I think the diagrams are, essentially, two units taking it in turns to run up and down the line. If memory serves correctly, there are only three usable units, and one of them may need some work to get it into a fit state. Someone will be along shortly to amplify/correct as necessary.
We are a long way from seven-car summer extras!
A summary agreeing with that was posted last week in the main Island Line discussion:I could be wrong but I believe there are 4 operational units - 483004, 483006, 483007 and 483008.
004 is in the worst external condition with large parts of rust showing on the roof, but been advised it is the most reliable.
006 & 008 pretty decent although the roofs are a bit more grey than white.
007 was being refurbished last year and still awaiting confirmation if it has returned back to service yet.
002 and 009 stored out of service.
https://www.railforums.co.uk/thread...te-and-the-future.154219/page-50#post-3977335
A summary was posted last week in the main Island Line discussion:
Thanks for all the info everyone
I d/l the pdf timetable off of the South Western Railway site and used Real Time Trains to add the headcodes to the Saturday Timetable (they are all pretty straight forward). So unless there is a swap out or I'm missing something there appears to be only two diagrams on a Saturday.