Evening star., 1896-08-22

will have official pre-
lminary acceptance
trial According to the present program OF
the Cramps, the Brooklyn will arrive at
Boston Sunday evening Monday morn
ing. II the weather is good Monday the
vessel will be given contractors trial and
may repeat this next day. With fair
weather Wednesday and a smooth sea, the
Brooklyn will go on her official trial and
will break the speed record for vessels OF
her type.
Must Make Twenty-One Knots.
Naval experts predict that she will make
at least twenty-five knots, and will incl
dentally earn a bonus OF something like
slO0.oO0 for her builders. Her contract
calls for twenty-one knots
The course over which the Brooklyn will
run lies between Cape Ann and Cape Por-
poise. 1t is il.o knots long: 1t will be
marked by seven vessels. The trial Will
consist Of two runs of about two hours
each.
An Advanced Type.
As the old Brooklyn. Of war fame. was
an advanced type of the ship Of her day.
is the Brooklyn of today the leader in
modern naval architecture The Brooklyn
has been under construction for about
three years. She is something like the
cruiser New York but is heavier, has a
more powerful armament and better pro-
lection for her men and guns. On account
Of these advantages, she has been face
tiously called the Greater New York.
The displacement of the Brooklyn is 9,l.g
tons The Brooklyn's main battery con-
sists in part of eight eight-inch guns.
Here are her dimensions:
Length on load water line 4pO.Jp feet:
beam, extreme, 6i.SS feet: draft, mean, nor
NAL. ~ feet; displacement, normal, 9,27l
tons; displacement trial. 9,lJ0 tons; indi-
Gated horsepower. 5000; speed in knots,
per hour. Il: total coal capacity, 1,753 tons;
coal carried on normal displacement, $40
tons.
The Brooklyn is provided with twin
screws Her engines, four in number, are
OF the vertical triple expansion type. The
forward engines are so arranged as TO be
capable of being readily uncoupled from
the after engines. (which permits OF cruis-
ing at low speeds There are seven boilers,
five double-ended and two single-ended.
The vessel carries two military masts
with fighting tops and is free from rigging.
The boats are slowed clear of the blasts Of
the guns. Two lifehoats are so carried
that they may be readily lowered under all
conditions of weather.
Protection of Hull.
The hull is protected by means of a steel
protective deck worked from stem to stern,
and supported by heavy beams. The bot
tom edges of this deck amdships are five
feet six inches below the tWenty-four foot
waterline, the top of the deck rising TO this
WdlerNne at the center OF the vessel.
The armor is six inches thick on the
slopes of the deck over the machinery and
boilers. 1t is three inches thick on the
horizontal portions. Forward and abaft
the machinery and boilers to stem and to
stern, the deck is. at the thinnest part, two
and half inches in thickness.
Protection of the hull from injury TO the
waterline region is afforded by means OF an
armored belt, three inches in thickness,
extending the length of the machinery and
boiler space. and in depth from four feet
ABOVE the twenty-four-foot waterline to
four feet three inches below that line.
The space between the armorei deck and
the deck above for a length corresponding
to that of the inner bottom is subdiyided
by watertight bulkheads into thirty-eight
coal bunkers, exclusive of Golfer dams and
passages. The space forward and abaft
these bunkers is subdivided by watertight
bulkheadS for stores.
A coming tower. eight inches in thick
ness, Is carried in a commanding position,
having tube to the protective deck five
inches in thickness
The battery of the vessel is composed of
eight S-inch breech loading rifles of thirty
five caliber: twelve 5-inch breech loading
rifles, rapid fire guns: twelve 6-pounier
rapid fire guns: four 1-pounder rapid fire
guns; four machine guns.
The S-inch guns are mounted in four bar
bette turrets, placed one forward and one
aft on the center line OF the vessel: and
one on either side of the vessel amidsnips
Two of these turrets are operated by cleo
tricity and two by steam
The use of electricity for turning turrets
Is an innovation in Anne naval archi-
lecture, and its trial on the Brooklyn will
be watched with interest hy the ertire
naval world. The guns in the turrets on
the center line of the ship have train of
80 degrees; those in the side turrets fire
from right ahead to right astern or are
able to train through an arc of $50 degrees
each.
The armor forming the barbettes which
pl otects the carriages. platforms and tur-
ret machinery, is eight inches In thickness
for portion equivalent to the train Of the
guns, the remaining portions being reduced
to four inches in thickness. The ammuni-
ton hoist for each turret is projected by
three-inch armor tubes which also suprort
the turrets.
The armor OF the turrets is ; IL inches in
thickness. The five-inch guns are protect
ed by fixed segmental shields. five inches
In thickness. The crews of these guns are
further protected from explosive shells by
splinter bulkheads, ! 1-2 inches in thick
ness.
The torpedo outfit consists of five tornedo
tubes, one in the bow and two on each side
SIX torpedoes and an allowance OF gun cot
ton for mines and miscellaneous purposes.
The ship was designed to have a radius
or action at full speed of !, 75S knots and A
radius OF action at 10 knots of G0sS knots.
Her complement of officers and men viii
be J6l persons.