having some suspicious problems at the track lately motivated me to do some research. it's very elemental, but appears to be very substantial as well.

it seems to me that there has not been much discussion about the importance in wire gauge for the power transmission wires. perhaps it is not that critical. that may, indeed, be your opinion, but i found this page that indicates otherwise.

http://www.currentsolutions.com/knowledge/vdrop.htm

i have seen statements that approve of higher gauge wire on 12th scale cars to save weight or to keep the rear flexible. so far, the tradeoff of voltage seems to be a questionable recommendation.

the page does, however, not account for material of wire being used. i would assume copper?

have at it. please discuss your conclusions and indicate any errors in thinking along the way.