ChristiaanJ
I don't think there was a single microprocessor on board Concorde until the days that they had to fit TCAS (in the '90s, IIRC).
For once my friend you're not quite correct. The Plessey PVS1580 Aircraft Integrated Data System, fitted to all BA aircraft from mid' 1977 used a microprocessor in the data entry panel. In the mid-80's, a fault interrrogation module was fitted to the Engine Control Units; this used a 4 bit Intel 4004. Otherwise (as usual
) we agree.
I've some production series CG diagrams, that I will post here when I can find out how to do it......