GEC's Layout Progress

[Green_Elite_Cab]

Is the track where the problem occurs straight or curved? All locomotives need some sort of flexible pick up connection between the wheels and the decoder/motor to allow it to go around curves. I suspect that you may be losing contact somewhere in the electrical circuit as it goes around a curve.

More often on straight than curved, but the curved section that tends to loose power is actually on a Peco switch (go figure, ) right about when the locomotive is straddling the frog and the points.

I've provided a map with red lines marking the trouble areas for loosing power. Its a little old (not entirely reflecting the recent yard change, but everything on the mainline except the outermost curves are flex track. Its also important to note that though whole sections (between the crossover on the "top" of the layout) are red, trains die in these zones randomly, and the locomotive cen be anywhere in them when this happens.