Description: Field of Invention
The present invention pertains to have a human controlled RPG (Rocket Propelled Grenade) to target aerial-flying machines which are hard to target from ground and without any onboard pilot. This human controlled flying machine can be made to operate at places which are difficult to reach by land vehicles and engage any flying target.
Background of the Invention
RPGs are usually a shoulder or muscle fired missile weapon to target mostly tanks and sometimes aircraft. These RPGs are usually reusable and are recoilless. The only problem with the RPGs is its range. The operator is expected to go close to the target and fire because these RPGs have a range typically from 200m to 1000m and weight ranging from 2kg to 12 kg depending on the type and operation. Always going close to the target and firing keeps the operator of RPG at risk of getting caught and or be killed especially during a military operation.
There exists hand held rocket launcher for instance EP0119569A2, Multi -purpose missile launcher system for military land vehicle US6584881B1. Incorporating a smaller weapon system onto a military land movable vehicle by means of a rotating torrent arrangement is mentioned US4574685. Design and use of multi rocket launching systems on ships was performed US 4063485 and 4305325. The draw back noted in both EP0119569A2 and US6584881B1 is that the aerial target could not be engaged instantly to avoid any severe damage or disaster to the person operating the RPG and moreover there should be an immediate counter attack facility to engage the flying target and must also be capable to move and travel to places that are not easy to reach. The disadvantage of having only short-range rockets is mentioned in US4574685. Launcher systems that can be fixed and position able on ships are mentioned in US 40635485 and 4305325. In all the above, there is no instant mechanism to chase and kill or to engage the flying target instantly. It is there by a need of the hour to have effective and efficient multi rocket launcher that can be piloted remotely and aim at the flying or moving land targets. It is equally important to ensure that the whole drone, the multi rocket launcher, operates even if one rocket fails to fire or be launched.
The present multi-Rocket launcher can be operated remotely and at a time only a maximum of two RPGs (rocket propelled grenade) can be fired from the air borne vehicle, drone. The RPGs launcher onboard are reusable and can be instantly fired or triggered remotely. The launch tube is of square cross-section and they can be loaded or unloaded.
At the time of military operation, there are many uncertainties that need to be addressed. One such uncertainty is the functioning of the rocket launcher. If one rocket in the launcher fails to be fired, the other launcher could be used and no damage could be done to the whole multi-rocket launcher, drone.
Keeping the lives of the military personnel and security of the country on top priority, avoiding severe damage to property and instant engagement of aerial targets the present innovation is an ultimate solution that is also a cost-effective proposal since a pair of reusable rocket launchers are used. The present multi rocket launcher can be operated remotely without an onboard pilot and helps destroy the flying or moving land targets effectively. The operation of the multi -launcher is discussed in the following sections.
Summary of the Invention
Keeping in view the above-mentioned drawbacks, the present invention aims at instantly engaging the flying targets or moving land targets, if necessary, go close to target and chase to kill. Sometimes there could be only data collection by camera deployed on the multi rocket launcher, like knowing the position of land moving targets or details pertaining to flying targets.
The specific objective of the invention is to design a multi launcher without any pilot onboard capable of targeting maximum of two flying machines or moving land targets at once. The launchers are attached to the platform that can rotate 360 and point the target instantly. The launchers attached to the platform can also be rotated there by improving the strike capability of the multi rocket launcher.
A further specific objective of the invention is to engage the flying target at all weather conditions.
Brief Description of Drawings
The invention will be described in detail with reference to the exemplary embodiments shown in the figures wherein:
Figure 1 Design representation of the human directed multi rocket launcher (Rotor type)
Figure 2 Design representation of enlarged view of multi launcher with rotating platform.
Detailed Description of the Invention
The embodiments of the present disclosure provide a clear technical picture of the multi rocket launcher without a pilot on board. The multi rocket launcher is designed to fulfill the following criteria
An efficient multiple rocket launcher that could target flying and land moving vehicles is the need of the hour. In order to get a good overall aerial view, there should be a 360-degree aerial view (deployed camera) 1, ready to engage the flying Target or ground moving vehicles instantly. The Airborne rocket launcher can be made to chase and kill target. A rotating platform 3a within the stationary platform3 that carries the rocket launchers for easy selection of the target. Flight controller, the Pixhawk 1 Flight controller onboard that can also enable autopilot mode is deployed. A combination of transmitter FrSky Taranis X9D plus transmitter and a receiver X8R. This combination is good for large range. There are also many channel options in the Radio transmitter and receiver.
The basic idea of choosing such a transmitter and receiver combination is to have an increased range of operational ability. The overall components and materials used to makeup the whole multi rocket launcher system is to have advanced features with as less onboard weight as possible.
All the electronics components are carefully selected after working on real time prototypes and the best that are available in the market are incorporated and stated in the present work.
Apart from the latest electronics and hardware system, lot of care is taken to let out the harmful gases at the time of launch and also the plumes from the launched RPGs not to interfere with the multi-rocket launcher components like that of rotors 4 and rotor arm 5. The complete multi -rocket launcher is designed in such a way that at the time of firing the RPGs, the flying multi-rocket launcher is not destabilized. There can be no vertical RPG launch but only horizontal launch in 360 degrees.
Launcher tube 2 on board are designed in such a way that at the time of landing the multi launcher (drone) no harm or damage to be incurred on the launcher tube 2. The lid of the launcher tube 2 to be opened at the time of firing.
With reference to the figure 1 the “Human Directed multi rocket launcher” is provided in accordance to an embodiment of the present disclosure. There is a stationary platform 3 (decagonal in construction) inside which is a rotating platform 3a figure 2 for which the reusable launcher tube 2 are attached. There are four rotors 4 placed on four different corners to account for stability and to carry the payload, launcher tube 2 either loaded or unloaded with RPGs. A high-resolution camera 1 is placed to get the 360-degree aerial view.
The decagonal platform 3 is chosen after careful consideration of all the standard geometry aerodynamic analysis and found that for this particular mission of flying multi -rocket launcher there is good stability and can hold technically the two rocket launcher tubes 2 with safe distance between them. The platform 3a within the platform 3 has all the requirements to hold the RPG launcher tubes 2 and is rotatable. The platform 3 has a thickness but is left hollow to reduce the weight of the overall system. All the rotor arm 5 (four rotor arms) join at the center of the platform in ‘X’ format through the center of the decagonal sides. The camera 1 is then mounted on the common center where the rotor arms all meet. The size of the platform 3 is chosen just little more than the size of the camera 1 and to make sure that the camera 1 is placed to get the overall aerial view. The material for the platform is carbon fiber reinforced composite material that can take up good thermal conditions and apart from that should be strong and has less weight.
The RPGs are placed in the reusable launcher tubes 2 that have the rocket motors to propel the RPG towards the target. The complete flight at the time of launch is stabilized by the rotors 4. The camera 1 helps to identify the targets in all directions. An electronic speed controller ESC is used that could be used to vary the RPM of the motor. The motor RPM is varied as per the need and requirement.
Upon identification of the target, the rockets in reusable launcher tubes 2 are fired depending on the requirement say either 2a or 2b as shown in figure 2. If there is a target coming from behind then the plat form 3a within the platform 3 are rotated and then the rockets are fired. This ensures a 360-degree strike capability of the flying multi-rocket launcher. The platform 3a at the bottom can simply rotate inside the platform 3 where the rotor arms and camera are fixed. The rotation of the platform 3a takes place about an axis perpendicular to the platform 3. The overall flying multiple rocket launcher drone can be dismantled into components there by it is easy to be carried to any location.
The Centre location of the whole multi -rocket launcher is calculated as per the center location of the Decagonal platform and this center is made to coincide with the center of the rotor arms5 and camera1. Thus, with this a good stability is ensured at the time of flight and also at the time of firing. The two rocket launcher tubes 2 are placed at an equal distance in horizontal from the center of the system. Different length of the rocket launcher tube 2 could be attached depending upon the mission requirements.
The arm length 5 is calculated by taking in the following considerations –
Propeller (rotors) dimensions. Two rotating rotors and their clearance with respect to the rotors on the other arms and finally, Clearance from each other parts of the rocket launcher. All these calculations make sure that the rocket launcher design ensures and help in good realization of the flying multi-rocket launcher prototype in action.
The size of the propeller or rotor blades 4 and material are chosen in such a way that maximum overall lift to weight ratio is achieved. The weight of the rotors is kept at as less weight as possible and the materials used were that of carbon fiber and epoxy. The rotor blades 4 are made sure to be very high thermal resistant. The rotors 4 were run using BLDC outer runner motors that has no brushers and produces about 4440 maximum revolutions per minute. A maximum thrust that could be attained is about 13392 grams. The rotor arms 5 are arranged in ‘X’ fashion to account for good strength and support from the platform and also to support the rotors 4. As a result, more length of rotor arm can also be included for overall support of the platform 3 if needed.
In the complete picture of the flying multi -rocket launcher (drone), the platform 3a within the platform 3 and the rotors are the only rotating parts. The launcher tubes 2 are rotated because they are attached to platform 3a with is removable and replaceable.
The two-launcher tube 2 upon unloaded (after the RPGs being fired) can quickly be replaced with the loaded launcher tubes 2. This replacement to be manual operation. In general, the launcher tube 2 could be of any cross section but should account for the stability of the flying multi-rocket launcher.
The advantage of this flying multi-rocket launcher is that -the targets could be chased and engaged effectively. Under failure of one launcher tube 2a or 2b the other tube is still operational. The whole multi-rocket launcher system is all weather friendly. The only disadvantage of this model is that the reusable launchers have to be loaded again after they are put to use.
7 Claims & 2 Figures
Equivalents
The human directed multi rocket launcher, the present invention discloses its usage in terms of engaging and firing the RPGs without the onboard pilot. The same can also be used to guard the borders, provide security to VIPs and monitor any possible threats across by the border countries. , Claims: The scope of the invention is defined by the following claims:

Claim:
1. Human directed multi rocket launcher comprises of:
a) A platform 3 (decagonal in construction) that can hold the rotors 4 and the rotor arms 5 in place and within which a rotating circular platform 3a is placed for which the two reusable launchers 2 (2a and 2b) are attached.
b) A camera is placed over the platform 3 (top side) to get the complete aerial view.
c) The two reusable launchers (2a and 2b) are attached to platform 3a inside platform 3 to engage or fire at the target that is coming from any direction instantly.
d) The movement and stability of the vehicle is completely controlled by controlling the rotors 4.
2. As mentioned in claim 1, the rotors are fixed perfectly and are responsible for the stability of the platform at the time of firing the rockets.
3. According to claim 1, the two rocket reusable launchers 2a and 2b can be rotated in 360-degree direction and work in synchronous with the camera 1 onboard.
4. As per claim 1, the ground pilot to monitor the situation and engage the rockets in the reusable launchers 2a and 2b.
5. As per claim 1, upon urgent requirement for the deployment of the multi launcher -the rotors 4 help the launcher to be deployed instantly.
6. As per claim 1, the stability of the launcher is taken care by the ground pilot by controlling the rotors 4.
7. As per claim 1, the combined usage of the two reusable launchers helps avoid any disaster and safe lives and property during a military operation.