![]() ![]() If you didn’t catch on yet to why my mind was blown while witnessing this process, let me explain. He did this dozens of times for various tensions and cable sizes until he could properly fill out the new calibration chart for my tensiometer. He mounted the tensiometer on a loose cable on the calibration machine, then he tightened the cable until the calibrated machine read the proper tension. When the Essco technician calibrated my tensiometer, he did something completely different. ![]() All of this is done while the cable is installed in the aircraft and under tension. The process is simple: Clamp the tensiometer on the cable, take a reading, compare it to the calibration chart with the tool (referencing cable size), and you get the resulting tension. In the field, mechanics routinely use cable tensiometers to check tensions on aircraft control cables.
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