This is an N-Scale model of a new IDEA for real Railroads where electrical locomotive depot with positioning system exists! The substance of this idea - divertion bridge catenary from catenary near turntable ADVANTAGES: No any catenary spider over the turntable! No any loco throw off out of the bridge by turning! No need of pantograph lowering !
Also, Viessmann trackplan adoptation and functionality are also showed:
http://www.youtube.com/watch?v=lRwGWT3N4vI
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Vadim