This days, the sister EURO9000 locomotive of # 300, the # 301, made test runs on the Gotthard mountain line for the wheel/rail forces. For this purpose, the locomotive is equipped with 2 measuring axles on the uphill bogie (first and third axle) and a large number of cables are attached. This is one of the world's most powerful hybrid electric/diesel sixaxle locomotives built by StadlerRail in Valencia/Spain, owned by European Loc Pool AG, Frauenfeld/Switzerland (ELP). EURO9000 # 301 is leaving the 1090 meter long Leggistein loop tunnel between Göschenen and Wassen, when running down from Göschenen to Erstfeld.