(20 Sep 2013, 8:41 am)JakeSavage wrote Initially, the x2 was timed at 55 minutes. But the level of traffic congestion it encountered pushed it over the 60 minute (4 buses) mark, so buses inter worked at eldon square with x1/x3.
Pretty certain it didn't interwork with the x3 - only because the x3 was worked by whatever stock was left lying about and wasn't operated with Citaros or coaches at that time.
The x1 and x2 were the only Red Arrows branded service for a long time.