Finally got one a Spectrum DDA40X

[rallygsc]

Hello Everyone:

well I finally snagged one for the layout

a spectrum DDA40X # 6900

I know all of the features, but what is a radius one of these beasts need to run on?.

I had the older crappy version with the pancake motor before, I redone it with an athearn chassis and it improved it a lot, but when I tore down my old layout, I sold it off.

what is the pro's and cons on the spectrum one?

please let me know

thank you in adavnce
George

[Nigel]

24" is probably the practical minimum, though 30" min would be better.