But this made Japanese aircraft experience a brief "invincible" at the beginning of 1938. At the same time, it also made Japanese aircraft design enter a dead end. Low engine power makes the aircraft light in weight, which leads to insufficient structural strength, and insufficient structural strength makes it impossible to equip more powerful weapon systems. At this point, in fact, the biggest shortcoming of the Zero fighter is that there is no way to improve this kind of aircraft! If the high-power engine is replaced and the flying speed of the zero type aircraft is increased, the aircraft will disintegrate in the air due to insufficient strength. Therefore, the structural design of the zero type aircraft needs to be changed when the engine is replaced. Changing the structural design will lead to weight change, part of the increased engine power will be wasted, and the increase of fuel consumption will lead to the decrease of aircraft range. On the other hand: changing the engine, changing the structure, deforming the performance curve... What's the difference between this and redesigning an aircraft? Therefore, it is very difficult for a Zero fighter to be equipped with a more powerful weapon system. If the recoil force becomes greater, the structural strength of the Zero fighter will have problems. Therefore, the pilots of the Japanese air force can only endure the curved trajectory from beginning to end, and can only accept that the range of their own 20 mm caliber machine gun is not as good as that of the other 12 mm caliber machine gun. The fact of a 7mm machine gun. Sato is driving a plane and biting the tail of an American fighter. His opponent seems to know the shortcoming of the Zero fighter's insufficient rolling ability and is using this action to get rid of Sato's entanglement. However, Sato's flying technology is very strong. He is carefully driving his own plane and always biting his opponent in the extreme distance. All of a sudden, he felt the danger, which was a long-term battle in the first line of the instinct. So he quickly changed his flight state and quickly began the climb action that the Zero fighter is good at. Just as he suddenly pulled up the plane, a row of bullets swept right in front of him, so scared that he almost opened the canopy and parachuted“ Baga Sato yelled a curse, flying the plane to high-speed climb to get rid of the entanglement of the flanking U.S. aircraft. At this time, he found that the two U.S. aircraft used a strange hovering mode, which was able to find the opportunity to open fire in the rolling action that the Zero fighter was not good at, and shot down the pursuit Zero fighter. Sato was lucky because he changed his flying posture at the most dangerous time, but the other Japanese pilots in the fighter formation were not so lucky. After he managed to get rid of the pursuit of American planes, he found that three of his planes had been shot down by the US Army“ fuck! Ah! Attack! Fight to the death In anger, Sato's eyebrows stand up, pushes the control lever of the plane hard, flies the plane to fight again, returns to the battle circle, looks for American fighters everywhere, and fires, hoping to avenge his familiar subordinates. However, the speed of American aircraft has improved, which makes him very unaccustomed, unable to find a suitable attack method for a time At the same time, an American combat staff officer excitedly went to the rear of general Spruance, commander of the aircraft carrier fleet, and stood at attention to salute: "general! Major hawk's fighter unit has sent back the news that they are fighting with the Japanese and have already shot down five fighters! " Spruance's eyes brightened, then he turned back to take the report, looked through it carefully, and then with a smile on his face, he handed the information back to the officer who sent the report: "there's nothing to worry about now! We've got the initiative back! Telegraph general Nimitz! In a word: "we can have a war!" On the morning of August 30, the US Pacific fleet began to turn to the left, and all the warships joined the second Pearl Harbor battle without hesitation. Every U.S. captain received a short message from Nimitz, with only one sentence: "we can fight!"