The sun. [volume] (New York [N.Y.]) 1833-1916, 1899-01-20
HER HULL.
The New American Cup Defender to Be
Observation-Disclosures Depth.

hnuckie-J Otnteu' Depth.
From the Providence Journal.
Experiments have been going on recently
with various kinds Of metal plating in order to
test their adaptability to the special work to be
done. Things have TRANSFERRED last week which
go to illustrate that the new flyer will have a
style OF plate joints all over the hull that was
never introduced in the building of cup de-
Tenders heretofore. although the plan is not
unknown in shipbuilding.
The plan is what is known as "knuckle
joints. that is. the different strakes OF plating
will not lap one on top of the other like the
method used in plating the Defender. Instead.
as all indications show. both edges and ends OF
every plate will be Hanged. the fianges TO point
inboard and abut one against another through
to be ,rivetted firmly together in the inside OF
the plates. thus presenting, a surface OF hull
viewed from the outside. II The inward W IN pro oe,ne
ing tanges are an inch or more in width all
through the boat. such backing. as can be
readily seen. will present n very stout frame.
which. without much doubt. will be needed to
lug the cloud of canvas the 30 boat will be
Questions may, arise as TO how these Joints
can be made watertlght. In explanation it can
be be ST. stated that hats cement I'm nlto or some 4S other adhesive
other words. between the Hanged edges Of the
plates. and the latter pressed one against the
The above method would not only do away
with the corrosion bother to a great extent on
dCCOunC OF SO many TINetS INSIDE tine plating
and away from the water, but would leave a
rather smooth hull 10 push through the water.
and. besides. IL there was any bother with these
riyets. they could be removed and replaced
with new ones from the interior of the ship. do
ing away with the trouble of taking the boat
out on a marine railway.
In the "knuckle-Ioint" method where a
frame intercepted the fianges a slot would
have to be cut through the latter to make a
good fit.
While the actual plating OF the boat is some
weeks off as yet. enough has been done in the
south shop and machine shops to show which
way the cat is going to jump. This Hanging
OF bronze plates has been carried on extern
sively the past week. giving the metal a test as
TO it's bending qualities 1t has even gone so
far that Hanged plates have been rivetted to-
gether as a test and found to work all right.
Here are some figures recently obtained rela-
tive TO some hull dimensions. as shown by an
giles and curves:
From the base line Of the lead keel upward
to the top of the deck will be % feet. This re-
fers to the midsections., 4 this point the deck
will have n crown Of 10 inches upward from the
actual beam. From the line where the beam
is measured downward. straight to the base Of
the lend keel. is ~ feet ? inches. Allowing a
freeboard of 3 feet q inches and suhtrnrtinr
the same from the height of the boat from the
base OF the keel Upward. exclusive Of the crown
Of the deck. would give n draught OF water Of %
feet 3 inches. At the midsection the lead keel
will be . feet and between 4 and 5 inches in
height, the greatest bulk Of lead being forward
OF the midsectior.