FIELD OF THE INVENTION
Disclosed herein is a Close-In Kill Vehicle System operated on Naval ships like Frigates, Destroyers, Aircraft carriers etc to neutralise incoming threats like cruise missiles or any Anti-Ship missiles of such that could destroy the ship. BACKGROUND OF THE INVENTION
A close-in weapon system or CIWS is a point-defense weapon system for detecting and destroying short-range incoming missiles and enemy aircraft which have penetrated the outer defenses, typically mounted shipboard in a naval capacity. Nearly all classes of larger modern warships are equipped with some kind of CIWS device.
There are two types of CIWS systems. A gun-based CIWS usually consists of a combination of radars, computers, and multiple-barrel, rotary rapid-fire cannons placed on a rotating gun mount. Missile systems use infra¬red, passive radar/ESM or semi-active radar terminal guidance to guide missiles to the targeted enemy aircraft or other threats. In some cases, CIWS are used on land to protect military bases. In this case, the CIWS can also protect the base from shell and rocket fire.Some of the CIWS available includes:Kortik,SeaRamand Phalanx.
The Kortikclose-in weapon system (CIWS) is a modern naval air defence gun-missile system deployed by the Russian Navy. Its export version is Kashtan, with NATO designation CADS-N-1 Kashtan.
It is found on the aircraft carrier Admiral Kuznetsov, Kirov class battle cruisers, Neustrashimy class frigates, China's Sovremenny class destroyers, and other modern designs. Most typically deployed as a combined gun and missile system, it provides defence against anti-ship missiles, anti-radar missiles and

guided bombs. The system can also be employed against fixed- or rotary-wing aircraft or even surface vessels such as fast attack boats or targets on shore.
The Phalanx CIWS is a close-in weapon system for defence against anti-ship missiles, helicopters, etc. It was designed and manufactured by the General Dynamics(now a part of Raytheon). Consisting of a radar-guided 20 mm Vulcan cannon mounted on a swivelling base, the Phalanx has been used by multiple navies around the world.
The CIWS is designed to be the last line of defence against anti-ship missiles. Due to its design criteria, its effective range is very short relative to the range of modern ASMs, from 1 to 5 nautical miles (2 to 9 km). The gun mount moves at a very high speed and with great precision. The system takes minimal inputs from the ship, making it capable of functioning despite potential damage to the ship.
The SeaRAM combines the radar and electrooptical system of the Phalanx CIWS Mk-15 Block IB (CRDC) with an ll-cell RAM launcher to produce an autonomous system — one which does not need any external information to engage threats. Like the Phalanx, SeaRAM can be fitted to any class of ship.
All of the above discussed systems are proven effective and are used widely around the world. But the new anti-ship missiles are becoming more fast, stealthy and are capable of evading these systems by special manoeuvres. But such missiles when get closer to their targets say less than 800 metres aim only for the kill making them vulnerable. The above discussed CIWS have minimum effective range from 500, 1000, 1500 metres etc. making them least effective to destroy these advanced anti- ship missiles in close range when faced in large numbers. So, in such a situation where the CIWS fails to destroy the anti-ship missiles and are at a close range and is to destroy the ship, the CDCVS with its close-range(80-300mtrs) threat neutralisation and highly manoeuvrable

ability will be more effective and can be a life saver. Hence, a last line of defence to protect the ship.
SUMMARY OF THE INVENTION
An aspect of the present invention is to address at least the above-mentioned problems and/or disadvantages and to provide at least the advantages described below. Following are the objectives of the invention:
To develop a close-in anti-defence system capable of neutralizing threats at close range with high manoeuvrability capable of neutralising advanced generation of anti-ship missiles of today and tomorrow.
It should occupy only little space and can be easily integrated to existing ships without making major changes. It should be capable of working as an independent system with a launcher and by using the data from the ships radar and tracking system. It can also be integrated to an existing CIWS with an independent radar and tracing system.
The objectives of the invention will become apparent after consideration of the following description of the invention and its preferred embodiments detailed hereinafter.
DETAILED DESCRIPTION OF THE INVENTION
The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of exemplary embodiments of the invention as defined by the claims and their equivalents. It includes various specific details to assist in that understanding but these are to be regarded as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the

invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
The Close-In Kill Vehicle System or CDCVS is designed to be operated on Naval ships like Frigates, Destroyers, Aircraft carriers etc to neutralise incoming threats like cruise missiles or any Anti-Ship missiles of such that could destroy the ship. The main aim for the development of this is to develop a Close-In Anti-Defence System that is capable of neutralising threats at a close range of 80 to 300 Meters. When all the Anti-Defence systems fail to neutralise the threat. Also, it can be mounted on existing ship's with very minor changes and not by occupying large area to install it. The CIKVS can be integrated to the existing Close-in Weapon Systems or be operated as a separate independent system feeding data from the ships Radar and Tracking Systems.
The objects and many attandant advantages of the invention will be more readily appreciated as the same becomes better understood by reference to the following detailed description which is to be considered in connection with the accompanying drawings wherein like reference symbols designate like parts throughout the figures thereof.
BRIEF DESCRIPTION OF THE DRAWING ALONG WITH DESCRIPTION OF THE PREFFRED EMBODIMENTS
An aspect of the present invention is to address at least the above-mentioned problems and/or disadvantages and to provide at least the advantages described below. Brief description of drawings as well as further features and advantages of this method and apparatus according to the invention, will be clearer with the description of some of its pattern realizations that follow, made to illustrate but limit, with reference to the annexed drawings.
The Close-In Kill Vehicle System is a type of Close-in Anti-Defence Kill Vehicle capable of destroying an incoming Anti-Ship Missile at a very close

range by doing extreme manoeuvrability. The system will act as the last line of defence. It can be assembled on to a launcher and can be guided by the ships tracking system or be attached to a CIWS with independent tracking system.
Figure 1 shows the design of the Close-in Kill Vehicle System.
Parti:
It is the unit carrying the rocket motors that pushes the kill vehicle to the desired velocity for the kill vehicle to maintain stability in its flight. A detailed figure of the part 1 is shown in the Figure 2.
Part 2:
It is the unit carrying two movablemotor-controlled fins that stabilises the kill vehicle once launched, by controlling the pitch and roll movement. A detailed Figure of the part 2 is shown in the Figure 3.
Part 3:
It is the attitude control motor that helps the kill vehicle to achieve high manoeuvrability during its flight. There is one on the front and back of the kill vehicle for a stable manoeuvring. A detailed figure of the part 3 is shown in Figure 4.
Part 4:
It is the unit that holds the warhead weighing around 8-11 kg as per the requirements. It will be proximately fused and will be continuous rod/annular blast fragmentation or any fragmentation warhead of such that is available or is best suited for its purpose.
Part 5:
It is the unit that carries the RF seeker, Proximity Sensor and other necessary electronicsystems of the kill vehicle. A detailed figure of the part 5 is shown in Figure 5.
Figure 2 shows the design of the unit that holds the rocket motors and the

Parti:
Four rocket motors of diameter 4-5cm and length 10-13cm with burning time of 2-3 seconds are used to boost the kill vehicle to a certain velocity after it is launched from the launcher. The motors will come with star or multi core or any such propellant configuration that would give high thrust in its short burning time. Instead of four, a single motor with same thrust or a two or a three motor setup can also be used.
Part 2:
Foldable wings that will deploy on its own after releasing from the launch tube to balance the Centre of Pressure and Centre of Gravity of the kill vehicle to stabilize it during its flight.
Part 3:
The attachment that locks the unit to the kill vehicle.
Part 4:
The attachment that is connected to a spring release mechanism on the kill vehicle that will assist in the release of the unit from the kill vehicle.
Figure 3 shows the design of the unit that carries motor-controlled fins and foldable wings to stabilise the kill vehicle in its flight after release from the launcher.
Parti:
Motor stabilised fins that is folded initially and unfolded upon release from the launch tube. The fins control the roll and pitch movement of the kill vehicle. The system also kicks in and stabilize the kill vehicle when it takes high manoeuvres by using the attitude control system. The fins are operated as per the instructions given by the kill vehicles onboard control systems.
Part 9 •

Foldable wings that releases itself upon separation of the rocket motor unit shown in Figure 2. It helps the kill vehicle to balance the CP AND CG to stabilise the kill vehicle during its flight.
Part 3:
The lock release mechanism that releases the attachment from the rocket motor unit.
Part 4:
The spring release mechanism that releases the attachment from the rocket motor unit that results in a smooth separation of the unit from the kill vehicle.
Figure 4 shows the design of the attitude control motor system that helps in the kill vehicles manoeuvrability. Two such system will be placed in the kill vehicle for a better manoeuvrability.
Parti:
The motor with a valve operating mechanism closes and opens to regulate the thrust through the nozzles. Initially the valve will be in open position. But closes accordingly as per the instructions given by the control system.
The closing of the two valves on the bottom of both the attitude control motors together will pushes the kill vehicle upwards and vice-versa will pushes the kill vehicle downwards. The left and right movement is also possible with closing of both right and left valves of the kill vehicle. Also, pitch and yaw movements etc are also controllable with independent valve controls. At a time two nozzle valves can be closed together releasing the thrust through the other two nozzles.
Part 2:
The nozzle through which thrust gas is released. Four nozzles are available on each attitude control motor system. Each nozzle is designed in such

a manner to control the thrust formed even if two nozzle valves are closed together.
Part 3:
The inner section of the attitude control motor system. With 15 -20 cm propellant diameter and 10-15 cm core length with a burning time of 8-12 seconds. The entire thrust formed is converged to a chamber and is released sideways through the 4 nozzles.
Instead of this, individual solid rocket motors packed together can also be used for attitude controlling.
Figure 5 shows the design of the unit which carries the necessary electronic control systems as well as the RF seeker and proximity sensors.
Parti:
It carries the control unit as well as other necessary electronic circuits that measure the altitude, tilting angle, velocity etc. as well as the power supply system.
Part 2:
Proximity sensors that detects the threats which allows the control unit to trigger the warhead if the threat is in the effective blast region.
Part 3:
The Radio Frequency(RF) seeker that searches and detects the radar waves bounced back from the threat, pointing towards it and thus allowing the control unit to guides the kill vehicle to the target.
Any type of RF seekers that's best available and any other type of seekers that best suits the purpose can be used.
Instead of using seekers if advanced enough the kill vehicle can be guided by the ships radar and tracking system to the target. Thus, reducing the cost required by a lot. But this can be an issue when if faced with multiple incoming
threats

Figure 6 shows the way the kill vehicle is launched from the launcher and starts to take the flight.
Parti:
The kill vehicle is launched from a canister fitted inside the launcher either by a pressurised gas or by exploding small explosives.
The launcher can be an independent one with data given by the ships radar and tracking systems to guide and launch the kill vehicle or attached to an independent launcher or CIWS with its own tracking and guiding system.
Part 2:
Soon after the kill vehicle is released from the launcher the folded wings are released and the rocket motors ignited to its full thrust capacity. Shooting the kill vehicle to a great velocity. Parallel to this the stability control fins as shown in Figure 3 starts controlling the roll and pitch of the kill vehicle. The burnout will occur in less than 2-3 seconds.
Part 3:
As parallel to burn out and shooting the kill vehicle to the desired velocity the motor unit is separated and the folded wings in the back of the unit as shown in Figure 3 will be unfolded to maintain stability. Along with this both the attitude motors shown in Figure 4, the RF seeker and proximity sensors shown in Figure 5 are engaged and guides the kill vehicle to the target. Once the proximity sensor detects the presence of the target in the blast region, the control unit triggers the explosive to destroy the target.
Figure 7 shows a simple method through which an incoming threat is tracked and neutralised by using the CIKVS.
Parti:
The angle at which the incoming threat is approached is calculated.
Part 2: ^/^vSa***-

Calculating the velocity of the ship and other necessary data's along with the threat's velocity, angle, direction etc. a trajectory and a possible contact point at which the missile would hit the ship is assumed.
Part 3:
Knowing the trajectory of the threat, a possible intercepting point where the kill vehicle could intercept the threat is assumed and the launcher launches the kill vehicle at that direction and angle. On closing to the target, the kill vehicle would do the necessary hard manoeuvres required even if the threat make changes in its trajectory as an evading trick and will destroy the target.
Part 4:
Incoming threat.
Part 5:
Friendly ship.
Part 6:
The assumed point at which the missile would hit the ship.
Part 7:
The assumed area where the kill vehicle could be able to intercept the threat.
The above description of a basic design is able to show the invention from the conceptive point of view, in a way that others, by using the art, can easily modify and/or adapt in different applications this specific design without further research and without going apart from the invention concept, and therefore it is intended that these adaptations and transformations will be considered as equivalent to this specific realization. The means and materials to make the many described functions can be various in nature without exiting the area of the invention. It is intended that the expressions or the terminology use have a simple descriptive aim and therefore not limiting.

While a preferred embodiment of the present invention has been
described hereinabove, it is intended that all matter contained in the above
description and shown in the accompanying drawings be interpreted as
illustrative and not in a limiting sense and that all modifications, constructions
and arrangements which fall within the scope and spirit of the invention may be j

I Claim,
1. A close-in kill vehicle system wherein the Warhead placed in between altitude control motors on both front and back along with RF seeker, proximity sensors and motor-controlled fins for roll and pitch movement control and rocket motors to boost the velocity can be used to destroy anti-ship missiles and threats of such with high manoeuvrability at a very close range between 80-300 metres.
2. A close-in kill vehicle system claimed in claim 1 characterized by the Hard manoeuvres in all directions, pitch and yaw movement is possible with two attitude control motors having four nozzles and motor-controlled opening and closing mechanisms to cut off thrusts through each nozzle independently, with thrust provided from a single propellent configuration where the thrust formed is converged in a small chamber and distributed sideways through four nozzles.
3. A close-in kill vehicle system claimed in claim 1 characterized by the Attitude control motors with individual small solid rocket motors packed together can also be used.
4. A close-in kill vehicle system claimed in claim 1 characterized RF seeker with proximity sensors and other necessary guidance systems can be used to track and hit the target or proximity sensors with inertial navigation system andother guidance systems with live data feed from the ships Radar and tracking systems can be used.
5. A close-in kill vehicle system claimed in claim 1 characterized The rocket motors with high thrust capacity is separated after shooting the kill vehicle to a great velocity, thus reducing the dead weight for high manoeuvrability and helps to balance the CP and CG for better stability.
6. A close-in kill vehicle system claimed in claim 1 characterized Foldable
F 0. F F I wifigs @rg- gr^vjcjed botfLon the rocket motor unit and at the rear end of

the kill vehicle for balancing the CP and stability of the kill vehicle during its flight and the first set are deployed when released from the launcher and the latter when rocket motor unit is separated.
7. A close-in kill vehicle system claimed in claim 1 characterized Canister launchers are used to launch the kill vehicles to shorten the reaction time, which can be pressurized gas launched or small explosive powered.
8. A close-in kill vehicle system claimed in claim 1 characterized Two launchers with kill vehicles, placed on both sides or on the front and back of an average vessel like Frigate, Destroyers etc. can provide a 360-degree protection from anti-ship missiles or threats of such whereas a single launcher can provide 360-degree protection for a small vessel like coast guard ships etc. due to the kill vehicles high manoeuvrability.
9. Another embodiment of the close-in kill vehicle system as claimed in claim 1 neglecting the rocket motors unit as show in figure 2 and instead using a rocket motor powered launcher release mechanism along with new attitude control motors similar to the ones as shown in figure 4 with nozzles tilted slightly by an angle of 5 or 10 Degree such that it can also assist in the forward motion of the kill vehicle as soon as it is ejected from the launcher can be used so as to decrease the engagement time and to neutralize threats at a much closer range.
io. Yet another embodiment of the close-in kill vehicle system as claimed in claim 1 is by using an extended rocket motor configuration by excluding the part 1, thus, making it capable of neutralizing highly maneuverable threats at a range of 30-50 km by using guidance info from AWACS early warning systems, ships radar or satellites.