steam loco question

nw-mailing-list at nwhs.org nw-mailing-list at nwhs.org
Mon Jun 26 14:35:53 EDT 2006


Actually the inside and outside drivers travel a
different length of rail per revolution. The driver
tires are tapered slightly. With the flange against
the outside rail on a curve, the largest diameter
portion of the wheel contacts the rail. On the inside
rail, a smaller diameter contacts the rail. There is
a difference in the circumference. The outside wheel
travels slightly further per revolution than the
inside. This differential effect helps ease the
potential problem you stated.

Not a terrific explanation but hope it helped.

Dave Stephenson



> A steam locomotive enters a curve with drivers on

> both sides eating up the same amount of rail,--why

> does the drivers on the shorter rail not climb out

> ??

>



__________________________________________________
Do You Yahoo!?
Tired of spam? Yahoo! Mail has the best spam protection around
http://mail.yahoo.com


More information about the NW-Mailing-List mailing list