The B&E locos were well photographed on glass negs by Loco and General and they were certainly impressive, particularly if there was someone standing alongside. The driving wheels were not only flangeless but also had very wide treads and my guess is this. The bogies had central pivots with no side play, so in effect the loco was like a bogie coach. On curves, the driving wheels followed a position as would the middle of a bogie coach, but because of the wide tread remained on the rails. They did 80 down the banks, would have loved to have seen that (with my hands over my eyes, just looking through a slit between the fingers

). But they would ride as well as a bogie coach, probably better than the 6 wheel or 8 wheel passenger coaches with radial axles.