Re: G7 up to 160 km/h

[David Johnson <trainman@ozemail.com.au>]

"C. Dewick" wrote:

> "Bill McNiven" <wmcniven@gunzel.ozemail.com.au> writes:
>
> >David Johnson wrote in message <38980B6B.62738163@ozemail.com.au>...
> >>On Tuesday Feb 15, G7 will depart Sydney at 0842 for an XPT speed test to
> >>Newcastle for a 2'27"
> >>run.  On the up it will stop at Hamilton, Broadmeadow, Cardiff, Fassifern,
> >>Morisset, Hornsby and Strathfield for a 2'16" run.
>
> >1    Does "G7" mean the Outer Suburban Tangara set with that number?
>
> It's G-set number 7, and the probably reason it's being used for the speed
> trial is that it's the prototype AC-traction set.

Yes.  They are re-programming the EEPROMs to achieve higher acceleration and a
greater top speed.  G7 is the only set that this can easily be done to.

> >2    Doesn't look like XPT speed ... more like 36/38 class speeds
>
> XPT's are rated to run at a maximum of 160 kp/h, which is equivalent to 100
> mph, which itself just happened to be what the old Newcastle Flyer could
> achieve with a 38 class hauling the train.

The latest word is that the train should not exceed 140 km/h.  This is up to MECH
branch who will issue a ROVA MECH for the move.

> >3    And why is it happening?  Technical curiosity?  G sets to replace V
> >sets?  New train design?
>
> More evaluation of the AC-traction equipment I presume, perhaps due to a
> desire to use it on the new trains when they are built.

Apparently CityRail want to make the trip to Newcastle faster....

--
David Johnson
trainman@ozemail.com.au
http://www.ozemail.com.au/~trainman/
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