The 117's were replaced early 90's surely?
I remember the Henley regatta one time in '93, when I first started work, it was a 117 and the doors wouldn't shut because there were so many people on board.
They did trial a new DMU▸ type in the early 80's but nothing came of it.
Yep you are right having used the line for 63 years timescales get a bit distorted. Remember the 201 units
DEMUs▸ pretty good. No underfloor engines!
As Southern Stag says it will be interesting to see what units we do get.