Stephen,
you are correct. Every loco is like a human, some a bit stronger than others
and some have their weird and wonderful ways. I have seen 81s under load
test go as high as 3300 although the nominal figure of 3000 hp is normal.
The highest an 82 will go to in load test is 3026 hp for a very good one
but most are within the 3000 to 3026 hp band. Another consideration is
the time taken to get to the maximum hp with some weaker units taking longer
than others. The 81 has a larger main gen and they don't make transition.
I can't claim to have worked on DLs but from what I have seen they basically
have the 82 class package with the 60 series control gear.
Cheers
Bob
Stephen Molloy wrote:
Aus loco discussion mailing list"an 81 class is rated at 3300hp where as an 82 is only rated at 3000hp"
Is this correct ?? An 81 class has 2461kw (3300hp), of which 2237kw
(2999hp) is available for traction ( the other 300hp being used to run
auxiliary equip). An 81 is fitted with a 16-645E3B. A DL (which is older
than an 82) is fitted with a 12-710G3 , which i think is the same engine
fitted to 82's. A DL is reated at 2424kw (3250hp), or 2259kw (3029 hp)
available for traction. Unless the 82 has been down rated (which i doubt)
then this puts the 82 at 30 hp more for traction above the 81. I have
always been lead to believe that 81's were better pullers than 82's (and
better than V/Line G's for that matter).I think the above statement refers to the 81's gross power output, where as
the 82 figure reflectd the tractive figure.
Maybe somebody else can help with exact figures for the 82..l can't seem to
find themStephen Molloy
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