Given that it is supposed to be able to hold an O scale loco, it is certainly big enough to hold an N scale steam loco with tender, or for that matter, 3 if not 4 F units at one time. However, they would need to think through the rack/clamp for that. Probably show up in 4 years as a $50 add on.
It leaves me wondering what routine maintenance Bchmann locos need that requires the ability to rotate through 180 degrees.
At close to $100, with the way things are going, I think I will just wait until Kato or Tomix comes out with a working Backshop facility, and let the little N scale crew take care of it.