Re: Loco cab safety

[Richard <richard_snook@primus.com.au>]

Do NR's run "elephant" style or back to back??
The 2nd unit is probably geting 2nd hand air if running back to back.

cheers >:~)) Richard

Dave Proctor wrote:
> 
> Maurie Daly <mauried@commslab.gov.au> wrote in message
> news:mauried.486.38449890@commslab.gov.au...
> 
> > For what its worth, just recently since the hot weather has started, there
> > seems to be a marked increase in the failure rate of the 2nd unit on NR
> trains
> > between Goulburn & Harden, usually on the 1:40 grades near Bowning or
> Jerrawa.
> > What seemed odd was that it was always usually the no 2 unit , not the
> leading
> > one.
> > Just about all NR trains on this corridor have 2 NRs or more.
> > Is there any obvious reason why its more likely that a 2nd unit will fail
> in > preferance to the lead unit?
> 
> Only thing that I can think of (and I am untrained) is maybe the airflow
> characteristics are causing the units to overheat and fail? Being second
> units, the leading unit *could* be interfering with the the airflow to them.
> Do you know if it does it to a third unit? (Not that there would be many
> triple-NR's running on that corridor).
> 
> --
> DaveProctor
> thadocta AT dingoblue.net.au