Electric locomotive Re 6/6 of the Swiss Federal Railways (SBB) in green livery of the Epoch IV. Refined model with new wheels, pantographs, etched parts and LED lights to match the new models of the Re 4/4 II in the long version. The six-axle driven electric locomotives Re 6/6 of the Swiss Federal Railways (SBB) were procured to replace the Ae 6/6 that was operating for the most part in heavy duty traffic on the lines of the Gotthard. As an alternative to the double traction power of two Re 4/4 – these machines pulled also heavy passenger trains over the Gotthards mountain. They are also used national wide in the freight traffic.