Re: Super Series 42220

[mauried@commslab.gov.au (Maurie Daly)]

>3400 tonnes for a full load.

>>Maybe this issue never arises?
>>
>It does.

>>Another interesting aside is the loads for 82s seem to be the same as for 81s 
>>even though the 82s are fitted with the much larger D87EBTR series motors , 
>>same as the 90s and the Westrail Qs
>>Continuous tractive effort is quoted at 413 kn which is higher than an NR (388 
>>kn).
>>When NR were using the 82s was this in any way obvious?

>As a general rule 82s pull more but NRs go faster with any given load.
>For example a full load up Stawell bank with a BL/G/C would have us
>down to around 20 km/h. An NR happily goes over the top at around 35
>km/h. 


>Cheers

>Krel

>Waxy Wary Zany Zebu


Thanks for this Kev , all makes sense.
Its understandable that a NR will go faster than 81/BL/G etc for the same load 
You would want to get something for the extra 1000 HP.
Curious though why Freightcorp opted to use 81s for the Leigh Creek line when 
82s would have allowed heavier trains for the same no of locos,maybe something 
to do with the power by the hour contract.

cheers
MD