In fact, the Vulcan cannon is most suitable for installation on warships and aircraft, although the high-speed rotating barrel will increase the dispersion of the shot due to the action of centrifugal force, but the high rate of fire and strong firepower can make up for the lack of accuracy, not only can hit air targets and ground armored targets, but also can be a very effective weapon to kill the group's living targets. In addition, since the rate of fire is determined by the rotational speed of the DC motor, it is much more convenient to obtain any rate of fire from 300 rounds per minute to 4000 rounds per minute as long as the current size is changed, which is much more convenient than adjusting the rate of fire from a mechanical single-barreled gun.

As Xiao Weiguo started the motor of the Vulcan cannon, the seven barrels of the Vulcan cannon began to rotate rapidly, making a loud sound, which was the idling sound of the Vulcan cannon before it fired, and it sounded relatively crisp. However, after the seven barrels of the cannon sped up, it was about two or three seconds for the Vulcan cannon's shells to start firing!

Although they were wearing earmuffs, Xiao Weiguo and the other three could still hear the huge roar of the Vulcan Cannon, only to see the muzzle of the cannon flashing, countless cannonballs shot out like a torrential rain, and the entire turret trembled under the powerful power of the Vulcan Cannon! If you don't wear earmuffs, you're bound to experience temporary deafness in the turret! The yellow and clear metal shells swarmed out of the shell throwing mouth, and the sound of the shelling was already connected, and it was impossible to distinguish the sound of a certain shell! Because the rate of fire at this time was as high as 2,000 rounds per minute, that is, more than 30 shells were fired in one second.

Countless bullet casings jumped happily and landed on the floor, and in a few seconds they were already all over the floor inside the turret, and even the feet of the three men were quite a few! You can imagine how high the rate of fire of the Vulcan cannon is! In just ten seconds, more than 300 shells were fired, and in an instant, the pine target was covered with dense bullet holes! It's completely beaten into a sieve! Fortunately, at this time, Xiao Weiguo stopped shooting! The first test was a success! There were no jams or other failures.

Xiao Weiguo gently took off the earmuffs and said happily to Karl: "Mr. Karl, how is our Vulcan Cannon?" ”

Karl was also shocked by the divine power of the Vulcan cannon just now. He held the earmuffs he had just removed in one hand and muttered, "It's terrible! In front of the Vulcan cannon, no matter how fast the plane flies, no matter how powerful the armor is, the tank will be torn apart! Not to mention ordinary soldiers! This cannon is used to fight the living forces, which is a bit of a waste! ”

Xiao Weiguo laughed and said: "That's right, the Vulcan cannon is not mainly used to hit people!" If this man is hit by a shell. It's going to be crushed! Even an ordinary tank can't afford to take its blows! In particular, the Vulcan cannon is mounted on a fighter plane and attacks tank armored vehicles from the top, and that kind of combat effectiveness is too high! One dozen and one accurate! ”

Carl said excitedly: "Okay, let's go see the situation of the target!" I think even the steel plate in the back should have been smashed into a steel sieve! ”

Xiao Weiguo nodded and said, "Okay, let's go and see!" ”

In fact, Xiao Weiguo certainly knows that the effective range of the 30mm rotary tube gun against ground armored targets is generally 1500~2000 meters, and the effective range against air targets such as aircraft is 4000 meters. Armor-piercing shells at a distance of 1500 meters can penetrate steel plates 60 mm thick with an inclination angle of 25 degrees. So, it is difficult to say whether this time it will be possible to break through the 3000 mm erection steel plate behind the pine target at a distance of 20 meters.

When Xiao Weiguo and the others ran to the target 3,000 meters away, everyone couldn't help but gasp! I saw that the 20 mm steel plate behind the pine whip had been completely deformed, and some of the bullet holes were densely connected, and even fist-sized holes had been formed. Xiao Weiguo didn't expect it. The power of the Vulcan cannon is so great. However, he thought about it carefully and understood that the A10 attack of the US military destroyed thousands of tanks in Iraq. Although its Vulcan cannon uses depleted uranium shells, it has an armor penetration depth of 60 mm, which is enough to penetrate the top armor of the tank. And now the Vulcan Cannon of the Dragon Soul Ordnance, although it is an ordinary armor-piercing projectile, its power should not be underestimated! In this way, it is an ordinary tank now. If an attack is carried out from the side or top of it with a Vulcan cannon at a distance of 2000 meters, it will also be enough to penetrate their armor, which is not too thick.

According to the preliminary estimation from the impact point, the target firing density of the Vulcan cannon is still relatively large, and although the dispersion of its impact point is uneven, the closer it is to the dispersion center. The denser the impact point, the more oval the dispersion surface, and the high and low dispersion is obviously greater than the left and right dispersion. However, the exact distribution needs to be counted and calculated.

Xiao Weiguo said happily: "Not bad! The power of the Vulcan cannon is very powerful! Even better than expected! Let's conduct a direct fire distance test to see how big the maximum effective direct fire distance of the Vulcan is! ”

The direct firing distance test is the main item of the external ballistic performance test of the artillery, which is related to whether a gun can meet the designed combat indicators. The magnitude of the direct firing distance is an important indicator of the ballistic straightness of the artillery. This direct distance refers to the range at which the height of the projectile's trajectory apex is equal to the given target height. In general, a small-caliber gun will take a height of 2 meters, and if it is a cannon mounted on a fighter jet, it will be smaller, about 1.5 meters. This means that at a direct firing distance, the maximum ballistic height does not exceed the height of the target, and the shell can hit the target as long as the height of the projectile trajectory deviates from the aiming line no more than the height of the target.

Although for a gun such as the Vulcan, which is not designed for accuracy, but for the rate of fire, its maximum direct range also needs to be measured. After all, when fighting, the Vulcan cannon still needs to aim at the target, if it is just a random shot, it may also deviate greatly from the target, although the Vulcan cannon firepower is intensive, but its impact point also has a dispersion area. For example, if your aiming line deviates from the target by 20 or 30 meters, even if the impact point of the Vulcan Cannon reaches a radius of 10 meters, no matter how many shells are fired, it will not hit the target.

In this test project, the relationship between the stroke of the projectile and the flight altitude of the projectile is also tested. When firing from the ground, the absolute muzzle velocity of the projectile is equal to its muzzle velocity because the firing point does not move relative to the ground, but when shooting from the air, it is different because the firing point, that is, the aircraft moves relative to the target. When shooting straight ahead in the air, the direct distance is definitely farther than the ground, and this is because the plane itself has an acceleration. (To be continued.) )