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Originally Posted by mattdave
I don’t know about jet liners the biggest plane I ever worked on was a Lear jet got to fly it for a minute too what a blast. But in a general aviation shop be it light planes or helicopters you would be reprimanded or even fired for using a click type torque wrench.
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Well, I know a bit about overhaul and maintenance of jet engines and every single overhaul shop of large turbofan engines uses the click type torque wrench. They are calibrated on a yearly basis and the accuracy of these wrenches is about 1 ft.-lb. or so. The accuracy of the traditional bar wrench may be better than the click type, however, the traditional wrench is fraught with the risk of operator error. It is virtually impossible to for the average mechanic to operate the traditional wrench to an accuracy of 1 ft.-lb.