Re: Second rate Alice - Darwin line?

["Chris Gormlie" <gorms@mpx.com.au>]

Could be they are going to lay 52Kg

Maurie Daly <mauried@commslab.gov.au> wrote in message
mauried.461.382109CE@commslab.gov.au">news:mauried.461.382109CE@commslab.gov.au...
> In article <D=EgON3Z=4xUyUmEVrJVT2jhfatp@4ax.com> "< Tell >"
<telljb@OZozemail.com.au> writes:
> >From: "< Tell >" <telljb@OZozemail.com.au>
> >Subject: Re: Second rate Alice - Darwin line?
> >Date: Thu, 04 Nov 1999 12:06:03 +0930
>
> >dbromage@fang.omni.com.au (David Bromage) wrote:
> >>
> >> The Australian (29/10, p1) reports that 155,000 t of rail will be
needed
> >> to build the Alice - Darwin line. This doesn't quite tally. 1410km of
main
> >> line * 2 rails * 60kg/m = 169,200 t. 155,000 t of 60km/h rail only gets
> >> you 1291km of track.
> >>
> >> Add 16km for 10 loops, plus 10 sidings of the same length and you need
> >> 2,884,000 m of rail. This comes out to just under 54kg/m.
>
>
> >The majority of rail on the TAS is 47kg/m. ANR intended
> >to use the same on their proposed Alice to Darwin line.
>
>
>
> Currently , Tarcoola to AP is only 47 kg/m on concrete.
> No point using heavier rail than this on the northern end , unless you
> completely relay Tarcoola to AP.
> Even doing this doesnt make much sense as Adelaide to Tarcoola is also
> only 47 kg/m on concrete.
> 47 kg/m on concrete allows full mainline speed with 23 tonne axle load
locos.
> (At least it does on ex AN rails, (ELs are allowed 135 km/h).
> As its very unlikely that we will see heavier than 23 tonne locos on the
new
> line,whats the point of using 60 kg/m rail.
> Whilst it would be nice ,lets not forget that this project is economically
> extremely marginal.
>
> MD
>
>
>