Re: Puffing Billy, Zig Zag and the Mt Lyell Abt

["Chris Stratton" <stratton.chris.cp@NOSPAMbhp.com>]

"David Bromage" <dbromage@fang.omni.com.au> wrote in message
htZT5.12$8V2.2843@news0.optus.net.au">news:htZT5.12$8V2.2843@news0.optus.net.au...
>
> Doesn't the Abt system provide traction only from the rack? IIRC, the
> wheels are free running. At least that's the case on the Snowdon Mountain
> Railway. If the railway in Tasmania hasn't put in the rack, the Abt locos
> wouldn't be much use.
>
The Mt Lyell locos have 4 cylinders. The outside two drive the wheels as on
a standard loco and the inside two drive the rack engine. The two sets of
cylinders are completely independent, each having their own valve gear and
regulator.
--
Regards,
Chris Stratton
Wollongong, NSW, Australia
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