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Re: 42220

Roderick Smith <rodsmith@werple.net.au> wrote in message
01bf04a1$9f1284e0$232d11cb@rodsmith">news:01bf04a1$9f1284e0$232d11cb@rodsmith...
> AFAIK all 81s and all NRs.
> Probably all Gs, BLs and 82s too.
> Possibly more (stuff for Westrail?).
>
> 81s had troubles in the long tunnel on the Ulan line, as the system relied
> on a reading of true speed from looking at the ballast: no light, and no
> ballast.
>
I thought it was some type of radar, not optical based. Otherwise it
wouldn't work at night either would it?
--
Regards,
Chris Stratton
Wollongong, NSW, Australia
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