GL5 Active Defense System
China's self-developed GL5 tank active defense system was demonstrated for the first time in 2017. This system without human intervention, can automatically detect and Destroy incoming missiles and protect tank security.
Active Defense System (APS) refers to the movement features of incoming ammunition (anti-tank missiles and rockets) obtained through the detection device and then controlled by the computer to prevent the incoming ammunition from directly hitting the target system. Overall divided into interference type, intercept type and comprehensive type. Interference-based active defense system is to take the release of smoke, throwing lures and other forms of disruption so that incoming ammunition can not directly hit. Interception APS is launching interceptor missiles.
Some believe that once the tank active defense system is popularized and applied, it will not only unlock the balance of offensive and defensive tanks, but also change the related tactics and tactics and the mode of attack.
In the future, the tank warhead will adjust its launch volume and attack launch. If a purely one-directional or one-angle attack is sure to encounter such weapons and equipment with high efficiency and high-precision interception, in the future, Dense attacks, including attacks using various supersonic weapons, and even hybrid attacks on other weapons and equipment, are likely to become the norm.
Reference News Network on August 17 reported that August 16, 2017, the special event day "armor and anti-armor Day" held in Inner Mongolia, the official show some Chinese-made "GL-5 type active defense system (APS)" Intercept the video of the 89-type 120-mm anti-tank rockets, which is the first time such a system has been publicly released in the country.
The system does not move when incoming ammunition is still 50 meters away; once within 50 meters, the system can engage with any target hit at 70 to 700 meters per second. The system detects and destroys the target in just 0.07 seconds. This schematic shows the whole process of the arena APS, but it can be seen that the system still has some drawbacks. Although it covers the range of 340 degrees of the tank level, there is still a blind spot at 20 degrees behind the car body. From the official publicity video, domestic GL-5-type APS higher starting point, you can achieve the level of maximum 360 degrees, 20 degrees tilt to the area of ??protection
RPG's (Rocket Propelled Grenade) represent a serious threat to mobile land and aerial platforms. RPG's are considered the second cause of death of US soldiers in the Iraq war. According to certain assessments, inexperienced RPG operators could engage a stationary target effectively from 150-300 meters, while experienced users could kill a target at up to 500 meters, and moving targets at 300 meters. One known way of protecting a platform against RPG's is to cause explosion or discharge of the RPG's warhead away from the platform. Another known protection approach against RPG's and short range missiles employ fitting the platform to be protected with armor (e.g. reactive armor, hybrid armor or slat armor).
When a military operation is carried out in an urban environment, or under an ambush situation, RPG (rocket propelled grenade) threats can be fired from very close ranges. This means that there is very little travel time from the position of the RPG to the targeted personnel, and thus very little time for the targeted personnel to locate, respond to, and destroy the threats. An explosive countermunition can be used to rapidly engage the incoming threat; however, explosives significantly increase the hazard of fratricide. Several active protection systems are in various stages of development and fielding. These include DROZD and ARENA from Russia, Trophy from Israel, Diehl's AWiSS from Germany and NTAPS and SLID from the US.
The Trophy™ system creates a hemispheric protected zone around the vehicle where incoming threats are intercepted and defeated. It has three elements providing threat detection and tracking, launching and intercept functions. The threat detection and warning subsystem consists of several sensors, including flat-panel radars, placed at strategic locations around the protected vehicle, to provide full hemispherical coverage. Once an incoming threat is detected, identified and verified, a countermeasure assembly is opened, and a countermeasure device is positioned in the direction where it can effectively intercept the threat. Then it is launched automatically into a ballistic trajectory to intercept the incoming threat at a relatively long distance.
These systems have different characteristics, benefits, and drawbacks. DROZD is an explosive close-in countermeasure system firing from fixed tubes and offering limited coverage. ARENA is another close-in system also firing from fixed positions, with better coverage than DROZD but posing a high integration burden due to system size. Trophy is small, fast, has gimbals, and offers wide coverage, but is not multi-shot capable and its explosive may pose problems for a light skinned vehicle. Diehl's system uses a fragmenting grenade with a fairly inflexible timing scheme. NTAPS uses a tracking radar, gimbaled launcher, and rocket countermeasure with a total time line too slow for close-in RPG threats.
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