There is another one where they had to recall retirees to restart Stinger Missile production.

The F1 is particularly interesting, because if we'd undergone a program in 1985, we probably could have restarted production, maybe even 1995 - but every decade another n% of the engineering knowhow sluffed off into the permanent dirt nap until there wasnt enough left.

Another recent example was when Jay Leno had a new heat exchanger made for his Chrysler Turbine car, and they were able to call some retirees in to help make a new one.