TT3072M Class 31/1 BR Blue '31270' Diesel LocomotiveExpected Delivery 2027 (Subject to Change at Manufacturer's Discretion). The Brush Type 2 Class 31s have arrived in TT: 120 scale. This BR Class 31 31270 model locomotive is DCC ready and depicted in a stylish shade of BR Blue. Model Specification: Highly detailed model based on extensive research and design Die cast chassis Wealth of separately fitted parts, including front end handrails, disc headcodes (where applicable) and roof grille Detailed cab