crs1026
Superstar
It says it does this to avoid speed restrictions how come?
It takes a minimum number of wheels making contact with the rails to activate the signals.
There are rules that require one or two locomotives moving on their own to do so at slower speed, so that there is less risk of the movement not triggering the signals. Adding the two coaches puts enough wheels on the rails to be confident that the signals will work properly, so there is no speed restriction.
- Paul




