I bought an N20 motor a couple of weeks ago, along with a pair of 3D printed gears to fit 1/8" axles & the N20. My original thought was to fit it to this small LNER tank I picked up at an estate sale;
While the motor would probably fit, it won't fit between the frames. Which means needs to angle into the boiler. Which hasn't enough space.
Playing around with the brass chassis, I think it was made undersized. The chassis will 'walk' on my test plank. I need to see if I can spread the frames some. Hopefully, if I can drop the motor into the frame, this'll all work. I might use the N20 on another project, though.