Re 420 # 268 "Erstfeld" with special paint scheme "Gottardo 2016" is pulling the Red Arrow "Churchill-Pfeil" RAe 4/8 # 1021 from Erstfeld to Brunnen, from where the elegant double arrow will run alone to Zürich. Between Erstfeld and Brunnen, because of the new train protection system "ETCS L2", there was needed a leading vehicle which is equipped with this system.
