322 



POWER AND SPEED TRIALS OF 

 Table I. — Data and Results of Standardisation Trial. 



OBSERVED DATA. 



RESULTS. 



These curves are not actually drawn in again on Plate 64 in order to avoid confusion, but 

 the result of a computation is given below. 



In still water at 8 knots speed the R. P. M. for the no-wind conditions are 56.3, while the 

 R. P. M. for this same speed, when the wind was blowing against the ship, were 2.5 more, 

 or 58.8. 



Corresponding to these the M. E. P. for the still-water and no-wind condition is 15.3 

 pounds (read at 56.3 R. P. M.), and the M. E. P. in still water but against the wind is 17.8 

 pounds (read at 58.8 R. P. M.). To visualize this, if the ship were going over a current- 



