Re: English Railway Accident

["keith malcolm" <kmalcolm@tpg.com.au>]

chris 'fufas' grace <chris@transdata.co.nz> wrote in message
3A9F45A4.CD7EFD45@transdata.co.nz">news:3A9F45A4.CD7EFD45@transdata.co.nz...
> keith malcolm wrote:
> > My impression was that the comments were made purly in relation to
propelled
> > trains, (DVT, carriages, loco/power car) not push pull trains (loco,
> > carriages, loco), in which case I agree a train like that is unstable,
what
> > happens if the front derails and the rear keeps applying power?
> >
> > Dave Malcolm
> >
>
> I think you have your definitions mixed up. The DVT/Coaches/Loco
> combination is push-pull by definition. A train with power cars at
> each end is a unit train in which some of the cars are being pushed
> and some pulled at any give time whilst it is moving. Power
> differences between the two power cars make sure of that.

No I don't. A DVT is a Driving Van Trailer. Trailer as in un powered. So it
is not push pull, it is propelled but controlled from the front.

Dave Malcolm