This machine was designed for trip working as well as shunting, I wonder how often it reached its maximum speed of 43mph! This view shows the two small hinged cab windows which were devoid of windscreen wipers. Train brakes were not fitted, all braking coming from the locomotive's own air brakes. It had Bulleid/Firth Brown 'Boxpox' 4ft. 6in. wheels and weighed 50 tons.