Highly detailed boom of the modern catenary system with short boom, as found on the Engadin line of the RhB, among others. For the exemplary setup, masts with short (Nm-Y00013) and long (Nm-Y00014) booms are used alternately and the contact wire is laid in a zigzag pattern. In addition, these masts are on the outside of the curve and pull the contact wire to the mast. Kit - without insulators.