laatsch55 said:
Was the military the same way??
Just as much, yep. We had a shop devoted to calibration, matter of fact. Everything from gauges to "standards" (serious SERIOUS meters with the "meatball" label on 'em). Our benches themselves had to be "cal'd" on a regular basis. The main D/A for example - when we cal'd it to put out 2 volts, that meant 2.00000000 volts, right on the nat's ass.
Every 2 years or so (well, til the end when it was no longer "required") we'd bring in the Lockheed rep to do full bench verification. All 160 main i/o paths and 320 aux paths were "verified" to the n'th degree. Including programmable load resistors, which the rep used to bring with him in big bins (we would end up replacing quite a few).
Hehe.. and that was in a shop that didn't support the aircraft DIRECTLY.. we supported the circuit cards that came out of the boxes in the aircraft. Our "sister" shop did the boxes, and their bench was even older than ours and 6 times as big (wonder why they called it VAST heheh)