178 COMPARATIVE RESULTS IN STEAM AND COAL CONSUMPTION. 

 Speed and Revolutions, Provincetown, July 14, 1910. 



Number of run. 



Speed, knots. 



Revolutions per minute. 



Main 

 engine. 



Port 

 turbine. 



Starboard 

 turbine. 



Remarks. 



Mean of i and 2. 



Mean of 3, 4 and 5 . 



Mean of 6 and 7. 



Mean of 8, 9 and 10 



13- 



Mean of 1 1 , 1 2 and 1 3 



H- 



15- 

 16. 



Mean of 14, 15 and 16. 



17- 



18. 



19- 



Mean of 17, 18 and 19, 



3a. 



Mean of la, 3a and 3a 



13.698 

 13.091 



13-394 

 14.610 



14-587 

 14-730 

 14.628 

 12.479 

 13. 1 28 

 12.803 

 13-636 

 13-767 

 13-550 

 13.680 

 12.414 

 12.224 

 12.566 

 •2-357 

 "-233 

 12 .016 

 II . 20 1 

 II .616 



'0-345 

 9.326 

 10.390 

 9.847 

 12.903 

 13-636 

 13-383 

 13-389 



157-5 

 156-1 

 156.8 



161 .0 



161 .9 



162 .2 

 161 .7 



85.0 



89-5 

 87-2 



146. 1 



'47-5 

 145.6 



146-7 

 J32.7 

 132.2 



132-1 



132-3 

 122 .4 

 124.2 

 122 .6 



123-3 

 105.2 



105-9 

 105.2 

 105.4 

 142.9 

 144.0 

 144.2 

 143-8 



316.0 

 309.2 

 312.6 

 487.8 

 5230 

 545-3 

 519-2 

 625.0 

 628.2 

 626.6 

 471.1 

 478.0 

 470.4 

 475-1 

 403-3 

 402 .0 

 40S . 1 

 402 .6 



354-5 

 362.4 



357-4 

 359-1 

 278-5 

 276.8 

 278.2 

 277.6 

 460.0 

 462 . 1 

 462.0 

 461.3 



318.6 

 313-5 

 315-9 

 500.0 

 530-0 

 554-4 

 533-1 

 620.7 



635-9 

 628.3 

 473-0 

 474-5 

 468.1 



472.5 

 402 .2 

 402.0 

 404.1 

 402.5 



354-5 

 361.4 



358-3 

 358.9 

 281.0 



277.6 

 280.7 



279-4 

 458-0 

 459-7 

 45S-0 

 458-8 



Steam to main engine, 

 turbines dragging. 



Direct steam to main 

 engine and turbines. 



'Turbines with main 

 engine dragging. 



Runs, 8 to 19 inclu- 

 sive under regular 

 steaming conditions. 



Regular steaming con- 

 ditions, July 13, 

 1910. 



