The accurate calculation results of the experts made all the officers of the Admiralty breathe a sigh of relief, and at this moment, they are more concerned about the fleet returning from Britain, as long as the fleet returning from Britain can block the escape route of the Cheng Department, this fleet that has caused huge losses to the United States will be annihilated by them, which is not a big or small result for the United States.

Just when the Americans YY, Cheng Bu strengthened the attack on the dam of the Panama Canal, with armor-piercing bullets, crazy attacks, all of them are tungsten core armor-piercing bullets, for all of them are reinforced concrete dam attack power is very amazing, plus Cheng Bu's hit rate is extremely high, right is a fixed object, it took 2 hours, on the dam, formed a series of caves, almost 20 meters deep, which is a huge for a building, irreparable holes, replaced by ordinary buildings, Such an attack has long been unbearable, and for a huge dam, this is nothing, and it is difficult to even weaken the dam.

The targets of Chengbu's attack on the dam are at the bottom of the dam, the bottom of the dam is the strongest object of a dam, the lowest level of the dam, the distance in a straight line is more than 100 meters, the huge volume, to the dam is strong enough, this is also the result of the evaluation of American experts, although in just 2 hours, with the help of the power of armor-piercing bullets and the aiming command system, at the bottom of the dam, caused at least 8 huge caves, which has a huge impact on the structure of the dam. It is only a minimal, from intact to 20 meters, in this process, the armor-piercing bullet shows great power, but with the increase in depth, if it continues, even if the intensity of the attack is strengthened, the effect is minimal, which is also the fundamental reason for the previous decision made by the structural experts of the United States.

The Chinese side has long been aware of this result, and they also know very well that only by virtue of armor-piercing bullets, it is impossible to destroy the entire dam at all, and with the continuation of the attack, the damage to the dam is also decreasing.

This point, not only the Americans know, China's structural experts, is also clear, the cavern formed by the armor-piercing projectile is not regular, sometimes, the attack of the shell, can not form the best effect, the final attack power may only be a few tenths of the previous one, in the face of such a situation, at this time, on the battleship, it is another look, the warhead has been replaced again, there is no choice of armor-piercing projectile, because the armor-piercing bullet has been difficult to appear effect, 20 meters of God's cave to enter from a certain angle, This is very difficult, most of them are hit on the side, and even wipe the irregular area inside, for the armor-piercing projectile, expand the cave, from the current radius of about 10 meters, expand to 20 meters, 30 meters can be hit again, but the entire dam is more than 100 meters, always can not always be like this, for the width of up to 300 meters, the thickness of 100 meters, a 20-meter diameter of the cave, can not destroy the dam, if you want to form a 100-meter radius, 100 meters deep cave on the dam, That's impossible, it's possible to have dozens of more, which is also the result of the calculations of those experts, 4 fantasy class, will cause huge damage to the dam, but under the premise that the main structure is fine, the dam can be used and repaired to a certain extent, as long as it is not in the process of repair, it can encounter an earthquake and tsunami of more than 8 magnitude.

Earthquakes and tsunamis are definitely a small probability problem, and they really encountered it, even if the United States is unlucky, this is also a point that the structural experts in the United States believe, and the structural experts in the United States can calculate this, and the Chinese side, the experts who studied in Germany, of course, can also calculate this, although the dam is a little more difficult to construct, but in terms of design, there is no problem at all, the vast majority of dams in the world are the same, a trapezoidal structure, to block water and other geological disasters.

Since there is no way to deal with it, how can it still come, just to hurt the dam, Cheng Biguang has no need to risk coming, the purpose of his coming is to destroy the dam, at least let the Panama Canal, which has no way to play a role for more than 6 months, and lay a good opportunity for China's Pacific strategy.

After spending a few hours, after completing the huge cavern in the dam, the shells were replaced by incendiary bombs, incendiary bombs, a special ammunition developed by China, with a mixture of petroleum and rubber as the main body, with a powerful combustion effect, this burning temperature is as high as more than 1500 degrees, even steel can burn, not to mention reinforced concrete structures. The incendiary bombs are attacked in 12 rounds in turn, requiring white phosphorus and condensate to be attached to the inner side of the dam, and when a large number of flames and combustibles are burned on the inner side of the dam, the relatively confined space will continue to burn inward.

The structure of reinforced concrete is not impossible to burn, as long as the temperature reaches a certain level, it will also become fuel, and continue to burn, as long as it is fuel, if the combustion continues, it can destroy the structure of the dam, and then produce a sustained effect, although the incendiary bomb, in the one-time effect, can not be compared with the armor-piercing bullet, but the continuous effect is definitely above the armor-piercing bullet.

This is the Chinese side, find the only way to destroy the dam, although the attack efficiency is slow, but for China, this is the only option, the next attack method, at least 3 days, without any threatening warships arrived under the premise, Cheng Biguang has enough time, slowly attack the dam, the armor-piercing shell is the best reinforced concrete structure for the attack, for the dam, it is impossible to attack this huge dam at all, but burning, an incendiary bomb attack, It is enough to cause more than 30 minutes of high-intensity burning people, and then with the help of accurate shooting, just keep adding fuel, every two hours, with high-explosive shells, a large number of explosives sent into the vibration, will make this cave bigger and bigger, and then use armor-piercing bullets for a certain time, in this way, the efficiency is much stronger than directly using armor-piercing bullets.

The fantasy class is very powerful, and it is also made in China, the most powerful warship in the world, with the help of various special ammunition, he even has a certain extent, the destructive power is amazing, Wall Street was destroyed, it clearly shows this, but for the greatest building of mankind on land, if you don't use some means, it won't work at all, 300 meters wide, 100 meters thick, 100 meters high huge reinforced concrete structure, this is the largest creation made by human beings, what he resists, It's not the fire and artillery that attack, it's the power of nature.

On both sides of the Panama Canal, the sea level difference between the Atlantic Ocean and the Pacific Ocean is as high as 26 meters, the Panama Canal can not balance this height, so it can only form a high flat lake in the center, so that the height on both sides reaches a certain degree, enough to accommodate a certain specification of ships to come in, the first thing this dam has to resist is the huge pressure, at least 30 meters high The pressure brought by the huge amount of water, at the same time, the natural storms generated by the Atlantic Ocean and the Pacific Ocean will also affect the Panama Canal, The dam also has to hold back these storms, and as for the ebb and flow of the tide, this is a natural phenomenon, and this must be resisted.

Because of this, the strength of the dam is far more than the ordinary level, let alone four fantasy classes, with this strength, a few more should be no problem, in 2 hours, the attack of the battleship is a little lax, the frequency of the attack is at least 10 times lower than the previous 2 hours, which itself Panama's defenders are a little happy, but under the high-explosive bombs, the sudden increase in the cave, they were shocked, obviously 2 hours, the attack power did not increase, It has even slowed down by more than 10 times, but the destructive power is increasing, and although it is not visible how much is inside, the gap in the dam has increased from 10 meters to 30 meters, and there is a tendency to get bigger and bigger.

What the hell is going on, although at present, the attack on the dam is still going on unhurriedly, but every shell falls, like an alarm bell ringing in the heart of the commander of Panama, I don't know why, the efficiency of the attack will be so good, but the commander immediately telegraphed, informed the headquarters of the situation, the naval command did not expect this to be the case at all, according to the schedule given by the structural engineer before, this is probably the result of 1 day later, no way, let the experts continue to consider, Through the telegram, the otaku did not let the commander observe carefully, after all, these shells, the type can be seen, and the pattern of the opponent's attack is also clear, so that it is convenient for the rear to calculate.

The communication between the cable and telegraph was still very convenient, and before it was cut off, the communication between the Panama Canal and the headquarters was unimpeded, and in accordance with the requirements of the navy, the commander reported back the basic data of all aspects. At this moment, the experts were also a little dumbfounded, they had not touched the incendiary bomb, but in the attack in New York, the incendiary bomb played a considerable role, and the data on the incendiary bomb was relatively perfect, but only the destructive power, there was no key things such as temperature, but it could burn steel, so the core temperature was at least above 1600 degrees, and when this vague data came out, everyone was stunned. With the help of mechanical computers, more than 150 experts went through 3 hours of calculations, and the experts were tired, and finally came up with a data, if such an attack lasted for 36 hours, the dam could not be guaranteed, that is, the dam had the possibility of being breached. (To be continued.) )