Projectile Range Reduction via Pyrotechnic Ogive
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Solution Overview
Problem
Existing ammunition and training projectiles lack reliable self-destruction mechanisms, posing safety risks during exercises and potentially leaving unexploded duds on the battlefield, and they do not effectively reduce speed and range after a predefined combat distance is exceeded.
Innovation Solution
The design incorporates a projectile with a changeable air resistance mechanism, featuring a screw-in or snap-in ogive with a predetermined breaking point and a pressure-generating charge, or a nozzle that opens to alter the trajectory, utilizing pyrotechnic delay elements and tracers to control the burning time and ensure the projectile decelerates quickly after reaching a set distance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a training projectile is designed to maintain ballistic equivalence to combat ammunition over extended ranges, then training realism and effectiveness are improved, but safety risks increase due to potential uncontrolled flight and unexploded ordnance
Solution Approach 1:
The patent applies preliminary action by pre-programming the projectile with a timer mechanism that anticipates the end of the combat range. The timer is set to automatically initiate the self-destruction sequence at a predetermined time before the projectile can exceed the safe range, ensuring proactive safety intervention rather than reactive response.
Solution Approach 2:
The patent implements self-service through the self-destruction mechanism that automatically activates when the predetermined time elapses. The projectile uses its own internal timer and explosive charge to terminate its flight path without requiring external control systems or manual intervention, enabling autonomous safety management.
2Reliability
If a self-destruction mechanism is activated at the beginning of the mission, then safety is improved by preventing unexploded ordnance, but the projectile cannot complete its full training function
Solution Approach 1:
The timer mechanism is pre-configured with a predetermined time value that corresponds to the expected flight duration within safe ranges. This preliminary timing setup ensures the self-destruction function activates only after the projectile has completed its legitimate training mission, preventing premature termination while maintaining safety.
Solution Approach 2:
The patent utilizes parameter changes by adjusting the timer duration based on the specific training scenario and combat range parameters. The predetermined time can be modified to match different operational conditions, allowing the system to adapt the self-destruction timing to various training requirements while maintaining safety margins.
3Stability of the object's composition
If the projectile ogive is made intact to maintain aerodynamic performance, then flight stability is improved, but the ability to control and limit range is reduced
Solution Approach 1:
The patent applies segmentation by dividing the ogive into functional segments: an intact front portion that maintains aerodynamic stability during flight, and a rear portion containing the timer and explosive charge that enables range control. This segmentation allows the ogive to simultaneously achieve flight stability and controllable range limitation.
Solution Approach 2:
The patent implements dynamics by making the ogive transition from an intact static structure to a dynamically changing configuration. The timer monitors flight duration and triggers explosive charges that actively modify the ogive's structure mid-flight, enabling dynamic range control while maintaining stability during the intact phase.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution maintains ballistic equality with combat ammunition up to a predefined range while ensuring the projectile does not exceed a set range, enhancing safety by reducing speed and trajectory, thus preventing unexploded remnants and protecting soldiers during training exercises.
Implementation Method 1
utilizing pyrotechnic delay elements and tracers to control the burning time
Implementation Method 2
a pressure-generating charge is provided in the projectile body, which can act on the projectile ogive with the predetermined breaking point and tear or open it
Implementation Method 3
increasing the projectiles air resistance after reaching this training or main combat range
Data Source
Figure 1~4
AI summary
The invention relates to a projectile (1, 11, 21), also as a training projectile which, on the one hand, has ballistic equality compared to the inserted ammunition or training ammunition up to a pre-defined battle distance, on the other hand, however, decreases the velocity significantly faster when said distance is exceeded and thus has a significantly restricted total range relative to the inserted ammunition. The projectile (1, 11, 21) comprises a projectile body (3, 13, 23), a projectile ogive (2, 12, 22), and at least one tracer (5, 15, 25) and/or at least one delay element (6, 16, 26). In order to reduce the velocity and the trajectory, a pressure-generating charge (7, 17, 27), according to the invention, is incorporated in the projectile body (3, 13, 23), which pressure-generating charge is functionally connected to the at least one tracer (5, 5, 25) and/or the at least one delay element (6, 216, 26). After burning of the tracer (5, 15, 25) or the delay charge inside the delay element (6, 16, 26), the initiation of the charge (7, 17, 27) takes place which then acts on the projectile (1, 11, 21) in such a way that after a set flying time (t) is reached, the trajectory of the projectile (1, 11, 21) is influenced.