One thing that interested me was signage for flight connections
I've got a small update about this if you're interested in the topic.
It seems that in 1997, flight connections were a thing in Stansted. It worked something like this:
- Transit on international to international flights was offered, via a corridor at the right side of the transit system as you disembarked, before passport control. You'd get off the train, turn right and you'd be straight into the departures lounge. From the information I have, it seems that there was no requirement to be checked there, it was enough to simply walk straight into the departures lounge.
- Transit on international to UK services wasn't offered, you had to clear immigration and customs, collect your baggage and check in again landside before heading into the departures lounge.
- Transit on UK to international services was possibly offered, depending on the airline. It seems that if your baggage was checked through, then you could get from UK baggage reclaim to passport control (at the time, the UK still had exit checks). It's not quite clear to me if the passport control was at the entry to the departures lounge, or if there was passport control before entering the transit train, or on arrival into Sat 1.
I can't be 100% sure, but from what I can tell, the connections corridor was replaced with the corridor to Sat 3. It appears to me that the connections corridor must have disappeared at the same time as Sat 3 was opened, due to Ryanair not wanting to pay for using it.