84 



Taking the first of the above runs, we get — 



First means, . . . 



9*913 



9-982 



9-923 



9-976 



9-880 





Second means, . . . 



9-880 



9-952 



9-949 



9 -928 







giving the true mean speed of the ship 9*227 knots, or about 10 statute 

 mile per hour. 





HAL] 



F BOILER POWER. 









Speed at measured Mile. 







Time. 



Speed. 



Eevol. Engine. 



Press. Steam. 



Vacuum. 





m. s. 







lbs. 







. . 6 27 



8-022 



80 



19 



26 





. - . 8 54 



9-363 



81 



19 



26§ 





. . 8 56 



6-716 



81 



19 



26 





6 19 



9-^99 



82 



19 



261 



Average speed at half boiler power, 8' 105 knots. 

 In all these runs the force of wind was 5. 



STEERING QUALITIES. 



Angle of Rudder. 



Time of Full Circle. 





Degrees. 

 30 

 29 

 27 

 28 



m. s. 

 4 14 

 4 18 

 4 3 

 4 37 



i \ full speed. 

 Starboard, j 1 



Starboard, ) halfs P eed - 



