New "Tango" train from Stadler Rail for the Appenzeller Bahnen, Be 4/6/ABe 4/6 # 4004/4104 is entering the new Ruckhalde tunnel at St.Gallen, on the way from St.Gallen to Teufen. The AB gets 11 of this new trains for the traffic between Trogen, Speicher, St.Gallen, Teufen, Gais, Appenzell.