Methods of Power
Static diorama models or 'push along' scale models are a branch of model railways for unpowered locomotives, examples are Lone Star and Airfix models. Powered model railways are now generally operated by low voltage direct current (DC) electricity supplied via the tracks, but there are exceptions, such as Märklin and Lionel Corporation, which use alternating current (AC). Modern Digital Command Control (DCC) systems use alternating current. Other locomotives, particularly large models can use steam. Steam and clockwork driven engines are still sought by collectors.
Read more about this topic: Rail Transport Modelling
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