Polarity for QSP1R:

Looking from the end with power connections the pole tip strengths at ~100 amps are:

               |      |
  S  -0.62 T   |      | N 0.62 T
               |      |
           ----       ----
                  
		  x
                  
            ----       ----
               |      |
  N =  0.62 T  |      | S = -0.62 T
               |      |