I thought I'd dig this thread back up because I now have a new question...
I know that the entire KC-135 re-engine program went along as this:
KC-135A > E > R
KC-135A > R
KC-135Q > T
But did any KC-135T models get converted back to Rs? In fact, is this even possible? I'm wondering because I noticed the other day that 58-0077's nose is labeled "KC-135R". But digging through some searches, it's shown as a Q model and then later a T model. There is even a pic of it in the A.net database of its nose labeled as "KC-135T" from June 2010.
This is a photo of mine from May 2017 of 0077:
So does anyone know if this particular aircraft at some point had an overhaul and got swapped to KC-135R standard? Are there any other 135s flying around that formerly were T models but were also covered to Rs?