Ran the tug and barge yesterday up at the Elk Grove Regional park with the Sacramento Model Shipwrights. Worked out well with no navigational troubles. Plenty of rudder authority.
The train scale is 1/24th. I used an inexpensive battery operated New Bright train set. The barge is a large block of Styrofoam with a rubberized coating of Flexseal. Deck is plywood. Length is around 67 inches (170cm)
The railroad tug I built up as you see it now from a model I picked up thru a classified ad but it's origins are unknown.(see pic) Hull is a plastic coated expanded foam material
The railroad tug I built up as you see it now from a model I picked up thru a classified ad but it's origins are unknown.(see pic) Hull is a plastic coated expanded foam material