Second line of numbers under the cab number.

choochoopaul posted:

Got to see the Canadian National 6167 yesterday, and my friend asked what the numbers below the 6167 meant.  The 57% in that line, I did not have an answer for.  Any one help.

Some railroads put the "weight on drivers" as actual pounds, i.e. "540" for 540,000 pounds. Other roads simply put percentage of total engine weight on drivers, i.e. "57%".  Many Locomotive Engineers were paid a "bonus" for higher weight on drivers.

On the CNR system, one percent (1%) haulage rating was the equivalent to 1000  pounds tractive force to the nearest to the nearest thousand pounds,( I think that's the maximum (starting) tractive effort)

  (or example)  43,650 lbs T.E.    = 44% 

12,350 lbs T.E.  =12%

This is straight out a book and I don't understand a word of it... and of course mechanical changes, boiler pressure make a difference. 

Thanks to all for the answer to the question.

U-2-e would be the loco class and sub-class or variation, presumably.

Gregg posted:

This is straight out a book and I don't understand a word of it...

Tractive force isn't that tough to figure out if you read this.