Newbie here and I have a somewhat silly question. How much rolling stock can you safely put behind this engine.
Thank you in advance.
There's nothing dangerous about a locomotive trying to pull more cars than it can. It will spin its wheels if it's too light, or stall if it's very heavy.
Thank you for the answer
It's been many years since I was in N scale. I had a couple of Bachmann F7s, and as I recall they were respectable pullers. When we set up our Ntrak modules at train shows, one F7 would pull about 15-20 cars of level track. It did a bit less on my home layout with 3% grades, but still held its own among the various Atlas, LifeLike and KAto units I had.