• Our new ticketing site is now live! Using either this or the original site (both powered by TrainSplit) helps support the running of the forum with every ticket purchase! Find out more and ask any questions/give us feedback in this thread!

SO Supplementary Drive and Detection

Status
Not open for further replies.
M

minty625

Member
Joined
10 Jan 2024
Messages
11
Location
Manchester
I was reading a document that discussed SO Supplementary Drive and Detection. I have asked a few people and noone knows what SO stands for. Even had a search online and nothing. Anyone know?
 
Status
Not open for further replies.

Top