Firenetting: a new airborne defense layer against wildfire embers.

Airborne ember interception for wildfire defense.

Firenetting proposes a patented airborne ember-interception system using UAV-controlled fire-resistant mesh netting to capture or slow windborne wildfire embers before they land and ignite new fuel. This white paper defines the wildfire ember problem, summarizes the FRED First Responder Ember Drone concept, identifies early deployment scenarios, and proposes a staged engineering, prototype, testing, and field-demonstration pathway.

The purpose of this paper is not to claim that Firenetting is a finished fire-service product. The purpose is to define a responsible path from issued patent to measurable engineering evidence.

The next step is not invention. The next step is engineering validation.

Firenetting proposes a new airborne defense layer against one of the most dangerous mechanisms of wildfire spread: windborne embers. Embers can travel ahead of the visible flame front, cross firebreaks, jump roadways, land on receptive fuels, and ignite new fires before conventional suppression resources can respond.

Firenetting’s proposed response is direct: intercept embers while they are still airborne. FRED, the First Responder Ember Drone, is a patented UAV-controlled fire-resistant mesh netting system designed to position airborne netting between ember sources and vulnerable targets.

The invention is protected by U.S. Patent No. 12,539,435 B2, titled “Unmanned Aerial Vehicle (UAV) Controlled Netting System and Method Thereof.” The patent establishes the protected concept. The purpose of this white paper is to describe the responsible next step: build, test, measure, and determine where the technology can be safely and effectively deployed.

Windborne embers defeat ordinary boundaries.

Wildfire defense often focuses on the visible fire line. That is necessary, but incomplete. In wind-driven fires, the visible flames are not the only threat. Embers lifted by wind can move ahead of the main fire, land on dry vegetation or vulnerable structures, and create new ignition points.

Roads, firebreaks, defensible space, and structure hardening all matter. But each of them is challenged by embers. A road can slow flames but still be crossed by burning material in the air. A cleared space can reduce local fuel but not prevent embers from landing on roofs, decks, vents, palm crowns, fences, gutters, or ornamental vegetation. A hardened structure still faces risk if ember exposure is heavy enough or if weak points exist.

The central opportunity is timing. After an ember lands, the problem becomes ignition control. Before an ember lands, the problem is interception. Firenetting focuses on the airborne moment, where a physical barrier may be able to slow, capture, or suppress embers before they create the next fire.

FRED: First Responder Ember Drone.

FRED is the proposed operational name for the patented Firenetting system. The core concept is a UAV-controlled fire-resistant netting system that can be deployed into the air to intercept embers. The system may use one or more UAVs, mesh netting, tethers, sensors, power systems, ground support, and optional water or fire-retardant delivery.

The basic operating idea is simple enough to explain in one sentence: place fire-resistant mesh netting in the path of windborne embers and use UAVs to position, support, and control that netting.

Core system elements

• Fire-resistant mesh netting: netting intended to capture or slow embers while allowing wind to pass through.
• Battery-powered UAVs: drones that can hold, position, maneuver, or guide the netting.
• Deployment geometry: single-UAV, multi-UAV, tethered, fire-truck-supported, and road/firebreak configurations.
• Sensing and control: wind, heat, ember-source, positioning, or imaging inputs to support net placement.
• Suppression support: optional water or fire-retardant spray directed at embers captured in the mesh.
• Ground support: anchors, fire trucks, power lines, hose lines, command systems, and safety standoff zones.

U.S. Patent No. 12,539,435 B2.

The Firenetting concept is protected by U.S. Patent No. 12,539,435 B2, issued February 3, 2026, for “Unmanned Aerial Vehicle (UAV) Controlled Netting System and Method Thereof.” The inventor is Bradley Lawrence Bartz.

The patent describes a UAV-controlled netting system including fire-resistant mesh netting and a battery-powered UAV configured to maintain the netting aloft and position the mesh to capture embers based on wind conditions and ember sources. The patent also describes optional water or fire-retardant chemical delivery and multiple operating configurations.

Firenetting is a new layer, not a replacement.

Firefighters, aircraft crews, emergency managers, and utility responders already operate under extreme conditions. Firenetting is not proposed as a replacement for existing wildfire suppression. It is proposed as a possible additional layer that addresses a gap: airborne ember movement before ignition.

Existing tools remain essential

• Ground crews protect people, structures, and fire lines.
• Aircraft deliver water or retardant where conditions permit.
• Defensible space and structure hardening reduce vulnerability.
• Utilities, public works agencies, and emergency managers protect infrastructure and access.

The remaining gap

None of those measures fully solves the problem of embers traveling through the air ahead of the fire. Firenetting is aimed at this gap. The goal is not to make broad claims before testing. The goal is to create a disciplined engineering program that can determine whether airborne ember interception can reduce risk in specific scenarios.

Start where the use case is measurable.

A successful first prototype does not need to solve every wildfire problem. It should focus on a measurable scenario where the technology can be tested safely and where results can be documented clearly.

Scenario 1: Roadway and firebreak protection

Roads and firebreaks already serve as natural boundaries. Firenetting may add an airborne layer to help prevent embers from jumping the corridor. This use case has strong testing value because the geometry is understandable: fire on one side, protected corridor on the other, net barrier in between.

Scenario 2: Property perimeter defense

Hillside homes, ranches, resorts, critical facilities, and isolated structures may be threatened by ember exposure before the main fire reaches the property. Firenetting could be studied as a temporary airborne barrier between ember sources and vulnerable structure zones.

Scenario 3: Palm-tree and vertical fuel hazards

Palm trees and similar vertical fuels can release dangerous burning material. A targeted net system may be studied around or near known ember-source hazards.

Scenario 4: Utility and infrastructure corridors

Substations, access roads, utility corridors, and emergency routes may benefit from an airborne ember-interception layer if testing proves useful performance.

Scenario 5: Fire-truck-supported tethered operations

A fire truck or ground vehicle may provide anchoring, power, water, fire-retardant supply, command support, and retrieval capability. This may reduce battery limitations and improve operational control during stationary deployments.

Build, test, measure, then scale.

The responsible development path should move in phases. The program should begin with modeling and controlled small-scale tests, then progress to controlled fire-lab testing, then to agency-observed field demonstrations.

1. Engineering study: define mesh material candidates, porosity ranges, wind-load models, ember-size assumptions, UAV lift requirements, tethered power configurations, suppression delivery options, and safety protocols.
2. Small-scale prototype: fabricate a manageable mesh panel and test it in controlled fan conditions using safe ember analogs or controlled particle tests. Measure capture behavior, airflow, stability, tether loads, and handling requirements.
3. Controlled fire-lab testing: expose selected mesh materials and configurations to controlled ember and heat conditions. Evaluate fire resistance, ember capture, cooling, spray behavior, and post-capture ember risk.
4. Agency-observed field demonstration: conduct a realistic but controlled test with public-safety observers, technical instrumentation, a defined test objective, and written safety procedures.

Required test outputs

• Mesh porosity recommendation.
• Measured wind-load data.
• Capture-rate observations.
• Drone lift and stability requirements.
• Tethered versus battery-only operating assessment.
• Spray suppression test results.
• Safety procedure draft.
• Recommendation for next-stage prototype scale.

The first obligation is safe testing.

Firenetting is a patented concept seeking engineering validation. It should not be treated as a deployed fire-service product until prototype performance, operating limits, and safety requirements have been measured in controlled environments.

• FAA and emergency airspace coordination would be required before any real-world deployment.
• UAV operations near smoke, heat, wind, terrain, power lines, aircraft, vehicles, and crews require strict safety protocols.
• Net wind loading must be measured before useful operating limits can be claimed.
• Captured embers must be cooled, contained, or safely released after interception.
• Fire-resistant net materials must be tested for heat exposure, ember retention, structural strength, and degradation.
• Tethered power, hose lines, anchors, and command systems must be evaluated for trip hazards, entanglement risk, and emergency retrieval.
• Firenetting should first be tested in controlled environments before any wildfire deployment is considered.

The grant should answer hard questions.

A strong funding program should not assume the outcome. It should create the evidence needed to determine where the invention is practical, where it is not, and what engineering improvements are required.

A staged budget keeps the risk controlled.

The following ranges are preliminary planning estimates intended to support grant, investor, and partner conversations. Final budgets should be refined after engineering scoping, partner selection, UAV platform review, test-site planning, and safety review.

Use of funds

• Engineering design and safety review.
• Computational modeling and wind-load simulation.
• Fire-resistant mesh material research and fabrication.
• UAV platform evaluation and lift testing.
• Prototype construction and test instrumentation.
• Controlled ember-capture testing and documentation.
• Fire agency, utility, insurance, and research partner engagement.
• Commercialization, licensing, and manufacturing planning.

Move quickly, but measure everything.

A 12-month development path can produce a serious engineering record, a tested prototype, and an agency-observed demonstration plan.

This requires a serious test coalition.

Firenetting should be developed with partners who can help define, test, measure, and safely evaluate the technology. The first partnership should not be based on hype. It should be based on disciplined testing.

Built by a field-energy inventor, not a theory shop.

Bradley Bartz is the inventor of FRED and founder of ABC Solar Incorporated. His background brings decades of practical solar, battery, backup power, field installation, and emergency-resilience experience into the wildfire technology problem.

Firenetting is rooted in practical deployment questions: how power is supplied, how equipment is installed, how systems behave in the field, how emergency responders might use the system, and how a concept moves from drawing to working prototype.

The project is seeking partners who understand that the gap between a patent and a public-safety tool is engineering evidence. The goal is not to overclaim. The goal is to test.

From patent to prototype to licensed deployment.

The most likely commercialization pathway is staged. The first stage is not mass production. The first stage is engineering validation. Once useful test data exists, Firenetting can evaluate licensing, joint development, manufacturing partnerships, government procurement pathways, and specialized deployment services.

Possible commercialization models

• Licensing: license the patented concept to drone, fire-equipment, or defense contractors.
• Joint development: work with a UAV platform partner and fire-resistant material supplier.
• Agency demonstration program: build a prototype system for observed public-safety testing.
• Utility corridor protection: develop specialized systems for infrastructure and access routes.
• Insurance-backed risk reduction: study neighborhood-scale or property-scale ember defense.

The patent exists. The need is urgent. The next step is evidence.

Firenetting does not claim to replace firefighters, aircraft, defensible space, structure hardening, or existing wildfire suppression methods. It proposes a new layer: airborne ember interception.

The invention is protected. The concept is clear. The test questions are knowable. The budget can be staged. The first use cases can be narrowed. The responsible next step is to build, test, measure, and determine where this technology can help protect lives, property, and infrastructure.