Doc is available to design, build, or consult on any maritime modeling project. A loop around the layout is about 220 feet. Longest train by numbers so far was a 235 car train made up of lots of different cars and the longest in distance was 150 autoracks. The cars on the layout all have metal wheels, Kadee or compatible coupler, and are weighted to approx. 1 oz per inch of car length.
Regular maintenance amounts to lubrication monthly of engines and quarterly for rolling stock.
Wheel cleaning of engines about quarterly depending on manufacturer. Only major repairs so far are NWSL wheel set replacement on three Athearns and two power trucks on a Kato. It appears the Katos and Atherans wear out at about the same time. Around one power truck per year each. Not bad for that much running.