Ford B-24s
There were some interesting aspects to the way Ford built them too.
Ford was no stranger to aircraft manufacture of course with their famous Trimotor, but they revolutionised the way the B-24s were built by making use of lessons learned in car manufacture. One of these was extensive use of drilling and tapping jigs.
I may have the figures wrong, but from memory it used to take many hours for Consolidated to drill and tap all the holes in the main spar section which supported the centre of the aircraft including the bomb bay.
Ford designed a jig which did the operation far more accurately and reduced the time from many hours to just two minutes!
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