Counter-UAS systems

The measured response to drone threats.

Sentinel is a mobile, layered counter-UAS system. It senses, decides and defeats unmanned aircraft, from FPV quadcopters to one-way attack drones, and a trained operator authorizes every engagement.

Four layersSense, decide, defeat and integrate in one system
Electronic defeat firstKinetic force only for confirmed hostile tracks
Five deployment formsFixed, border, vehicle, portable and covert
Human authorityAn operator authorizes every engagement
The problem

Cheap drones now cost less than the missiles used to stop them.

Unmanned aerial threats have inverted the economics of air defense. Drones are cheap, numerous and expendable; the interceptors traditionally used against them are not. Defending against massed raids with strategic missiles is an economic defeat, even when every shot hits.

One-way attack drones

Long-range attack drones strike infrastructure and installations at very low unit cost.

FPV and multicopter threats

Small, agile and cheap, used against forces, convoys and facilities.

Massed raids

Volume exhausts scarce and expensive interceptor inventories faster than they can be replaced.

Relative cost per engagement · indicative

Strategic surface-to-air interceptorHighest
Purpose-built drone interceptorHigh
Sentinel electronic defeatNear-zero marginal cost
Sentinel defeats most threats electronically and keeps kinetic effectors for the few that need them.
The Sentinel system

Sentinel brings every layer of drone defense into one system.

Sensors, command and control, countermeasures and effectors share one air picture, one engagement chain and one support organization, across every deployment form.

01 · Sense

Passive RF sensing, active radar and electro-optics build one air picture.

  • SENTINEL-GUARDIAN X-band AESA radar with 360° surveillance
  • RF detection, protocol classification and direction finding
  • EO/IR identification and evidence recording
  • Cooperative-traffic deconfliction (ADS-B)
02 · Fuse & decide

SENTINEL-C2 fuses every sensor into one picture and applies the human authorization gate.

  • Multi-sensor fusion and threat evaluation
  • Dual operator consoles
  • Engagement-authority model
  • Tamper-evident audit log
03 · Defeat

A graduated response: electronic defeat first, then the gun, then the interceptor as an option.

  • RF jamming and GNSS spoofing
  • Man-portable detect, jam and spoof unit
  • SENTINEL-RWS .50 cal remote weapon station
  • SENTINEL-1A interceptor (option)
04 · Integrate

SENTINEL-NET ties sensors, effectors, vehicles and command rooms into one network.

  • Encrypted datalink fabric
  • Inter-vehicle links
  • Integration with customer C2 (program-specific)
  • Training, simulation and through-life support

DETECT → TRACK → ENGAGE → ASSESS. Detection performance is target-size dependent. Kinetic effectors are reserved for confirmed hostile tracks.

Graduated response

Electronic defeat comes before any kinetic response.

Each step up the ladder is a deliberate operator decision. Most engagements end at the first step, at almost no marginal cost.

STEP 01

Electronic defeat

Soft-kill

RF jamming of control links and satellite navigation, and GNSS spoofing to divert or land navigation-dependent drones.

Lowest collateral risk in urban and infrastructure settings. Near-zero marginal cost.
STEP 02

SENTINEL-RWS

Close-in kinetic

A .50 cal remote weapon station with a tracker pod feeding the C2 fire solution. The kinetic effector of the base system.

Close-in defeat at gun-ammunition economics.
STEP 03 · OPTION

SENTINEL-1A

Guided interceptor

A guided interceptor on the same C2 and datalink, for threats beyond gun reach and for cooperative multi-round engagements against larger targets.

A fraction of the cost of a legacy interceptor round.

A human gate on every step. Every engagement passes a hard human-authorization gate. Escalation is a deliberate operator decision, never automatic.

SENTINEL-1A interceptor

Tactical hard-kill, when it is needed.

SENTINEL-1A is a pneumatically cold-launched, subsonic solid-rocket interceptor with a dual-mode imaging/radar seeker and a fragmentation warhead with continuous-rod ring. It is fired from a 24-round cassette-based launcher on a dedicated vehicle; cold launch enables vehicle-mounted and confined-site operation.

Interceptors share targeting data over the encrypted datalink, so several rounds can engage a larger threat cooperatively. Onboard automatic target recognition — a human authorizes every engagement.

“Tactical hard-kill at point-defense economics: the missing layer in layered defense.”Sentinel complements strategic air defense; it does not replace it
Engagement sequence

Every engagement follows the same loop.

01

Detect

Radar, passive RF and EO/IR sensing detect incoming drones; tracks are categorized and prioritized.

02

Track & classify

SENTINEL-C2 fuses tracks, classifies targets, predicts trajectories and proposes a response.

03 · HUMAN GATE

Authorize

The operator confirms the engagement and the effector. Release requires two independent sensors; the operator keeps abort authority throughout.

04

Engage

The authorized effector acts: jamming or spoofing first, the remote weapon station or the interceptor when required.

05

Assess

The outcome is reported to the operator, who decides on any re-engagement. Every step is logged.

One product line

One product line serves every type of site.

Five deployment forms are built from the same subsystems, so customers share one C2 core, one training pipeline and one spares pool.

Building

Fixed facilities

Rooftop detect-and-defeat suite: RF detection and direction finding, EO/IR, jamming and spoofing, and dual-console C2.

Fixed site

Perimeters & borders

Radar, EO/IR, RF detection, jamming and spoofing, SENTINEL-RWS and C2 for perimeters and border sites.

Vehicle

Mobile element

Two vehicles on LC79-class trucks: detection, countermeasures and C2, plus SENTINEL-RWS. An optional third vehicle adds the SENTINEL-1A launcher.

Portable

Dismounted teams

A man-portable detect, jam and spoof system for teams on foot.

Covert

Passive detection

Covert passive detection with drone and pilot geolocation.

Common to all five: subsystems, C2, training and spares. Training packages cover operators, maintainers and commanders, with train-the-trainer courses to build self-sustaining customer teams.

Applications

Built for the places drones actually reach.

Military installations

Bases, airfields and command posts, layered with existing air defense for low-altitude coverage.

Critical infrastructure

Energy, utilities, transport hubs and data centers, protected around the clock.

Borders & perimeters

Smuggling and surveillance drones detected and defeated along long, remote lines.

Forces on the move

Convoys and units protected by vehicle-mounted and portable elements.

Major events & government sites

Temporary and permanent protection where collateral risk must stay lowest.

How we engineer

A trained operator authorizes every engagement.

Detect and track

Sensors build one air picture.

Two-sensor confirmation

Release needs two independent sensors.

Operator authorizes

A consent token for each effector, granted by the operator.

Audit trail

Every authorization, denial and override is logged, tamper-evident.

People first

The defense of human life is the origin of every requirement. Our systems are defensive by design, built to neutralize threats and never to create them.

No autonomous lethal decisions

Engagement modes are hold-fire, weapons-tight and weapons-free; automatic engagement is not enabled. Loss of a link forces a safe state.

AI-augmented engineering, human decisions

Modern tools shorten our design cycles. The engineer stays accountable, and the operator stays in command.

Program status

We say what is proven, what is simulated and what is still to be tested.

Status

The Rev H design baseline was frozen in October 2026. All performance evidence to date comes from analysis and simulation; flight testing and qualification have not yet been performed.

Model output

High-fidelity simulation indicates a single-shot kill probability of roughly 0.9 at short range, rising to roughly 0.98 for a cooperative two-round engagement. These are model outputs, not yet validated by flight test.

Design baseline

Rev H frozen under configuration control

Done

Analysis and simulation

Guidance, structural and lethality models

Done

Software and bench test

C2 and fire-control verification suites passing

In progress

Development demonstrator

A non-explosive electric development demonstrator used for early flight-software work

In progress

Environmental and EMC qualification

Designed with reference to MIL-STD-810H, MIL-STD-461G, MIL-STD-464D and IEC 60529 objectives; qualification not yet performed

Planned

Flight test and production qualification

Interceptor and seeker validation

Planned

The roadmap is indicative and subject to the test program. No committed delivery or fielding dates are stated.

Partnership

We build close to our customers.

Thalon holds design authority for Sentinel. That lets us assemble, integrate and support the system where our customers need it, with their industry.

In-country assembly

A modular architecture allows final assembly, integration and test in the customer's country, supporting industrial-participation targets.

Technology transfer

Design authority, source data and IP held by Thalon enable structured technology transfer and local maintenance at every level.

Through-life support

Training academy, spares, and software and threat-library updates for the whole service life of the system.

Export control. Sentinel products are subject to export control. Exports require authorization from the competent authorities, assessed case by case.

Direct procurement

Supply of Sentinel configurations to government customers, with training, sustainment and spares.

Industrial partnership

Co-production with local industry, progressive localization and technology transfer.

Joint programs

Joint requirements definition, integration with customer command systems and site-specific configurations.

Thalon Company

Our mission is to protect civilian populations and critical infrastructure from unmanned aerial threats at a fraction of the cost of legacy missile-defense interceptors.

01

Proportionate

A response sized to the threat

Defeating mass drones with effectors that cost a fraction of a legacy interceptor round.

02

Evidenced

Every claim carries its evidence

We say what is analysis, what is simulation and what is still to be tested.

03

Engineered

Built to a measured standard

Disciplined design, line-replaceable modules and human authorization on every engagement.

Our promise. When the threat is airborne, Thalon answers with a response that is affordable, accountable and precise, and an operator authorizes every launch.

Contact

Request a briefing.

Whether you are evaluating counter-UAS options for installations, infrastructure, borders or forces on the move, our team can walk you through Sentinel and how it would fit your sites and command systems.

  • Technical briefing for your operational and technical teams
  • Requirements workshop on sites, threats and integration
  • Demonstration planning, subject to the test program

All inquiries are handled in confidence. Sentinel products are subject to export control; exports require authorization from the competent authorities, assessed case by case.

Request received

Thank you. Our team will contact you to arrange your briefing.