Vehicle-mount runway friction tester RFT

The Dynatest Runway Friction Tester (RFT) is an accurate and repeatable system that can measure the friction coefficients (μ) on airport runways. The RTF moves at a constant speed along the runway, while a specialized wheel measures the friction between the runway surface and the wheel. The collected data is then used to calculate the friction coefficient. The purpose of the RFT is to perform functional (maintenance) and operational testing to assess surface friction, including any changes due to weather conditions, contaminants, and rubber contamination. Operational friction testing can be carried out during adverse weather conditions such as heavy rain, ice, slush, or snow. The Runway Friction Tester is a fully instrumented pickup truck available in either two-wheel or four-wheel drive. It uses a Dynatest Two-Axis Force Transducer mounted on a retractable fifth wheel assembly. The test assembly provides real-time vertical load and horizontal tractive force measurements. The Dynatest RFT meets all the FAA and ICAO specifications for friction measuring devices and is listed in both the FAA AC 150/5320-12 approved device list and the ICAO Airport Services Manual. System electronics include a laptop computer and inkjet printer with user-friendly Windows® software, which allows the operator to control the test procedure including test speed, self-wetting or dry testing, test method (FAA or ICAO), test type (manual or automatic), and annotate airfield test conditions for later reference.