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DESCRIPTION AND TRIAL OF THE TURBINE STEAM YACHT 
WINCHESTER. 
By E. A. Stevens, Jr., Esg., MEMBER. 
[Read at the twenty-fourth general meeting of the Society of Naval Architects and Marine Engineers, held in 
New York, November 16 and 17, 1916.] 
The steam yacht Winchester is the fourth vessel built for Mr. P. W. Rouss to 
bear that name. Like all her predecessors she was built primarily for speed but is 
considerably larger than her predecessors; in fact, she is the largest high-speed steam 
yacht ever built. 
The Winchester is a twin-screw vessel, fitted with Parsons turbines and de- 
signed for a speed of 29 knots at about 360 tons displacement, with the main en- 
gines developing about 7,000 shaft horse-power. The vessel was built by the Bath 
Iron Works, of Bath, Me., from designs furnished by Cox & Stevens, of New York 
City. 
_ Hull Data. 
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The hull is built of high tensile galvanized steel of substantial scantling, her 
plating is 11 pounds amidship to 8 pounds at the ends, the shear strake from 13% 
pounds to 8 pounds, while the keel is from 12 pounds to 10 pounds. The frames are 
correspondingly heavy, spaced 21 inches apart. From the above it can be seen that 
although high speed was desired, strength was not sacrificed. She has been given 
several severe tests last summer and has yet to show a weak place. She has also 
proven herself to be very able, as well as comfortable, in a seaway. 
Accommodations.—As can be seen from the plans, she has plenty of accommo- 
dation for both owner and crew, in spite of the large space given up to engines and 
boilers. 
On the main deck forward, under the raised forecastle, is a large locker for 
the bos’n stores, etc.; aft of which are the officers’ quarters, consisting of the bath- 
room, mates’ and captain’s staterooms on the starboard side and the chief engi- 
neer’s and assistant engineer’s rooms on the port. Next comes the officers’ mess- 
room, aft-of which is the pantry, both extending almost the full width of the ship, 
there being a passage on the port side. The owner’s dining saloon is in the forward 
deck-house, the top of which is an extension of the forecastle deck. 
