the british rail class 02 were a class of twenty 0-4-0 diesel-hydraulic shunting locomotives. they were built by the yorkshire engine company in 1960 (first ten, d2850-d2859) and 1961 (d2860-d2869). they were built for use in places of restricted loading gauge and curves such as docks. they had the door to the cab at the rear, with a railed veranda behind the cab. this feature was very unusual on british rail locomotives. it was used on many yorkshire engine co. designs and was/is quite normal in north american practice.