AMERICAN LEGION CLASS. 193 
which is partly inherent on a turbine ship and partly due to the extra auxiliaries needed in 
a passenger ship. 
There is also shown, on Plate 59, the results of standardization trials on the President 
McKinley, and on Plate 60 the trials of the American Legion. These are both at a lighter 
draught than the lowest the models were tested at. 
Both of these ships were built by the New York Shipbuilding Company, and the Ameri- 
can Legion is fitted with wheels similar to those which were used on the self-propelled model. 
The results of these tests have been presented as candidly and completely as possible, 
and it is hoped that they will be of value to the members of the Society. It is to be re- 
gretted that after spending so much time and money that the final results should fall so far 
short of what one would wish, because one of the ships was not standardized on a course of 
sufficient depth to obviate any guessing at the true speed in deep water. 
The author wishes to acknowledge the courtesy of the New York Shipbuilding Company 
in furnishing the data on model tests and other information. 
DISCUSSION. 
Mr. Cuartes F. Batty, Member of Councitl:—As Mr. Warriner stated, two of these 
vessels were built at Newport News. The general particulars of the vessels were the same as 
those built at the other yards; the machinery was somewhat different. The turbines were of 
the Newport News-Curtiss type, with slightly larger pitch diameters of the blades, and the 
condensers were somewhat different. The boilers were of the Babcock and Wilcox type. 
I have a tabulation showing the trial results of the two vessels built at Newport News, 
as compared with those built at the other yards, as compiled in Mr. Warriner’s paper (see 
Plate 61). The vessels built at Newport News were originally named Golden State and 
Silver State; these names were changed to President Cleveland and President Jackson. 
The main condensers on these vessels were condensers not built at Newport News but 
inherited from the Shipping Board. They were built, we were informed, under war condi- 
tions. We found that they needed to be re-tubed and the internal parts reconstructed, but 
the design was not essentially changed. The condensers were constructed on the Lovekin 
principle. They were built by order of the Shipping Board by outside parties and were left 
over from cancelled ships. Worthington air pumps and Parsons augmentors were installed 
by us. The air pump discharge on these vessels during trials was only about 3° to 6° F. 
below the temperature corresponding to the vacuum. 
The boiler heating surface amounted to 41,376 square feet, about the same as fitted by 
the Bethlehem Company. The boilers were fitted with Babcock and Wilcox oil burners. In 
this connection, I would refer to a statement on page 189 of Mr. Warriner’s paper, to the 
effect that the burners of the President Pierce were of the navy type, and that on the 
subsequent ships the burners were changed to the Dahl type, which resulted in more favor- 
able working conditions. I have the impression that other changes were also made coinci- 
dently with changes in burners, which might have affected the fire-room conditions referred 
to. It would be interesting to hear from Mr. Warriner as to this. 
Through the courtesy of the New York Shipbuilding Corporation, I was present on the 
