Thought I'd alert fans of monstrously huge steam that Classic Trains's photo of the day (June 10) is a picture of this loco on a curve here http://ctr.trains.com/ Impressive!
If you want to see one with much more overhang then above - look on page 187 of Narrow Gauge in the Rockies by Beebe & Clegg. It shows the Uintah 3 foot gauge 2-6-6-2T on one of the lines 66 degree curves. Its a wonder it didn't just fall over, lol.