Vol,
No the TriStar tankers were never fitted with the pods although the space was created during conversion to fit the control panels at the F/E's station. Might have a photo if anyone wants to see.
CS
I believe the statement that the long bodied (-1,-50,-100,-150,-200s) were all built with the analogue AFCS would be correct. The -250 I think only had 524 engines and uprated wing stucture to give higher zero fuel weight and more fuel capacity. Whether any operator reverted to the digital I don't know but I suspect the only one might have been Delta in the States.
Denzil,
Ah that would explain it...I heard rumours that they were reverting the PanAms to analogue.
Did you all know that Lockheed were considering a fuel tank behind/ above the S duct to enable CG control in flight? It was also one of the first a/c to be fitted with an experimental glass cockpit.
Way way ahead of it's time!