SOFsimr

New to the site... Working for Lockheed Martin and I have a basic question on the torque indication for the -15 engines.... We accomplished a flight test recently and we had recorded the electrical signal off of the torque assembly and converted it to a Torque indication based on an equation supplied by Marietta.. What we found was the instrument always read about 10% on the top end less than our recorded value.. My question is has anyone done a digital vs mechanical inspection to see how accurate the mechanical gauge is as a digital one.. Also how accurate is the calibration to these instruments (how close are they to what we think is the right number).. I've seen the calibration instructions and they seem like they could easily be off by a couple hundred inch/lbs.... Thanks for any information....