SUBTERRANEAN OBSTACLE PLACEMENT (S.T.O.P.)
Control the Underground Battlespace
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System Features
Core Capabilities
Rapid Deployment
Expands and locks into place within seconds.
Modular Design
Adaptable for different tunnel sizes, shapes, and surface conditions.
Patented Expansion System
Mechanical inflation mechanism ensures uniform sealing in variable tunnel diameters.
Reusable & Recoverable
Deploy, secure, and remove as needed.
Rugged Construction
Built from high-strength composite and reinforced alloys.
Low Training Requirement
Simple to operate under combat or rescue conditions.
MISSION VALUE
Operational Advantages
Provides immediate control over enemy tunnels and subterranean access points.
Prevents infiltration, escape, or reentry by hostile forces.
Enables safe sealing of unstable or compromised tunnels during rescue or EOD operations.
Reduces risk to personnel by eliminating the need for close-proximity demolition or construction.
Can be integrated into larger operational plans involving mapping (TinkerBell) and visual reconnaissance (HOOK).
TECHNICAL DATA
Technical Specifications
Deployment Time
< 60 sec
Weight
Dependent on tunnel size (typ. 15–25 kg)
Material Composition
Composite and reinforced metal framework
Operation
Manual or mechanical inflation
Scan Rate
640 000 pts/sec
Reusability
100+ deployment cycles (field-tested)
Temperature Tolerance
-20°C to +60°C
Resistance
Water, debris, and chemical exposure
Compatible Environments
Soil, concrete, limestone, and mixed substrata
Data Output
3D point cloud
SUBTERRANEAN OBSTACLE PLACEMENT (S.T.O.P.)
Control the Underground Battlespace
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Operational Use Cases
Field-Proven Deployments
Urban Structural Collapse Response
Rapid post-event 3D mapping and structural assessment within a partially collapsed commercial residential structure. Spatial intelligence supported debris-field analysis, responder safety, and coordinated search operations in unstable conditions.
Large-Scale Seismic Disaster Response
Deployment of real-time mapping systems in widespread structural collapse environments following a major seismic event. Enabled identification of survivable voids, safe access routes, and operational coordination across rescue teams.
Post-Strike Structural Assessment
Real-time spatial intelligence collection inside recently impacted urban structures following kinetic strike events. Mapping systems assisted with structural analysis, hazard identification, and survivable space assessment in unstable environments.
Subterranean Border Security Operations
Detection and assessment of underground transit and smuggling pathways in support of counter-interdiction and border security missions. Systems provided spatial awareness and tunnel intelligence prior to personnel entry.
Cross-Border Tunnel Detection Operations
Subterranean reconnaissance and mapping support during underground infrastructure detection and assessment operations. Enabled operational understanding of confined underground pathways and structural conditions.
Defense & Military Engineering
Tunnel warfare, counter-infiltration, and border control.
Infrastructure Protection
Temporary sealing during inspection or remediation projects.
Law Enforcement & Homeland Security
Rapid tunnel sealing in cross-border interdictions.
Rescue & Emergency Response
Isolation of unstable or contaminated underground spaces.
USE CASES
Applications
PRODUCT OVERVIEW
Overview
The Subterranean Obstacle Placement (S.T.O.P.) Tactical Tunnel Blocker is a patented, rapid-deployment subterranean denial system engineered to provide military, law enforcement, and security forces with immediate control over underground access points.
Developed to address the growing challenges of tunnel-based operations, cross-border infiltration, and subterranean maneuver, S.T.O.P.™ provides a scalable mechanical solution for sealing, stabilizing, and securing underground passages in minutes.
Designed for durability, simplicity, and rapid deployment under pressure, the system enables operators to isolate and control hostile or unstable subterranean environments without reliance on explosives, permanent infrastructure, or complex machinery.
When integrated with CS3's spatial intelligence and reconnaissance systems, S.T.O.P.™ forms part of a layered operational framework that enables teams to detect, assess, and control underground threats with greater speed, safety, and confidence.
deployment
Man-portable | Rapid-deployment | Modular
Enviormment
Subterranean | Confined space | Contested
Output
Access Denial | Area Control | Containment
Use Case
Interdiction | Force Protection | Tunnel Control
Setup Time
< 30s
Weight
6 kg
Accuracy
±10mm
