Lethal EMD Monster cruies at 120 KMPH with 12066 Delhi Sarai Rohilla - Ajmer Jan Shatabdi Express.
Length of LHB coach (over buffers) : 24.7 m
Length of WDP-4B : 21.26 m
Time taken by Loco and 11 Coaches to cross frame: 8.76 sec
Speed = (Loco length + Coach length*number of coaches)/time
=(21.26 + 24.7*11)/8.76 = 33.44 m/s = 33.44*3.6 kmph = 120.38 kmph
