Watch the all new Hornby APT full length 14 car train run at the slowest possible speed using a H&M Duette DC controller. This APT is running with dual motorized Non-Driving Motor cars during this slow speed performance test. This is the second in a series of APT tests, if there is something you would like to see please put it in the comments below, otherwise, enjoy the new APT going very slowly around the layout! This is R3873 plus the full coaches and extra NDM.