wheel slippage

[NW Mailing List]

Photo of loco attached in happier days.  It's back in service AFAIK.

Dave Stepheson


----- Original Message ----
From: NW Mailing List <nw-mailing-list at nwhs.org>
To: NW Mailing List <nw-mailing-list at nwhs.org>
Sent: Monday, December 10, 2007 4:08:17 PM
Subject: Re: wheel slippage

In addition to the rail burn problem mentioned by Harry Bundy, there has been at least one instance of uncontrolled slipping resulting in motion damage.  A few years ago in the UK, on a steam-hauled excursion, a poorly trained engine driver allowed his 4-6-2 to slip so badly that one or more rods bent or were broken.  This not only destroyed the motion, but it also seriously damaged the cylinder casting.  I believe that the loco is serviceable again, but I think that they had to have the cylinder assembly recast.  (Can you imagine trying to find someone to cast a cylinder saddle in the US today?)


On a modern US loco with cylinders integral with the engine bed, this would be a disaster!


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