"HST125" of the "Castle Class" of the Great Western Railway is entering Penzance, running the 2C68 from Plymouth to Penzance, with power car 43 # 042 "Tregenna Castle" in front and 43 # 156 "Mean Castle" in the rear. This trains were shortened to 4 intermediate cars with automatic doors and second class only for the services between Plymouth and Penzance and are based in Plymouth Laira depot. The trains, still approved for 125 mph (200 km/h), travel at a maximum of 75 mph here, but mostly in the 65 mph (105 km/h) range. The two diesel power cars of class 43 with MTU engines each have an output of 1678 kW (2250 HP).
