On this engine the couplers are mounted on the trucks. Since these are eight wheel trucks and a long engine, should the couplers stay on the trucks or on body? Also what is the smallest radius curves it can negate
The Athearn DD40 can easily run on an 18" radius curve. Unless you’re going to have wider curves (around 24" minimum), I’d keep the couplers truck mounted to avoid derailments.
Being a lokie, derailments are not an issue, I have the same such engine, 2 motor. really nice, since I model the 50s’ its outa my time BUT, I aint selling it like I sold my HOn3 DL535’s like I shouldnt have…duh…