greater.
It's unimaginably strong.
Having said that, due to the inconvenience of maintenance of composite armor, if it is damaged, it must be replaced directly with a new one. The tank is small, so it does not matter. For warships, the cost is too high. Therefore, it is difficult to apply on warships. And because of the required amount
It is too big. The weight of the armor of a warship's main turret is equivalent to the total weight of the armor of dozens or even hundreds of tanks. Therefore, special materials that are too expensive cannot be used. In addition, Hu Weidong does not want to greatly affect the speed and endurance of the Zhiyuan.
Therefore, only the thickness of the front armor of the turret was increased to 80mm, and the thickness of the armor on the top, sides and back was increased to 30mm. The ability to withstand armor-piercing bullets is equivalent to the effect of the 240mm thickness of the armor originally used by the Zhiyuan Note 1. The biggest weakness suddenly became
The advantage was gained, and the armor of other parts of the warship was also replaced one after another, and its overall defense capability immediately exceeded any type of heavy cruiser in the world at that time...
And because the ship was changed to a bulbous bow that is rarely used on warships in the world, the maximum speed of the Zhiyuan class increased instead of decreasing, reaching 36 knots. Only the cruising speed dropped Note 2. In addition, it must be mentioned that,
Hu Weidong removed the three seaplanes carried on the ship, which not only freed up the load and space, but also prevented the gunpowder ammunition device Note 3 and the spare gunpowder magazine below from being hit by the enemy during the battle.
The whole ship.
As for the role of water reconnaissance aircraft in correcting bombardment, it is no longer necessary with the installation of regular shipborne radars. With the technological level of this era, the enemy's detection distance is also limited in bad weather, so there is no need to worry too much about the weather.
Next. Shipborne radar can detect forty
Enemy ships kilometers away are enough to guide naval guns. You must know that unless the enemy ship is parked in a naval battle, it is possible to hit the enemy ship at least within 25 kilometers; and the air detection range is even more
It is 150 kilometers away. It is enough to detect incoming enemy planes in time.
Although the reconnaissance range is definitely larger than seaplanes, aircraft reconnaissance currently relies on visual inspection. The detection range of airborne radar during World War II is only a few kilometers. It is useful in air combat and at night. Direct visual inspection is not as good as searching the sea during the day...
., Therefore, when you discover the enemy, you are often discovered as well. However, seaplanes are very slow. If you are entangled by an enemy plane, you can't even think about getting rid of it. On the contrary, it is easy to expose the existence of your own warships...
Note 1: Comparing the performance of the armored steel used by the major naval powers in World War II, Britain's is the best, Germany's is slightly lower, but its structural steel is the best, so it is extremely anti-sinking. There is a certain gap between the United States and the two countries.
In addition to the two ships of Japan, Yamato Musashi, Japan concentrated the efforts of the whole country on
In addition to the armor performance of the products produced being similar to that of American ships, the armor used by other warships in Britain and Germany would be inferior products. Therefore, the strength of modern homogeneous armor steel is set in this book to be three times that of Japanese armor. The United States
2.5 times that of Britain and Germany, 2 times that of Britain and Germany...
Note 2: The bulbous bow can reduce wave-making resistance and increase the ship's speed by 1-2 knots without changing the power. However, the principle is quite complicated. A specific form can only be used at a certain small speed corresponding to it.
The effect is obvious within the range, and if the difference is large, it will even increase.
In terms of resistance, Hu Weidong chose to increase the maximum speed, so the cruising speed far away will naturally be affected. As for the design of the bulbous bow, there are currently six or seven world-class fluid mechanics experts in the border area. With their help, it will be no problem.
.....
Note 3: During World War II, aircraft projectiles were basically gunpowder projectiles. The advantage was that they were simple in structure, but they were also a major safety hazard for warships. In addition, the power of the projectiles was too small to support the flight of later jet aircraft.
All kinds of heavy aircraft, including those, were replaced by steam munitions after the war.