 The equipment was particularly suitable for battery locomotives, as the lack of starting resistances reduced the amount of power wasted when starting and stopping frequently.At slow speeds, conventional control systems would often overheat, but the metadyne-equipped locomotives could pull trains weighing 100 tons for long distances at speeds as low as without problems.However, the complexity of the equipment, and the difficulty of maintaining the metadyne machine, resulted in the locomotives not being used sufficiently, and they were withdrawn for scrapping in 1977.