4P-020-002 GWR Toplight Mainline City Lined Crimson Third Brake 3748 Set 1 Brand_Athearn ADVANTAGES OF THE Z21 XL

ADVANTAGES OF THE Z21 XL CONTROL SYSTEM

PURPOSE Heavy mineral trains

Featuring clear easy to follow colour instructions

these wagons carry mainly waste ballast

2nd and 3rd Radius Curved Right Hand Turnout

4P-020-002 GWR Toplight Mainline City Lined Crimson Third Brake 3748 Set 1 Brand_Athearn ADVANTAGES OF THE Z21 XLThe first order for these coaches was placed in 1915 but, due to the First World War, they were not built until 1920. The second batch was completed in 1921. Six sets of coaches were produced with each set comprising six coaches. The coaches were close coupled and constructed with a steel body rather than the traditional wooden panelling. Due to the restrictive loading gauge of the London Underground tunnels, the carriages are 7 inches lower than