35-110NRMSF Class 41 (British Rail Class 252) Prototype HSDT Power Car Diesel Locomotive No.41001 - DCC SoundExclusive to Rails of Sheffield and Locomotion Models. The Bachmann Branchline Class 41 Diesel Locomotive depicts No. 41001, one of just two Prototype HSDT Power Cars which made up the Prototype High Speed Diesel Train (HSDT) and a locomotive that now forms part of the National Collection. Selected as the flagship model for their new Railway Icons range, this museum standard model has been commissioned by Locomotion Models, the official model shop of