The ICC Dynamic Friction Tester (ICC DFT™, formerly known as NAC DFT) is an aerodynamic tow-behind continuous friction measurement device (CFME), approved for use on airport runways by the FAA. The ICC DFT™ is built in the United States and is used by airport authorities around the world.


Aerodynamic Design

The NAC-DFT™ features an aerodynamic tow-behind design, ensuring accurate and consistent measurements during operation.

FAA Approval

Approved by the Federal Aviation Administration (FAA), the NAC-DFT™ complies with rigorous standards, attesting to its reliability and suitability for use on airport runways.

ASTM E2340 Compliance

The device adheres to the ASTM E2340 standard, a recognized method for measuring the skid resistance of pavements using a continuous reading, fixed-slip technique.

Year-Round Functionality

Designed to operate effectively in both summer and winter conditions, the NAC-DFT™ provides comprehensive friction data, crucial for maintaining safe runway conditions.

Contaminant Identification

The device helps identify and assess various contaminants, including rubber deposits, dust particles, jet fuel, oil spillage, water, snow, ice, and slush, which can impact runway friction.

Continuous and Real-Time Data

The NAC-DFT™ continuously collects reliable friction values and displays the results graphically in real-time, offering immediate insights into runway conditions.

Wireless Data Transmission

The collected data is transmitted wirelessly or via direct serial cable to a tow vehicle laptop or tablet, ensuring efficient and timely data transfer.

Comprehensive Friction Parameters

The device calculates key friction parameters such as Mu or RCR values, and data can be displayed in an easy-to-read bar chart for specific runway sections.

Portable and Self-Contained

With its self-contained design, the NAC-DFT™ is portable and can be easily moved to different locations for friction measurements, contributing to its versatility and ease of use.

Built-to-Last Design

Engineered with state-of-the-art precision, the NAC-DFT™ features a durable and environmentally friendly design that significantly reduces maintenance and operating expenses.

Measurement Capabilities

Skid Resistance

Longitudinal and Lateral Acceleration

Mu (Friction Coefficient) or RCR (Runway Condition Rating) Values

MSD (Mean Slippage Distance)

MPD (Peak Slippage Distance)

RMS (Root Mean Square)

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