HOW ABARs WORK

ABARs in action

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Keep traffic moving with precise braking action data

The ABARnet™ Runway Uptime Platform turns approved aircraft sensor data into real-time braking intelligence, validated by physics, the FAA, and Transport Canada.

This gives airports and airlines trustworthy feedback on actual tire-to-runway friction — whenever it changes and in any weather conditions.

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PROCESS

Braking action reports, grounded in science

01: Capture data

From touchdown to taxi, approved onboard sensors begin transmitting braking and performance data — directly and automatically — to ABARnet™ for immediate analysis.

02: Calculate friction

AST's performance models determine the wheel braking coefficient (actual friction) using validated deceleration physics, aircraft characteristics, and environment factors — all aligned to FAA-preferred and ASTM International-compliant standards.

03: Distribute reports

ABARnet delivers a real-time, science-based ABAR via the cloud to pilots, towers, ops centers, and airline systems — using standard, familiar terminology.

The physics of runway uptime

Our ABARs analyze real landing performance, not estimates, using approved onboard sensor data and a validated braking-physics model.

So you'll know how a runway is actually performing, with every single landing.

Our ABARs analyze real landing performance, not estimates, using approved onboard sensor data and a validated braking-physics model.

So you'll know how a runway is actually performing, with every single landing.

What we measure

Aerodynamic drag

Thrust reverser effect

Wheel braking force (tire-to-runway friction)

Spoilers + lift dumpers (weight transfer from main gear to main and nose wheel)

Rolling resistance

Runway slope + environmental effects

All calculated dynamically during rollout.

Data sources

Brake and thrust system telemetry

Flight control surfaces

Mechanical performance data

Speed, deceleration, and aircraft configuration

Weather and runway surface inputs

Objective data, not perception or guesswork.

The final touch

ABARnet™ isolates the wheel brake coefficient — the true braking force at the tire-surface interface — and converts it into standard runway-condition terminology operators already use. All output can easily conform to existing reporting formats, such as RCAMs, FICONs, NOTAMs, etc.

The network also tracks component wear (tires, brakes, reversers), so stopping performance stays predictable over time.

When surface conditions shift, ABARs show when, where, and how much — so airports can act before runway uptime or safety is compromised.

The network also tracks component wear (tires, brakes, reversers), so stopping performance stays predictable over time.

When surface conditions shift, ABARs show when, where, and how much — so airports can act before runway uptime or safety is compromised.

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AST's reporting network is self-learning, getting smarter with every new report.

25M+*

recorded landings, self-learning

7K+

more landings recorded each day

FAA

preferred tech

ANY

modern aircraft type supported

Real-time data, however you need it

Browser UI or API

Use AST through our browser-based interface for visual data insights, or integrate AST data into your existing systems via our free APIs — no extra dashboards needed.

Any format

Receive reports in any format — FICONs, RCAMs, NOTAMs, and more — to align with your existing standard operating procedures.

Upcoming features

New services are on the way, including Electronic Flight Bag (EFB) integration, friction forecasting, aircraft component wear monitoring, and contaminant level forecasting.

“At AST, we're focusing on both scientific rigor and ease of access. We have worked hard to ensure our ABARs are instantly available in whatever terminology our customers want and need.”

Joe Vickers

CEO, Aviation Safety Technologies

“At AST, we're focusing on both scientific rigor and ease of access. We have worked hard to ensure our ABARs are instantly available in whatever terminology our customers want and need.”

Joe Vickers

CEO, Aviation Safety Technologies

“At AST, we're focusing on both scientific rigor and ease of access. We have worked hard to ensure our ABARs are instantly available in whatever terminology our customers want and need.”