TURBINE STEAM YACHT WINCHESTER. 67 
Pumps.—The various pumps are shown in the following table :— 
Make and type Size 
Main air Warren 10” x 22” 16” 
Main feed Warren Simplex 13” X 97K 14” 
Auxiliary feed Warren Simplex 13” X 9” XK 14” 
Main circulating Centrifugal 12” suction 
and discharge engine...| 7” <5” 
Warren Simplex 4Y"X 5%" X & 
Warren Simplex 244” Xx 4” x6” 
Warren Duplex 44” X 8’ X12” 
Centrifugal driven by 
electric motor 
Centrifugal driven by 
electric motor 
Warren Simplex 34” X5” X 6” 
Other Ausxiliaries—The other auxiliaries consist of the following :— 
Feedwater heater of 248 square feet. 
Fuel oil heater, 75 square feet. 
Lubricating oil cooler, 63 square feet. 
Two forced-draft blowers driven by Terry turbines. 
Electric outfit consisting of a 10-kilowatt direct-current generator driven by a 
Curtiss turbine. 
A special type of steering engine made by the Hyde Windlass Company, with 
two cylinders, each 4 inches by 4 inches. 
A Hyde steam windlass with two cylinders, each 4 inches by 4 inches. 
Trials.—The trials were run, in smooth water, over the government course off 
Rockland, Me. Twelve runs in all were made with the following results :— 
Estimated 
S.H.P. 
Speed 
Estimated Speed 
in knots 
S.H.P. in knots 
Direction 
Direction 
De 7020 30.38 3272 
Boaoec 7360 32.11 3194 
Sicoase 7580 30.98 1155 
Chabos 7485 32.09 1320 
Oaeaue 7360 30.90 269 
206 
poose d 7470 32.32 
