FOREST ^ AND STREAM. 
I April 21, ■1900, 
ROSAMOND— SAIL PLAN, 
author believes it will work well with new boats because 
he has applied it to the old ones and finds that it handicaps 
them fairly well. This is no reason at all, because the 
new yachts are certain to be different in type frorh the old 
ones; and furthermore, this test has been applied and 
proved worthless in the case of every change of rule in 
the past. 
A new measurement rule should come with better cre- 
dentials than the mere recomrhendation of its author. 
First of all, it should have a logical basis, which should 
be stated in terms that can be understood by any yachts- 
man. If^ time allowance be abolished,' measurement rules 
have buF two functions, viz., (i) classification, and (2) 
restrictions on form and construction. 
It would add interest to the discussion of measure- 
Deck framirig-' about iriast, showing deck beams, carling and 
steel straps. The motjlding of the beams is shown about the 
fire hatcli. 
ment rules if they who think that the two- purposes of 
such rules can be better attained by a single formula than 
by separate regulations specially suited to each purpose 
would state their reasons for this opinion. 
Sextant. 
Rosamond. 
IS 
Auxiliary Craisiog Yawl. 
The accompanying illustrations show the general con- 
struction of the yawl- Rosamond, whose lines appeared 
last week. The keel, stem, sternpost, bedpieces, horn 
.timber and deadwoods are of Wisconsin swamp white oak 
one of the toughest varieties of the wood. The keel i 
g% X iSin. amidships, tapering to the ends. The stern 
post is built as first planned for the wooden rudder of a 
sailing yacht, but a false piece has been added aft to 
carry the stern bearing of the screw shaft. The shoe is a 
heavy forging with long arms, securing the false piece to 
the stenipost. 
The frames are of tamarack (hackmatack) and white 
oak, six sets of the former, sawn to shape, being used, all 
sided 3in. The oak frames are steamed and bent, sided 
2>^in. All frames are moulded 3in. at heels and i^in. at 
heads; and the .spacing is uniformly isin. Abreast of 
the mast two diagonal bent oak frames are used on each 
side. Heavy wrought iron floor straps are fitted to each 
alternate frame throughout the middle of the hull, with 
arms from 2 to 3>^>ft. long, riveted to the frames. All 
these frames were carefuly fitted to place and then gal- 
vanized. On every other frame floors of oak plank were 
used. The clamps are double, an outer clamp of white 
oak 63^ X i^in. running the entire length, with the deck 
beams jogged down J^in. into it. and an inner clamp of 
spruce, of the same size, stoping just abaft of the mizzen 
mast, worked up to the lower side of planksheer, the beams 
being jogged in for their full depth, as shown in the 
.sectional view. There are also two bilge clamps on each 
side, of white oak 5 x i.)4in., running the full length, the 
fore ends being joined by knees, while the after ends are 
bolted to chocks just inside the transom. 
The deck beams are alternatelj' of oak and tamarack, 
2^4 X 254in. They are sawn to shape and left square at 
the ends, where they jog into the clamps or butt against 
the carlins, but the lower edges are worked on a mould- 
ing machine, as shown in the small diagrams. The whole 
beams have the edges taken off, and the half beams are 
cut awaj' almost to a T section. 
The whole frame is thoroughly strapped with gal- 
vanized steel, V^iw. thick and from ilA to 2in. wide, each 
strao starting from the keel and turning over the head of 
a frame, continuing across the deck, being screwed to 
the frames and deck beams at everv intersection. The 
garboards. broads and next two strakes of planking are 
of the swamp white oak. theti tamarack is used to a foot 
"'love the ivat^r. the rest of the topsides being cork oine.ti 
The shecrstrake is of white oak, the planksheer is of 
white oak i 5-i6in. thick, and the deck planking is white 
pine, 2}/2 X I 5-i6in. All parts of the frame, keel, stem, 
deadwoods and the inside of the planking were thorough- 
ly soaked with hot creosote and oil of pine tar before 
setting up. 
The sides of cabin trunk, skylight and hatches are of 
rr 
On the Upper Mississippi. 
best Tabasco mahogany, ij-^in. thick. The top of the 
trunk is of white pine, Yiin. thick and ^y^m. wide, with 
an inner skin of yiir\. butternut, laid diagonally with 
varnished cotton between. The butternut forms the in- 
side finish of the trunk. The trunk beams are of 
tamarack, 2 x 2in.. spaced I2in. ; all worked like the 
deck beams. The interior joiner work is of butternut, the 
ceiling being of -xsin. beaded stuff. The drawers and 
|lockers are of white and red cedar. The dining table has 
leaves of quartered red oak, paneled to allow for swelling, 
After end of trunk, cockpit, cockpit rail. 
