"Flying Rhaetian" (Fliegender Rhätier) express train with railcar ABe 4/4 # 501, first class car A # 1251 and second class car B # 2302, all built in 1939, is crossing the 60 meter long Albula I viaduct between Muot and Preda, and will then run through the 662 meter long Rugnux spiral tunnel. This was a privately organised RM photo charter.