Re: NRC & Douglas Park

[Railway Rasputin <bob@fastlink.com.au>]

BINGO

robson wrote:
> 
> Rob Kearey wrote:
 
> I think it is something like this ..... Sticking brakes (or brakes not
> properly released) can prevent an axle from rotating, so that the wheels
> skids along the track, picking up a very fine shim of steel off the head
> of the rail until it builds up into a lump of scale stuck to the tread
> of the wheel. If brakes then free up, the rotating wheel will lift off
> the rail each time it runs over the scale build up. If the scale is
> thick enough it can derail the vehicle.