134 
FOREST > AND STREAM. 
[Tjo. 14, 1903. 
Eustes launch will have a 9 horse-power engine and the 
engine of the Smith launch will be 8 horse-power. 
The sale of the 70ft. schooner Amorita last week 
to Richard Mansfield by Hollis Burgess was one of the 
most important made during the winter. The yacht is to 
be delivered to Mr. Mansfield at New London and it is 
expected that he will race her throughout the coming 
season. 
The O. Sheldon Company is building a -25ft. speed 
launch from designs by Fred S. Nock, of West Mystic, 
Conn., for Mr. Paul N. Goodrich. She will have a 14 
horse-power motor. 
MacConnell Bros, have sold the 21ft. knockabout, 
Friendship, to Mr. E. B. Curtiss, of the Indian Harbor 
Y. C. ; the 30ft. auxiliary yawl, Akista, to Mr. John N. 
McCrae, of New York; 48ft. cabin launch, Water Witch, 
to Dr. Wallace C. Clark, of Philadelphia, and the gaso- 
lene launch, Stellar, to Mr. Guy C. Hardy, of Hope 
Sound, Fla. 
Arthur Binney has turned out the lines of a fast steam 
yacht for Mr. Fred Wells. She will be used on Lake 
Champlain. John B. Killeen. 
Design for a Swedish 5-Tonner. 
Mr. B. B. Crowninshield's success in designing racing 
yachts has given him a world wide reputation, and in 
consequence he is constantly getting orders from 
yachtsmen who live in remote corners of the globe. 
His productions have been succer: ful in Germany and 
Australia, and a boat built from 1 is designs last sea- 
son for a syndicate of San Francisco yachtsmen met 
all comers on the Pacific Coast and did not suffer de- 
feat. 
The design we publish this week is the smaller^ of 
two boats that Mr. Crowninshield designed for racing 
in Swedish waters next summer. The boat is designed 
under the Royal Swedish Y. C. rule, which is as fol- 
lows: Length (in meters) times the sail area (in square 
meters) divided by 131. A-Ir. Crowninshield believes 
that a narrow scow of the general type of Independ- 
ence will do best under this rule. The boat is being 
built for Mr. A. Plym, of Stockholm, Sweden. The 
particulars of the design follow: 
Length — 
Over all 12.85 meters 
Waterline 7-3 meters 
Overhang — 
Forward 2.89 meters 
Aft 2.66 meters 
Beam — 
Extreme 2.79 meters 
W. L 2.62 meters 
Transom 1-74 meters 
Freeboard — 
Stem 952 meters 
Least .568 meters 
Transom .609 meters 
Draft- 
Extreme 1-98 meters 
To fairbody 59 meters 
L. W. L. plane I5-8S sq. m. 
Amidship section i-33 sq. m. 
Maximum girth of hull 5-S8 meters 
Displacement 4,919 kilograms 
Ballast- 
Outside 2,288 kilograms 
Total 2,288 kilograms 
C. G. outside ballast aft of C. B 0.19 meters 
Kilograms per centimeter at L. W. L. 162.8 
Kilograms to alter W. L. i cm. at 
L. W. L 
Area — 
Lateral plane of hull and keel.. 
Lateral plan below fairbody 
Rudder 
Total- 
Lateral plane below fairbody. . 
Wetted surface 
Area — 
Sails, actual 84.3 sq. m. 
Sails, rated 89.3 sq. m. 
Ratio — 
Sail area to wetted surface 3.10 
Sail area to lateral plane below 
fairbody i5-20 
Displacement cu. meters to cube 
of L. W. L .01235 
Displacement cu. meters to mid- 
section X L. W. L .495 
Length to beam at L. W. L. . . . 2.79 
Overhangs to L. W. L .76 
Ballast to displacement .467 
Rudder to balance lateral plane. .227 
(C. B. aft W. L.) to L. W. L.. . .52 
(C. L. P. aft W. L.) to L. W. L. .598 
(C. E. to C. L. P.) to L. W. L. .097 
(C. E. to B. P.) to L. W. L 0575 
Origin of the Centefboard. 
Editor Forest and Stream: 
It appears odd that after corrections have so frequently 
been made as to the origin of the centerboard, new claims 
for its invention, as of comparatively modern date, 
should be made so frequently. In October, 1893, in the 
cclumns of The Sun, it was claimed to be a Cherry 
street device" of 1820. A letter in reference to this, writ- 
ten by myself, appeared in that paper and was copied into 
Forest and Stream of October 28, 1893- Other refer- 
ences to the subject were made in your journal November 
4 and December 23 of that year. The Field also ab9Ut 
this time, and indeed previously, supplied very interesting 
data in reference to the subject. These different ac- 
counts have not, so far as I have seen, had their correct- 
ness questioned, and they will make interesting reading 
to any persons who can refer to them. I may say briefl;^ 
that they show the centerboard, in some form, to have 
been in use over 360 years since. That Captain Schank 
of the British Navy built a vessel with a centerboard in 
Boston in 1771 ; that Captain Shuldham of the British 
Nsvy e^l]itiite4 and lodged in the Ipswich Museum a 
13.92 
7.07 
4-53 
1.03 sq. m. 
5.56 sq. m. 
26.75 sq. m. 
