REVUpminster
Established Member
If the two units complete this diagram today they will have done 500miles1000 fault-free miles is the equivalent of 6.25 return trips between Plymouth and Penzance, or around 9.6 return trips between Plymouth and Exeter. Doesn't sound like a lot, but obviously considering that several units have to meet this, and the clock is reset whenever there is a fault, this could be lengthy process if not many ECS runs per day are taking place.