GG1 4877 posted:It depends on the locomotive. Some flywheels are better than others. I find that my HO and N flywheels generally had better performance on coasting than the ones in my O scale locomotives. Vertical drive locomotives without flywheels don't coast at all. How do I know? Experience with some older Williams and Weaver locomotives coming to a dead stop when the power was cut and sending cars flying all over the place!
i'm sure i've read somewhere that this has a lot to do with the pitch of the worm gear. whenever you need to turn the axis of rotation, there is usually a worm gear involved.
