|   Selected revolutions per minute (rpm)  |       PF value  |       Corresponding tension (KPa)  |    
|   500  |       1.72  |       5  |    
|   700  |       2.01  |       10  |    
|   1200  |       2.48  |       30  |    
|   2200  |       3.01  |       102  |    
|   3100  |       3.30  |       199  |    
|   4900  |       3.70  |       501  |    
|   6500  |       3.95  |       891  |    
|   8700  |       4.2  |       1585  |