"Prototype" Re 6/6 # 11603 "Wädenswil", built in 1972 by SLM, BBC and SAAS with 7850 kW and 140 km/h velocity, is pulling the HOLCIM oil shale tank car train from Dotternhausen/Germany to the Zizers ciment work, over the 50 meter high Rhine viaduct between Hüntwangen-Wil and Eglisau.