P90, p90

P90, p90

#include<stdio.h>#define N 4int fun(int a[][N]){int i,j,max=a[0][0];for(i=0;i<2;i++)for(j=0;j<N;j++)if(max<a[i][j])max=a[i][j];return max;}main(){int aa[2][N]={1,2,3,4,8,43,56,12};printf("max=%d\n",fun(aa));}

About fn p90

To meet the requirements, FN designers abandoned the idea of improving 9mm bullets and decided to re-design a new cylinder. They designed a 5.7x28mm SS90 bullet for P90, this type of bullet uses a composite bullet to reduce the weight. The weight of the SS90 bullet is only 5.5 grams, while that of the NATO 5.56mm SSl09 bullet is 12.5 grams. The new bullet uses a slow-burning propellant, which reduces the impulse of the rear seat. In addition, the gun uses the back-seat closed-bore shooting of the gun, thus hitting a very high precision. The test results show that, at a distance of 50 meters, the diameter of the 10-point shot dispersion circle does not exceed 200mm. At a distance of 150 meters, 10 rounds are displayed in blocks between 300 and 300mm.
P90 launches the newly developed 5.7 x 28mm small-caliber high-speed bullet. The 50-capacity bullet box is parallel to the top of the barrel. The bullet box is made of translucent plastic. To prevent nighttime reflection, it is mixed with coloring materials, light brown. Because the bullet in the cartridge is perpendicular to the axis of the barrel, the entrance of the cartridge is cylindrical, and there is a guide bullet to turn 90 degrees of spiral groove.
P90 is quite weird and unique in shape. It seems like a weapon in science fiction. The whole gun is about 50 cm long, with no support structure, light weight, and convenient carrying. The P90 adopts modular design and can be divided into four parts: the gun machine components, the integral barrel, the barrel and the casing components, and the magazine. 27 of all 69 parts are plastic parts. It is less than most of the gun and rifle. Tools are not used in the field, and can be completely decomposed within 15 seconds, so it is easy to perform maintenance. In addition, the shape and size of the P90 are also very unique. It adopts a "Straight Line" structure without support, and the grip and the hand gear and other guns (man-machine engineering) have a reasonable effect. It is more comfortable, and the design is symmetrical, which is convenient for the left and right hands. Its length is only 500mm (the barrel length is 230mm) and the width is 55mm. It is a real "little guy ". The gun weighs only 2.8-kg (empty), and the full bullet weighs 3.2, so it is easy to carry.
The automatic mode of P90 is a free gun type, which can be closed to be hit, and the gun machine is heavy to control the gun to sit behind. In the integral frame, the transmitter seat, hammer, trigger, and integral frame are all engineering plastic parts. The Base Plate of the barrel is soft rubber. The Bottom Plate of the barrel is filled with a product cylinder, a brush head, a chain, and a canvas. A shell collection bag can be mounted at the shell throwing port, which was prepared at the request of Special Forces.
P90 is located at the bottom of the trigger, with "A", "I", and "S", representing automatic, semi-automatic, and insurance respectively. Because of the speed and speed machine location and form, the finger with the trigger can be easily controlled.
The Barrel Assembly consists of a trunk handle, a sturdy but inexpensive collimated optical gauge, and a barrel. There are two handpiece, the left and right sides of the barrel, although the length of the whole gun is short, but because of the no-support structure, the barrel length is 230. The flame eliminator has the anti-hop function. In addition to the diagonal cutting at the front end, there are four holes divided into two rows above the left and right. (P90 has no oblique cutting at the initial stage of production, and there are six open holes divided into two rows)
In addition, the structure of the gun is quite compact. Both the gun machine and the barrel are packed in a box-shaped casing, and the cartridge is placed at the top of the casing on the line of the barrel shaft, this layout allows up to 50 bullets (only 30 normal hosts ). The P90 shell hole is under the gun, which has almost no impact on the shooter.
P90 uses a sight that is twice the size of an optical sight, which can be used around the clock (in the case of low light, the light source is used for illumination ). In addition, it has spare mechanical sights. The cartridge of the gun is made of treated transparent glass, so it is easy to check the loading situation in time. The operating principle of such a weapon is simple, and it will not take long for new recruits to use it.
The penetration of P90 is very strong. FN once demonstrated to the experts the experiment of penetrating 48 layers of Kaifu bulletproof vests at a distance of 100 meters, while at the same distance, A 12S assault gun with Beleta cannot penetrate the above target clothing. The effective range of P90 is 250-meters. When using a high-speed high-caliber bullet similar to a shell-piercing bullet, the effective range of P90 can be increased to meters. Long enough range, powerful penetrating force, plus a shooting speed of 900 FPS, so that P90 has a huge power; can cope with various troubles.
These advantages of P90 also allow it to find enthusiastic supporters among the special forces and National Police, and it is very likely to replace the current special program ...... the remaining full text>

About fn p90

To meet the requirements, FN designers abandoned the idea of improving 9mm bullets and decided to re-design a new cylinder. They designed a 5.7x28mm SS90 bullet for P90, this type of bullet uses a composite bullet to reduce the weight. The weight of the SS90 bullet is only 5.5 grams, while that of the NATO 5.56mm SSl09 bullet is 12.5 grams. The new bullet uses a slow-burning propellant, which reduces the impulse of the rear seat. In addition, the gun uses the back-seat closed-bore shooting of the gun, thus hitting a very high precision. The test results show that, at a distance of 50 meters, the diameter of the 10-point shot dispersion circle does not exceed 200mm. At a distance of 150 meters, 10 rounds are displayed in blocks between 300 and 300mm.
P90 launches the newly developed 5.7 x 28mm small-caliber high-speed bullet. The 50-capacity bullet box is parallel to the top of the barrel. The bullet box is made of translucent plastic. To prevent nighttime reflection, it is mixed with coloring materials, light brown. Because the bullet in the cartridge is perpendicular to the axis of the barrel, the entrance of the cartridge is cylindrical, and there is a guide bullet to turn 90 degrees of spiral groove.
P90 is quite weird and unique in shape. It seems like a weapon in science fiction. The whole gun is about 50 cm long, with no support structure, light weight, and convenient carrying. The P90 adopts modular design and can be divided into four parts: the gun machine components, the integral barrel, the barrel and the casing components, and the magazine. 27 of all 69 parts are plastic parts. It is less than most of the gun and rifle. Tools are not used in the field, and can be completely decomposed within 15 seconds, so it is easy to perform maintenance. In addition, the shape and size of the P90 are also very unique. It adopts a "Straight Line" structure without support, and the grip and the hand gear and other guns (man-machine engineering) have a reasonable effect. It is more comfortable, and the design is symmetrical, which is convenient for the left and right hands. Its length is only 500mm (the barrel length is 230mm) and the width is 55mm. It is a real "little guy ". The gun weighs only 2.8-kg (empty), and the full bullet weighs 3.2, so it is easy to carry.
The automatic mode of P90 is a free gun type, which can be closed to be hit, and the gun machine is heavy to control the gun to sit behind. In the integral frame, the transmitter seat, hammer, trigger, and integral frame are all engineering plastic parts. The Base Plate of the barrel is soft rubber. The Bottom Plate of the barrel is filled with a product cylinder, a brush head, a chain, and a canvas. A shell collection bag can be mounted at the shell throwing port, which was prepared at the request of Special Forces.
P90 is located at the bottom of the trigger, with "A", "I", and "S", representing automatic, semi-automatic, and insurance respectively. Because of the speed and speed machine location and form, the finger with the trigger can be easily controlled.
The Barrel Assembly consists of a trunk handle, a sturdy but inexpensive collimated optical gauge, and a barrel. There are two handpiece, the left and right sides of the barrel, although the length of the whole gun is short, but because of the no-support structure, the barrel length is 230. The flame eliminator has the anti-hop function. In addition to the diagonal cutting at the front end, there are four holes divided into two rows above the left and right. (P90 has no oblique cutting at the initial stage of production, and there are six open holes divided into two rows)
In addition, the structure of the gun is quite compact. Both the gun machine and the barrel are packed in a box-shaped casing, and the cartridge is placed at the top of the casing on the line of the barrel shaft, this layout allows up to 50 bullets (only 30 normal hosts ). The P90 shell hole is under the gun, which has almost no impact on the shooter.
P90 uses a sight that is twice the size of an optical sight, which can be used around the clock (in the case of low light, the light source is used for illumination ). In addition, it has spare mechanical sights. The cartridge of the gun is made of treated transparent glass, so it is easy to check the loading situation in time. The operating principle of such a weapon is simple, and it will not take long for new recruits to use it.
The penetration of P90 is very strong. FN once demonstrated to the experts the experiment of penetrating 48 layers of Kaifu bulletproof vests at a distance of 100 meters, while at the same distance, A 12S assault gun with Beleta cannot penetrate the above target clothing. The effective range of P90 is 250-meters. When using a high-speed high-caliber bullet similar to a shell-piercing bullet, the effective range of P90 can be increased to meters. Long enough range, powerful penetrating force, plus a shooting speed of 900 FPS, so that P90 has a huge power; can cope with various troubles.
These advantages of P90 also allow it to find enthusiastic supporters among the special forces and National Police, and it is very likely to replace the current special program ...... the remaining full text>