ANTI-DRONE VORTEX CANNON

Electrostatic Neutralization System

Anti-Drone System Technical Diagram

Drone Target RADAR PSI TANK VANNE COMPRESSION ORIFICE HV ELECTRODES HT GUIDANCE toward target 0 1 2 3 4 5 6 7 HV GENERATOR TRACKING COMPUTER
00

Detection System

Radar, IR camera, and lidar for detection and tracking of drones. Acquisition automatique de target up to 500m. Sensor fusion for identification and real-time tracking.

01

Compressed Air Tank

Pressurized cylinder at high pressure (8-50 bar). Capacity matched to the targeted drone category. Pneumatic energy converted into an anti-drone impulse.

02

Release Valve

Fast solenoid valve with rapid opening synchronized with the tracking system. Opening time < 50 ms.

03

Compression Chamber

Conical geometry optimized to stabilize flow. Automatic lead calculation based on target speed.

04

Exit Orifice

Sharpened edge creates strong shear. Variable diameter matched to target drone size. Optimal ratio: D_orifice / D_chamber ~= 0.3-0.4.

05

Electrostatic System

Electrodes at 10-100 kV for ionization and guidance. Enables in-flight steering toward the target.

06

Guided Vortex

Toroidal ring electrostatically guided toward the drone. Trajectory adjusted in real time according to tracking data.

07

Drone Target

Drone on approach locked by the system. Vortex impact causes destabilization, gyroscopic disturbance, loss of control, and neutralization.

Anti-Drone Operating Cycle

0

Detection

Radar, IR camera, and lidar detect and acquire the target.

1

Pressurization

Tank charged according to detected drone category.

2

Activation HT

Electrostatic field established for guidance.

3

Release

Shot synchronized with calculated trajectory.

4

Training

Toroidal vortex created at the orifice.

5

Guidance

Guided vortex steered toward the target by the electric field.

?? Drone Vulnerability Analysis

The toroidal vortex leverages several critical drone vulnerabilities. The impact of a rotating air ring at high speed can disrupt stabilization and navigation systems in a non-destructive but effective way.
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Gyroscopic Destabilization

The vortex applies torque to the drone airframe. Gyroscopes saturate and can no longer compensate, causing attitude loss.

effectiveness: 95%
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Propeller/Rotor Disruption

The swirling airflow from the vortex unbalances lift on rotor sets. Each propeller receives a different flow, creating a critical imbalance.

effectiveness: 90%
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IMU Overload

The inertial measurement unit receives data outside its operating range. Abrupt acceleration and rotation can saturate onboard sensors.

effectiveness: 85%
?

GPS Signal Loss

Erratic motion induced by the vortex disrupts GPS lock. The drone loses positional reference and enters emergency mode.

effectiveness: 70%

?? Impact Diagram on Drone Systems

Target drone VORTEX GYROSCOPE Saturation ?? IMU Overload ?? ROTORS Imbalance ?? GPS/GNSS Lock lost ?? CONTROLLER Failsafe ??

? Tactical Engagement Scenarios

?

Civil Protection

Protection of public events, concerts, and sports gatherings from surveillance or attack drones.

Distance engagement 15-50 m
Response time 2-5 s
targets typiques Cat. 0-1
Success rate 92%
??

Military perimeter

Defense of military bases, command posts, and sensitive zones against reconnaissance or armed drones.

Distance engagement 30-100 m
Response time 3-8 s
Typical targets Cat. 1-3
Success rate 75%
??

Critical Infrastructure

Protection of power plants, airports, and nuclear facilities against aerial intrusions.

Distance engagement 50-150 m
Response time 5-15 s
Typical targets Cat. 1-4
Success rate 65%
??

Approach Interception

Neutralization of fast drones during final approach. Requires a multi-vortex system and advanced tracking.

Distance engagement 80-200 m
Response time 1-3 s
Typical targets Cat. 3-4
Success rate 45%

?? Engagement Distance and Timing Table

Scenario Min distance Max distance Detection time Engagement Time Firing Window
Civil Protection 15 m 50 m 0.5 s 2.0 s 5-10 s
Military perimeter 30 m 100 m 1.0 s 3.5 s 3-8 s
Critical Infrastructure 50 m 150 m 2.0 s 5.0 s 2-5 s
Rapid Interception 80 m 200 m 0.3 s 1.5 s 0.5-2 s

?? Comparison with Other Anti-Drone Systems

System Cost Range Lethality Civil legality Effectiveness Weather Collateral damage
RF Jammer $$$ 1-5 km None Restricted 60-80% Excellent Interference
Laser HELWS $$$$$ 2-10 km Destructive Military only 85-95% Sensitive Fires
Net Gun $ 10-50 m None Authorized 70-85% Average None
Anti-Drone Rifle $$ 500-2000 m None Variable 50-70% Excellent Interference
Interceptor Drone $$$ 1-3 km Variable Variable 75-90% Average Low
Vortex Cannon $$ 15-200 m None Authorized 75-95% Average None
?? Key advantage of the Vortex Cannon: Non-lethal, communication-safe solution. Can be used in civil environments with low legal risk. Near-zero cost per shot (compressed air).

?? effectiveness Simulations

Vortex attenuation vs distance

Distance (m) Energy (%) 0 50 100 150 200 100% 50% 0% Optimal zone

Neutralization Probability by category

98% Cat.0 92% Cat.1 75% Cat.2 45% Cat.3 25% Cat.4

Wind Effect on Trajectory

0 m/s (vent nul) 5 m/s (crosswind) 10 m/s (crosswind) VENT

Cumulative Probability (Multiple Shots)

Number of shots 1 2 3 4 5 6 P0=90% P0=75% P0=50% P0=25%
Pcum = 1 - (1 - P0)n

?? Complete System Technical Specifications

??
Total Weight 45-120 kg
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Dimensions (LxWxH) 1.2–0.8–1.5 m
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Power Supply 24-48V DC or 230V AC
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Rate of Fire 6-20 tirs/min
??
range Max 50-200 m
?
HV Power 10-100 kV
??
Deployment Time 3-10 min
??
range 50-200 tirs/charge

? Operating Modes

??

Automatic Mode

detection, Acquisition and engagement fully autonomous. Minimal human intervention. Ideal for 24/7 protection.

??

Manual Mode

Operator controls aim and fire. The system provides assistance and lead calculation. Human decision required.

?

Semi-Auto Mode

Detection and tracking are automatic. The operator validates engagement, and firing is triggered by manual command.

?? Detection System & Tracking

?? Radar

• Range: 100-500 m

• Frequency: 24 GHz / 77 GHz

• Resolution: ±0.5°

• Refresh rate: 20 Hz

• Detection RCS: > 0.01 m²

?? Infrared Camera

• Resolution: 640–512 px

• Spectral band: 8-14 µm (LWIR)

• FOV: 40° × 30°

• NETD: < 50 mK

• Frame rate: 30 fps

Lidar

• Range: 50-300 m

• Points/second: 300k pts/s

• Precision: ±2 cm

• FOV: 120° × 25°

• Wavelength: 905 nm

Sensor Fusion

• Algorithm: Extended Kalman

• Latency: < 50 ms

• Simultaneous targets: up to 20

• Classification: ML/CNN

• Precision tracking: ±10 cm @ 100 m

?? Target Acquisition and Tracking Process

Detection Radar + IR + Lidar CLASSIFICATION CNN / ML TRACKING Kalman Filter PREDICTION Trajectory + Lead FIRE CONTROL ~10ms ~20ms ~15ms ~5ms TOTAL LATENCY: <50ms

?? Calculations by Drone category

This section presents detailed calculations to size the Vortex Cannon for each target drone type. Parameters are calculated to disrupt/neutralize effectively for each category, from nano drones to fast fixed-wing drones.

?? Core Formulas

Ekinetic = ½ m v²
Drone kinetic energy
Evortex = ½ ρ Γ² R ln(8R/a)
Vortex-ring energy
PTANK = (Evortex — ?) / Vchambre
Required pressure (eta = efficiency)
Uelectrostatic = v(2 — Fguidance — d / (e0 — A))
Confinement voltage
category 0

Nano Drone

FPV racing, nano-espion, Cinewhoop
MINIMAL THREAT

Physical Characteristics

Mass 50 - 250 g typ. 150 g
Wingspan 10 - 25 cm typ. 18 cm
speed 20 - 50 m/s typ. 35 m/s
Kinetic energy 10 - 312 J typ. 92 J

Vortex Cannon Parameters

Required vortex energy 5 - 50 J ~20% Edrone
Compressed air pressure 4 - 8 bar ~6 bar optimal
Electrostatic voltage 8 - 15 kV ~12 kV optimal
Vortex diameter 15 - 30 cm > Wingspan drone
Effective range 10 - 25 m ideal conditions
Tank volume 1 - 2 L ~1.5 L recommended
Recharge time 0.8 - 1.5 s 12V compressor
neutralization effectiveness
98%
Note: Nano-drones are highly sensitive to aerodynamic disturbances. Even a low-energy vortex is enough to cause total loss of control.
category 1

Small Drone

DJI Mavic, reconnaissance drones
LOW THREAT

Physical Characteristics

Mass 0.5 - 2 kg typ. 1 kg
Wingspan 30 - 50 cm typ. 40 cm
speed 15 - 20 m/s typ. 17 m/s
Kinetic energy 56 - 400 J typ. 145 J

Vortex Cannon Parameters

Required vortex energy 50 - 150 J ~35% Edrone
Compressed air pressure 8 - 12 bar ~10 bar optimal
Electrostatic voltage 15 - 25 kV ~20 kV optimal
Vortex diameter 30 - 50 cm ≤ Wingspan drone
Effective range 15 - 30 m ideal conditions
Tank volume 2 - 4 L ~3 L recommended
Recharge time 1.5 - 3 s 12V compressor
neutralization effectiveness
92%
category 2

Medium Drone

Military tactical drones
MEDIUM THREAT

Physical Characteristics

Mass 5 - 15 kg typ. 10 kg
Wingspan 1 - 2 m typ. 1.5 m
speed 20 - 30 m/s typ. 25 m/s
Kinetic energy 1000 - 6750 J typ. 3125 J

Vortex Cannon Parameters

Required vortex energy 400 - 2500 J ~40% Edrone
Compressed air pressure 15 - 22 bar ~18 bar optimal
Electrostatic voltage 30 - 45 kV ~35 kV optimal
Vortex diameter 60 - 100 cm ≈ 0.5× Wingspan
Effective range 25 - 50 m ideal conditions
Tank volume 8 - 15 L ~12 L recommended
Recharge time 4 - 8 s Industrial compressor
neutralization effectiveness
75%
category 3

Large Drone

Shahed-136, drones kamikaze
HIGH THREAT

Physical Characteristics

Mass 150 - 200 kg typ. 175 kg
Wingspan 2.5 - 3.5 m typ. 3 m
speed 50 - 70 m/s typ. 60 m/s
Kinetic energy 187 - 490 kJ typ. 315 kJ

Vortex Cannon Parameters

Required vortex energy 50 - 150 kJ ~45% Edrone
Compressed air pressure 30 - 50 bar ~40 bar optimal
Electrostatic voltage 60 - 100 kV ~80 kV optimal
Vortex diameter 120 - 180 cm ≈ 0.5× Wingspan
Effective range 40 - 80 m ideal conditions
Tank volume 50 - 100 L ~75 L recommended
Recharge time 15 - 30 s High-capacity compressor
neutralization effectiveness
45%
? Partial neutralization - a multi-vortex system or combined countermeasures are recommended.
category 4

Fixed-Wing Drone

Aile volante rapide, drone de frappe
EXTREME THREAT

Physical Characteristics

Mass 20 - 100 kg typ. 50 kg
Wingspan 2 - 4 m typ. 3 m
speed 80 - 150 m/s typ. 100 m/s
Kinetic energy 64 - 1125 kJ typ. 250 kJ

Vortex Cannon Parameters

Required vortex energy 30 - 500 kJ ~50% Edrone
Compressed air pressure 40 - 60 bar ~50 bar optimal
Electrostatic voltage 80 - 120 kV ~100 kV optimal
Vortex diameter 100 - 200 cm grande surface impact
Effective range 60 - 150 m lead critique
Tank volume 80 - 150 L ~100 L recommended
Recharge time 20 - 45 s compresseur industriel
neutralization effectiveness
25%
? High speed means a reduced control window. Lead time is critical. Multi-vortex salvos are recommended.
Calcul Lead Time: At 100 m/s and 100 m range, lead time is under 1 second. Requires predictive tracking and anticipatory firing of 0.5-1.5 s.

?? Comparative Table - All Categories

Parameter Cat. 0 Nano Cat. 1 Small Cat. 2 Medium Cat. 3 Large Cat. 4 Fixed-Wing Unit
DRONE CHARACTERISTICS
Typical mass 0.15 1 10 175 50 kg
Typical speed 35 17 25 60 100 m/s
Kinetic energy 92 145 3,125 315,000 250,000 J
VORTEX CANNON PARAMETERS
Required pressure 6 10 18 40 50 bar
Voltage HT 12 20 35 80 100 kV
Effective range 18 25 40 60 100 m
Recharge time 1 2 6 22 35 s
effectiveness 98 92 75 45 25 %

? Atmospheric Effects

?? Wind Impact

Wind affects vortex trajectory and coherence. Compensation must be integrated into lead calculations.

No wind (0-2 m/s) range 100%
Light wind (2-5 m/s) range 90%
Moderate wind (5-10 m/s) range 70%
Strong wind (10-15 m/s) range 45%
Very strong wind (>15 m/s) Non recommended

?? Humidity Effect

Humidity affects vortex coherence and air ionization for electrostatic steering.

Humidity <30% Optimal (easy ionization)
Humidity 30-60% Good (standard)
Humidity 60-80% Moderate (+20% voltage)
Humidity >80% Degraded (+50% voltage)
Rain / Fog effectiveness reduced 50%

? Temperature Influence

Air density varies with temperature, affecting vortex energy and range.

Cold (-10 to 0 C) Density +10%, range +5%
Cool (0 to 15 C) Density +5%, optimal
Temperate (15 to 25 C) Standard (reference)
Hot (25 to 35 C) Density -5%, range -8%
Very hot (>35°C) Density -10%, range -15%
? = P / (R — T) — where ? = Density, T = temperature (K)

? Tactical Deployment Diagram

50m 100m 150m 200m CANON VORTEX ZONE ENGAGEMENT OPTIMALE DETECTION ZONE target 1 target 2 VORTEX LEGEND Zone engagement Detection zone Target drone 50 m TOP VIEW - TACTICAL DEPLOYMENT

?? Physical Principles

Toroidal Vortex Formation

When air is expelled abruptly through a circular orifice, a speed difference appears between the jet center (faster) and the edges (slowed by the orifice).

This shear generates rotation: the air rolls on itself and forms a torus. The circulation Gamma around the vortex core is:

G = ? v? — dl? — p — D — Vjet

Electrostatic Confinement and Guidance

The high-voltage electric field partially ionizes the air molecules. The electrostatic force applied to the charged vortex is:

F? = q — E? where E = V / d

This force enables guidance toward the target, compensating disturbances and adjusting trajectory in real time according to tracking-system data.

Ring Dynamics

A toroidal vortex can self-propel through mutual induction of its vorticity filaments. Its translation speed is:

U = G/(4pR) — [ln(8R/a) - 1/4]

where R = torus radius, a = core radius.

Key Anti-Drone Parameters

Pressure TANK 4-60 bar
Valve opening time < 50 ms
Tension ELECTRODES 8-120 kV
speed vortex 10-50 m/s
Typical range 10-200 m
Vortex diameter 15-200 cm
Tracking latency < 50 ms

Evidence Framework & Confidence

A
High Confidence
Fluid-dynamics and electrostatic first-principles equations shown on this page are grounded in established physics.
B
Medium Confidence
System-level anti-drone behavior inferred from model assumptions and simplified actuator-response constraints.
C
Medium-Low Confidence
Field effectiveness projections depend strongly on weather, sensor latency, target maneuvering, and operational context.

References & Source Anchors

  • Classical fluid mechanics literature covering vortex-ring formation and propagation.
  • Electrostatics and plasma-ionization references for high-voltage air interaction fundamentals.
  • Open counter-UAS engineering publications on tracking latency and engagement envelope constraints.
  • Public safety and systems-engineering standards for high-energy electro-mechanical prototypes.
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