On Apollo they had file cabinets full of drawers for IBM punch cards, except each had a microfilm insert.
They could trace a single #6-32 screw back to the mine the iron ore came from. -John ============= > Hal Murray wrote: >>> Line got moved to other side of big ocean. Process got " tweaked" beta >>> is >>> now 4x what it was. >> >> I'm pretty sure that military grade parts have paperwork and processes >> to >> cover that case. I expect it costs a lot. >> >> I think the same sort of service is available to high volume customers >> at a >> less than military price. > > just so.. > > In the space business, we call it "traceability to sand"... you haven't > lived til someone has a failed 2n2222, somwhere on some piece of > critical hardware, and they issue a GIDEP alert, and then the mission > assurance folks call you up and ask, "you don't by any chance have > 2N2222's in your flight hardware do you?".. then there's the whole > manufacturer and date code hunt.. Looking through the build > documentation to find out. (or worse yet, if you had decided for some > reason to use the prototype, which you didn't keep such good records on, > but which you have photos of, and trying to read the date codes off the > assembled item with a magnifying glass) > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
