The recoil of a large caliber gun can push the plane back! Knock the top of the water tank open with one shot.

Since the aircraft entered the war, it has been used as a reliable air vehicle to attack the enemy's ground targets. The history of aviation in World War II has blossomed, and the flight trajectory of aircraft activities has begun to spread all over the continents. In this "land of geomantic omen" in western Europe, the three-dimensional war has begun to take shape in the embryonic form of modern war. Although the air force is a young service, the development of aviation industry in the six years of World War II can at least be comparable to that in the twenty or thirty years of peacetime. With the gradual maturity of armed forces and equipment, countries have basically mastered and created their own aviation tactics. However, when precision strikes are carried out against ground targets, countries have to return to a starting line and start again. In fact, in that era when helicopter gunships and anti-tank missiles were still concepts, there was only one way for countries to solve the precise attack on points: dive bombing. Such tactics can only be said to be barely enough, not applicable and not practical. For ground air defense firepower, when it attacks, the flight path will undergo an extremely classic and regular change: put down the flaps and open the speed brake, and the outline of the aircraft in the sky will quickly turn into a small black dot. As long as the shooting parameters are predicted in advance and set, all air firepower may shoot down such a dive bomber. However, the dive bomber had to make such a maneuver because of its mission orientation, and dropped an "iron bomb" without power and guidance, but it was better than a large number of charges. Rockets and aviation machine guns are less powerful and can only attack light armored targets such as infantry and cars. The dive bombers in this period mainly dealt with ships, tanks and infantry, as well as a building facility. At that time, most of the airborne automatic air guns were small caliber guns with a diameter of more than 20mm and less than 30mm-the direct consequence of the small diameter of the projectile was that the anti-static lethality and penetration were just a little bit. Power was useful before the allied forces began large-scale bombing. However, after the large-scale bombing in Germany, these cannons were weak in the face of American and British cannons, large-caliber machine guns and large bombers covered with thick armor. How to extend the range of airborne powerful weapons, or how to increase the power of airborne direct weapons, has become the top priority of German researchers. In modern times, this way is really simple and rude, and there is actually a lot of helplessness in the detour. In order to make the aircraft win some targets with a large number of tortoises and great threats at the least cost, the most common method is not to increase the charge of aviation bombs, but to increase the caliber of airborne artillery and improve the power or range of artillery shells. The difficulties faced by the Germans on the ground at that time could kill people-the "tank sea" of the Soviet troops on the Eastern Front was not as comprehensive as the German tanks, but it was enough to drown the Germans in quantity. After D-Day 1944, allied forces with quite a few tanks also landed on the European continent. It is impossible for the Germans to produce a large number of high-quality tanks for armored confrontation. However, at that time, the Germans still had local air superiority-weapons that could destroy multiple tanks in one deployment, or the only weapons that were particularly attractive in exchange, I am afraid there were only various dive bombers and attack aircraft. There are about 7 kinds of guns with diameters greater than 50mm that Germany has tested in the proving ground. 50mm, 75mm or even 88mm, Germany basically used all available army medium and small caliber artillery. But there is a more crazy product, I'm afraid that even the air force and navy of any country dared not think about it at that time-even the standard naval guns of battle cruiser have been tested by large bombers, and the caliber even reached an unprecedented 356mm! This is no joke, but in the end, this giant gun decided to dismount because it damaged the tail of the plane with one shot. However, at the beginning of the design, this kind of giant gun did not consider the ground attack. According to the idea, it will be deployed in a large airport near the coastline, and will be covered by a large number of fighters and dive bombers when enemy ships approach. When it enters the range of 356 mm cannon, it will fire, and the powerful shells will penetrate the deck of most ships and detonate under the deck. Of course, there is no need to use such a powerful airborne gun in actual combat. The BK37 37mm machine gun is enough to lift the top armor of the tank-the rudder of the German ace pilot, known as the "cannon bird". The only winner of the Shuang Ye Knights of Diamond, Gold, Double Sword and Gold is Stuka. At the end of the war, he used JU87G with two BK 37 37mm semi-automatic cannons, operated this "cannon bird" with two 37mm cannons, and destroyed tanks and armored vehicles with a record close to 15%. There are many descriptions about BK37 37mm cannon in the pilot code series of the German Air Force. Its gun body comes from Flak 18 37mm antiaircraft gun. Because of its advantages of long barrel and high bore pressure, its trajectory is quite straight. In the code of conduct, pilots are often advised to make a detour after discovering enemy cluster targets and attack from the side and rear of tanks. Tungsten core armor-piercing projectile can penetrate about 43mm thick armor, while the top armor of T34-85 tank is only 20mm thick. In other words, it is possible to destroy a T34 tank with one shot. If the hit part is the engine compartment, it will lead to the damage of the engine, thus paralyzing the tank. In addition to Stuka, Hs. 129, the world's first special anti-tank attack aircraft, also adopted the design of adding large-caliber cannon. It's just that this gun is much bigger than Tuka's 37mm hose. Hs. 129 adopts BK 7.5 machine gun, which means "75mm caliber cannon"! If you don't count the shells, the weight of this gun has reached an unprecedented 1200 kg. So a Hs. 129 basically has no room to carry other bombs and rockets after carrying such a cannon. And in order to hold this big guy, the Germans only designed 12 drums for it. This huge drum is directly behind the pilot, occupying almost the space of the magazine and part of the fuel tank. In addition to the recoil structure that can only reduce part of the recoil, there is also a huge and complicated shell throwing system. Semi-automatic shooting can only make the firing rate of this gun have to drop to an outrageous speed. Of course, actual combat has proved that the power of BK 7.5 may have gone too far. Moreover, the fault tolerance rate is relatively low, and one dispatch can only carry 12 shells. Pilots can withstand all kinds of interference, and it is not easy to hit tanks with machine guns and machine guns. What's more, it is necessary to accurately aim at the distant tanks with a simple sight. Only when there is a certain probability of hitting the target, dare to attack. There are not many Hs. 129 equipped with BK 7.5 guns, and only one prototype has produced about 25. Such a large caliber gun is really chicken ribs. German researchers believe that the KwK39L/60 50mm tank gun equipped on the III tank may be competent for this kind of work. According to public information, the body weight of this tank gun is only about 700 kg, and it can penetrate the standard homogeneous steel armor of about 78 mm at a distance of 500 meters. The launched 50×4 19mm tank shell is relatively small in size, but relatively powerful-which is why it will be staged. The earliest unit to install the BK5 cannon was the German Air Force JG26 heavy fighter Wing, but its Me4 10 heavy fighter rarely undertook the task of attacking tanks. But the pilots still shot 22 rounds of BK5: If it is used to attack bombers, it is simply a blow! The United wing is equipped with 52 Me4 10. 1in the spring of 944, the result of shooting down 129 B- 17 bomber was obtained, and the loss of our own side was not great. Heavy fighter, with poor maneuverability and high thrust-to-weight ratio, is equipped with such a large caliber cannon to kill American bombers that frequently appear in the sky. Then, won't jet fighters with higher thrust-to-weight ratio and better maneuverability be replaced by such large-caliber cannons? The Germans naturally want to install the BK5 cannon on the Me262 and replace all MK 108 30mm cannons. Such an experiment is not a problem for Germany, the hometown of black technology. So a Me262 was specially transformed into a BK5 testing machine, and the engineering code was Me262-A 1a-U4. At first, this kind of gun can be equipped with troops quickly, but in the subsequent tests, a huge problem was suddenly discovered-if pilots such as Me 262 or Me 4 10 could not use this powerful gun at night when responding to the night bombing of the allied forces-because of the large charge and short barrel of the shells, huge muzzle flames were often generated when launching. The glare caused by muzzle flame will directly lead to the pilot's temporary blindness. Even in the daytime, the actual performance of this gun is not satisfactory. So this Me 262-A 1a-U4 stayed in the proving ground from then on, neither returned to the air wing nor used for other purposes, until the allied forces liberated it. However, it eventually became a jet fighter with the largest caliber cannon in the world. This record has not been broken so far. Of course, not only Germany does this, but the United States also plays this way. The B-25 bomber was equipped with a 75 mm gun, and the armed forces were instantly enhanced, which was equivalent to moving the guns of the Sherman tank to the bomber. This plane has a 75mm gun, a 10 machine gun and a 2700kg bomb. Its powerful firepower was extremely threatening at that time, and it was called an "air gunboat". The application of these large-caliber guns in large ships, planes and tanks on planes has also been studied in various countries. In the end, it was because of the performance problems and fatal defects of the artillery itself that it was turned into a technical reserve. As for Germany, these equipped products are also short-lived. After the appearance of anti-ship missiles, air-to-air missiles and various air-to-ground missiles, the design of large-caliber artillery never appeared again. Modern air combat has already developed to the point that it was never imagined at first, but it has not actually separated from the air force structure established during World War II. Air-to-air missiles, air-to-ground missiles and other guided weapons were all produced at the end of World War II. As a traditional air combat weapon, machine gun was first cancelled by the United States in Vietnam War. But in actual combat, the immature air-to-air missile once again proved its unreliability, and the machine gun returned to the fighter. However, with the rapid development of electronic industry, air-to-air missiles have become the first choice for air combat. The traditional machine gun seems to be becoming a disappearing weapon.