158 COMPARATIVE RESULTS IN STEAM AND COAL CONSUMPTION. 

 S. Y. Vanadis. — Details of Turbine BivAding. 



Turbine. 



Tip 

 clearance. 



One high pressure. 



•03" 

 .03" 

 .035" 

 •035" 



30 rows of contact dutnmies, i" section, f" pitch. Dummy drum diameter 32". Dummy clearance .015". 



Two low pressures. 



■035" 

 .035" 

 .04" 



•05" 



.055" 



.06" 



.06' 



.o6"S.W, 



22 rows of contact dummies, i" section, |" pitch. Dummy drum diameter 40I". Dummy clearance .02". 



Two astern. 



32" 



10 

 10 

 10 

 10 



i" 

 I}" 



120B 

 120B 

 130B 

 132B 



li" 



li" 



.04" 

 .05" 

 .06" 

 .06" w. 



6 rows radial dummies, i" section, §" pitch. Dummy drum diameter 30I". Dummy clearance .02" 



per side. 



The owner reported that the vessel was consuming very much more 

 coal than the guaranteed amount, in fact, so much more that the steaming 

 radius was most inconveniently short, the bunker capacity of 300 tons 

 having been based on the coal consumption guaranteed with a safe margin 

 for bad coal, foul bottom, etc. 



At the writer's request an exhaustive series of tests was run in the 

 autumn of 1908, after the turbines, propellers, condensing plant, etc., had 

 been thoroughly overhauled to the approval of the New York representative 

 of the Parsons Marine Turbine Co. During these tests Mr. H. B. Anderson 

 and three assistants were present on behalf of the Company, the writer 

 and staff from his office on behalf of the owner. 



