Lode Star is the only remaining GWR 4000 Class locomotive. It is preserved at the National Railway Museum in York, UK. Lode Star was designed by George Jackson Churchward and was built in 1907, one of the first locomotives in its class to be built. The design of the locomotive was influenced by de Glehn, a French engineer. He used four cylinders on his locomotives, which Churchward copied. By using four cylinders it meant the locomotives were both powerful and fast.