--- In LRRSA@yahoogroups.com.au, "Michael J" <thirtyinchfan@...> wrote:
So there is not much difference. The Shimla loco acheves a greater TFI just looked at the driving wheel dia, the Shimla was 30" and the NA
36", so that probably accounts for the differance in TF.
Who would have thought of the NA class as a thoughbred and not a