CPI Announces Patent Approval For Active Protection System Against RPG’s.

CPI Announces Patent Approval For Active Protection System Against RPG’s.

In addition to providing advanced electromechanical switches and linear position sensors for harsh duty applications around the world, CPI also holds intellectual property rights for a number of engineered system designs. Perhaps one of the most promising is the RPG shield initiative, an Active Protection System (APS) which explores the possibility of protecting our military from one of the most insidious and prevalent threats on the battlefield.

Recently CPI was awarded 3 US patents: 8,536,500, 8,399,816, and 8,122,810 which relate to ground missle defense systems and countermeasures, including the APS system dubbed “The RPG Shield”.

A System And Method For the Rapid Aiming And Firing of Defense Countermeasures.

APS systems have seen much R&D by the military over the last decade, owing to the demonstrated vulnerability of battle tanks, Humvee’s, and helicopters on the battlefields of Iraq, Yemen, and Syria to name a few. To be effective in real-world combat scenarios, an active RPG defense system must be capable of aiming and launching countermeasures within 100 milliseconds (100ms) from the time of threat detection.

RPG-Attack-Dynamics

According to sources with combat experience, the RPG is most typically a “100-yard weapon”. Adversaries know that to be effective, the RPG needs to be fired at close range. The RPG-7’s maximum flight velocity is around 300 meters per second, so assuming roughly 100 yards to target, it could take as little as 300 milliseconds from launch to impact. Given that any (aimed) active defensive system must detect the inbound threat, classify it, process a response, and aim and launch the countermeasure before the threat makes contact; a realistic system design goal would require the aiming mechanism to be capable of addressing a threat from any direction in 100 milliseconds or less. There is presently no traditional “gun and gimbal” turret system that can aim this rapidly.

Existing RPG defense systems under development by Israel include their Trophy system which has been deployed and has seen some success on ground vehicles however the US military declined to take delivery on the Trophy system due to concerns about the large lethal zone and the associated high danger for friendly soldiers in the area. In general, current launcher or turret type systems suffer from one or more of the following problems:

1. Long system reaction times (includes time to aim a countermeasure)
2. Long seeking radars used to improve detection range can also be used to find/track the vehicle.
3. Large uncontrollable lethal zone for shotgun type countermeasure.
4. Limited zone of engagement as turret’s may require shields that prevent 360 degree rotation.
5. Limited multi-hit capability, they require reload after firing once or twice. Most systems have only 2 to four countermeasures available prior to reloading.
6. Heavy weight of countermeasure launchers (guns) and need for multiple guns for simultaneous thread defeat.

CPI’s Unique Active Prevention System – A Fundamentally New Approach

Rotating-Turret-Assembly-CPI-RPG-ShieldFor RPG defense, a continuously-rotating countermeasure aiming and launching system provides a much faster response than a traditional “gun and gimbal” turret system. Many active RPG countermeasures are self-propelled munitions. They do not require robust gun barrels for launch. They may be launched from short tubes that are little more than storage capsules. Self-propelled munitions also do not produce significant recoil. We propose a design of a fast aiming-and-launch system in the form of a rotating drum. This drum-shaped countermeasure launch container houses multiple munitions, each in a short launch tube, in an outwardly-facing circular array. The circular array lies on a plane perpendicular to the drum’s axis. Given that the launch tube is only about as long as the munition itself, this circular array could be realized in a drum-shaped launcher whose overall diameter is slightly larger than twice the length of an individual countermeasure round. Rotating the drum about its axis creates a situation in which any point, or multiple points, on a planar azimuth of rotation are continuously brought into the line of fire of the munitions in the array. Any point within a full 360 degrees can be targeted in the time that it takes to rotate the nearest-available munition (array element) to that point. In one example, 8 countermeasure munitions are arranged in the outward-facing 360 degree circular array with munitions spaced equally every 45 degrees. In this example the drum must rotate (at most) 45 degrees in order to bring the nearest munition to any point around a 360-degree azimuth. Depending upon the rotational speed of the drum, the time required to bring munitions to bear could be on the order of milliseconds. The preceding description provides a rotational turret capable of firing 8 countermeasures. However a drum-shaped launcher suggests the possibility of superposing (stacking) multiple arrays of countermeasures. So a single drum-type launcher is capable of firing 16 or more defensive munitions prior to reloading and would not potentially require a second instantiation of the turret for multiple threat detection.

Munition-Breakout-Drawing

Further calculations on a drum that rotates about as fast as a ceiling fan (300 RPM), show that a countermeasure could be delivered to any point on the azimuth in 25 milliseconds or less. This is roughly the amount of time that it takes an RPG to cover about 7 meters.

Another potential advantage of the system is the ease with which a LIDAR system for threat detection could be implemented by fixing a laser triangulation sensor to the top of the rotating launcher. This could be coupled with an IR sensor for further detection reliability. A unitized system like this could be made highly portable and light, suitable for air as well as ground vehicles.

For more information on the CPI RPG defense system,
contact Cliff Moodie at 973-887-9400

Notional Deployment

The unique CPI ARC system coupled with the RTB (Rocket Towed Barrier) is suitable for deployment on any VTOL aircraft as well as land vehicles.

Learn More

Read More

RPG Helicopter Defense.

RPG Helicopter Defense.

As one of the workhorse helicopter assets of allied military’s around the world, the Chinook CH-47 and variants carry more cargo and soldiers into battle than any other flying aircraft. It is known as a “battlefield multiplier” and its importance to combat logistics cannot be overstated.

Despite this tactical importance, military analysts can also tell you that the Chinook is also one of the most vulnerable choppers in the US arsenal. In Afghanistan, more CH-47D helicopters have been shot down than any other single type of aircraft.  In the words of one US Ranger, “CH-47D’s fly really high and slow with no evasive maneuvers. They’re a huge target up there, like a train coming in for a landing.”

The CH-47D is but an extreme example of the risks faced by all hovering aircraft in the battlefield. It is with this challenge in mind that CPI engineers conceived of their unique battlefield defense system dubbed the CPI ARC system

Active Rotating Countermeasure (ARC) System for Helicopter Defense.

Unlike other RPG defense systems currently under development (Israeli Trophy, Rheinmetall ADS, etc..) the CPI ARC system utilizes a continuously rotating munitions head capable of delivering multiple non-lethal munitions into the path of oncoming rockets. Unique to the system is the turret: a continuously rotating launch platform which can house a wide variety of munitions, each customized for the same or multiple threat defeat profiles.

For RPG defense the launch munitions include what is referred to as a Rocket Towed Barrier (RTB). The barrier is essentially a kevlar parachute which expands into the path of the rocket once launched. The effect of the parachute is to either deflect or explode the RPG, effectively rendering it non-lethal without the risks of damage to the aircraft or friendly forces nearby. Because the platform holds close to two dozen rounds and is continuously spinning, it can detect and launch multiple countermeasures defeating multiple threats.

It should be possible to detect and defeat threats more rapidly using the ARC system. This means threat defeat further from the aircraft instead of relying on armor to protect personelle from explosions that often occur within 1 meter or less of the vehicle as in the case of the Trophy system. Existing detection systems can be tied into ARC but since it is continuously spinning, there is no need for the extreme turret movement and inertial damping required by gun based systems. Software identifies the threat vector and launches the next available countermeasure on the spinning turret. Since the parachute covers a wide surface area, there is no need to “hit a bullet with a bullet”. Nor do we worry about the fratricidal potential of shotgun type munitions, though these could be used with the ARC system as well if deemed more appropriate for certain threats in certain tactical situations.

For More Information Contact CPI Today

CPI is actively looking for a partner with which to license and develop this technology. Please send all inquiries to Mac Stuhler at mac@cpi-nj.com

To read more about this patented technology please go to https://www.morris-ip.com/passive-rpg-defense/

Notional Deployment

The unique CPI ARC system coupled with the RTB (Rocket Towed Barrier) is suitable for deployment on any VTOL aircraft as well as land vehicles.

Learn More

Read More

Active Protection Systems for the Army and Beyond

Active Protection Systems for the Army and Beyond

Rheinmetall-Stryker-Active-Protection-System

At the 2018 AUSA meeting (Association of the U.S. Army) the army discussed its continuing evaluation of APS (Active Protection Systems) for the Stryker combat vehicle. This is part of an overall effort to develop and deploy APS on almost all ground combat vehicles. From DefenseNews.com :

“More than a year ago, the Army determined it needed to field an interim APS solution for the Abrams tank as well as the Stryker and Bradley. The service decided to rapidly assess off-the-shelf APS systems to fulfill an urgent operational need after failing — over a 20-year period — to field an APS capability.”

As a result, the Army distributed an RFP earlier in the year for APS system proposals. While four companies responded, only two were considered ready for prime time and were invited to a live-fire rodeo in November to see if either was ready to be an interim solution for combat vehicles while they search for a permanent APS solution.

Invited to the rodeo were Israeli company Rafael’s Trophy VPS, a lighter version of the Trophy system that’s serving as the interim protection solution for the Abrams tank. Also invited was Germany-based Rheinmetall’s Active Defense System. Each will have a chance to show the Army capabilities that could go on a Stryker, or potentially another system.

CPI’s Unique APS, the ARC system

Notably missing from the Defense department’s November shootout, was the CPI RPG Shield system know as the “ARC” system. ARC stands for Active Rotating Countermeasure and represents a threat protection paradigm with significant advantages over both the systems recently invited to the Army’s shootout.

  1. Rotating-Turret-Assembly-CPI-RPG-ShieldLow Cost – Even the German government declined to go with Rheimetall’s solution due to its high cost. The CPI system integrates into existing LIDAR paradigm’s and has a rotating turret of much greater mechanical simplicity.
  2. Highly Flexible Munition Array – The CPI system is the only system to allow for deployment of multiple specialized munitions in one firing assembly. Munitions can be tailored to the threat through software without need to deploy a different system in a different operational theater.
  3. Operations on hoovering Aircraft – Current systems are highly specialized to operating best on only certain vehicles. The Trophy system for the Abrams Tank, the Rheinmetall’s system is best suited to Stryker. But the CPI system has characteristics that make it largely vehicle agnostic. Two versions of the rotating turret, one for ground vehicles and one for aircraft are likely all that would be needed. The differences in operation are encapsulated in the selection of munitions.

The Army’s need for a short term solution to APS is certainly understood. But it’s long term needs may be best served by a system like the CPI ARC system as no system currently under consideration has the operational potential of this threat detection and defeat paradigm or as low a projected cost.

CPI is actively looking for a partner to license and develop this technology. For more information visit our Arc System pages or contact us directly at 973-887-9400

Notional Deployment

The unique CPI ARC system coupled with the RTB (Rocket Towed Barrier) is suitable for deployment on any VTOL aircraft as well as land vehicles.

Learn More

Read More

CPI’s Active RPG Defense System for the US Military

CPI’s Active RPG Defense System for the US Military

Patent-Graphic

While CPI is certainly well known for its Waterproof Switches and Linear Position Sensors, lesser known are certain patents and intellectual property that CPI regularly develops.  One of the most exciting ideas has to be CPI’s RPG Active Defense System

For over a decade, military forces around the world have been looking for a system that can defeat short range missile attack. Rocket Propelled Grenades (RPG’s) and other ordinance have continued to become more and more lethal to ground vehicles and helicopters, and just increasing armor is not a deterrent and carries its own set of issues.

There have been systems under development for many years but problems related to current systems abound.

  1. They mostly try to hit a rocket with a shotgun blast. Problem is the shotgun blast hits friendly troops near the vehicle too.
  2. They respond slowly and can respond to only one attack at a time.
  3. They can be defeated easily by new RPG 30 tactics which lead with a bullet in front of the missile which fools many of these systems into releasing their ordinance too early.
  4. The current systems are not suitable for aircraft due to the collateral damage issue.
  5. They are very expensive.

Rotating-Turret-Assembly-CPI-RPG-ShieldThe CPI system consists of the Active Rotating Countermeasure (ARC) System and Rocket Towed Barrier (RTB) munition shown below. These patented system elements represent unique innovations combined with highly developed technologies which greatly improve threat neutralization, providing the most reliable and effective system for protecting both ground vehicles and for the first time, helicopters, from MANPADS of all types, while eliminating unintended damage/casualties.

How the CPI Active Protection System Works

The CPI Rocket Towed Barrier combines two patented parts of CPI’s RPG missile defense approach. First is the “Rocket Towed Barrier” or RTB. This is essentially a munition containing a small parachute like barrier made of Kevlar or other material which deploys behind a short range rocket which tows it into the path of the incoming threat(s). The RTB system utilizes existing technologies in novel and effective combinations. The system does not rely on future technological breakthroughs, such as airborne lasers, nor does it embody unrealistic operating requirements such as “hitting a bullet with a bullet.

Second is the ARC system, a continuously rotating turret that can bring a wide variety of ordinance to bear on incoming threats, in a fraction of the time of current systems.

The RTB utilizes a variety of defeat modes which include fuzing, deflection, and flight disruption. Since defeat is not based on destroying the incoming threat, probability of successful countermeasure is greatly enhanced. Barriers can be configured as simply as a Kevlar shield, or can incorporate features such as decoy IR, planar cutting charges, or percussion charges.

The RTB system is non-fratricidal (no primary explosives or deadly hail of shot pellets). The system is much safer for situations involving dismounted troops or non-combatants. This presents a major advantage over other proposed systems like Trophy® and QuickKill.

CPI System Licensing

Currently, CPI is looking for a partner who is willing to license and develop this unique technology. If you are responsible for munitions development for any aspect of the military, we believe that this design is both cost effective to prototype and has significantly more potential than all current active protection systems.

Please contact Mac Stuhler of CPI today for more information.

Active Protection Systems
CPI’s Rocket Towed Barrier Range Testing Conducted For British Television.

Notional Deployment

The unique CPI ARC system coupled with the RTB (Rocket Towed Barrier) is suitable for deployment on any VTOL aircraft as well as land vehicles.

Learn More

Read More