Would a ATHEARN SD40 work on 18 radius curved ? Thanks
Sure, but it will look stupid and throw off the first car coupled to it.
David B
David has provided a well said if not blunt answer to the question.
The Athearn SD-40 will negotiate 18" radius curves, however coupling something to it that will stay on the tracks is another matter altogether. When a manufacturer says the car/engine will negotiate 18" curves that means the car/engine alone. For looks and performance I would consider using a larger radius curve with the SD40 or a smaller 4 axle diesel with the 18" radius curves.
Good Luck
John R
I’m not so sure about the “throw off the first car coupled” thing. An old BB SD40-2 has served as the power under the Christmas tree for me for several years on 18" curves without any trouble.
It would of course look great on an 18"R curve if it were N-scale