Between the early to late 70's I was working for a company that had a sub-contract with Hewlett Packard.
We made part of a guidance system for the Navy's missile system(s) - my internal confidentiality security compliance has been over, for a long time.
I made micro cables for the systems (gold plated connectors combined with copper cable(s)) and the cables could have no kinks or wrinkles in them, as it changed the frequencies of the cable.
When we had a new design; I would get drawings from the Engineers, which showed what was supposed to be connected to what.
The cables had to be made in such a way, that one could be replaced without disconnecting any of the others and the spaces were very tight and sometimes the cables threaded through each other.
The Engineers would make these very pretty drawings that showed all the bend radiuses and how they thought everything should be.
After using their plans and discovering that what they wanted wouldn't work, I would go them and explain what needed to be changed.
EVERY single time, they would try to stand firm and use the reasoning that since it worked on paper it should work in reality.
After much "discussion" I would be able to convince the supervisor of their department to allow me to make a prototype and then let the Engineers to draw off of my designs.
Now; the Engineers were very educated; but they just weren't very intelligent.
