I purchased a K-Line MU unit. Unbeknownst to me it will not negotiate O31 curves. The seller has allowed me to send it back for a full refund. Are there any interurbans or MU commuter cars that will run on O31 curves. They must be of the electric type, i.e. with a pantograph.
This is what I bought. it's 18" long. The trucks do not have enough swivel.