Help request for information on the Hamersley Iron Railway

[loneaussie@aol.com (LoneAussie)]

I have been asked by a friend in Brazil if I know anything of the Hamersley
Iron Railway (HIR) operation. He would like to see how HIR compares with a
similar railway operation in Brazil. Not being knowledgable on the HIR I
thought I would try aus.rail for help. What he would like to know is:-

    1.. What is the weight of a train both loaded and empty? 
    2.. What locomotive types and combinations are used? 
    3.. What are the line speeds for loaded and empty trains? 
    4.. What is a reasonable normal stopping distance from line speed for such
trains (on the level and on 1% grade up or down) both loaded and empty?

Does anyone happen to have copies of the Tractive Effort curves for the
locomotive types or knows where to get copies of them.

Any information will be gratefully recieved.

Thanks in anticipation.

Mike Drew (loneaussie@aol.com)