In message ,
Colin Rosenstiel writes
The Northern main line had 7 car trains, with M-T-T-M four car units
This is definitely wrong. Each four car set comprised a driving motor,
a non-driving motor, a trailer double compressor and a driving motor
car. Your setup implies only four motor cars per train, but there were
definitely five. I don't know where your info comes from, but I worked
on them and I know I'm right.
--
Clive.