Evening star. [volume] (Washington, D.C.) 1854-1972, 1893-01-14

ment no lesseniug Of the defensive strength Of
the YES, el has been incurred
Briefly then. these advantages. comparing
the Iowa with the Indiana, summarized as
follows: Greater length. greater beam. more
than 1000 tons additional displacement. in
creased defensive power. coal endurance and
speed, together with the ability TO work the
forward twelve-inch guns in almost any coadi-
ton Of sea.
The electric lighting plant will consist of four
sers, each SCI having an engine. DYNAMO and
combination bed-plate. and each dynamo hsv-
Ing rated output OF 500 amperes at 80 volts
The total weight Of the four sets, complete. is
about sixteen tons. The total We cht OF the
whole electric Inhalation. including dynamos.
engines, bed-llstes. all fittings, wiring and
stores and four search lights, is about forty-five
tons.
There will be six torpedo tubes-one bow.
one stern and two on each broadside, one for
ward and one abaft the beam.
Steel ring nets, carried bv swinging Blooms.
viii be provided for resisting the attack of an
enemy's torpedoes
THE ENaTNFs.
The propelling engines will be rights and
lefts, placed in wster-tight compartments and
separated by a madeleine bulkhead. These
engines will be Of the vertical. inverted cylin-
der, direct acting, triple-expansion type, each
with high pressure cylinder thirty mine inches
inches and low-pressure CYLINDER eightv-five
inches in diameter-the stroke o. all pistons
being forty-eight inches. The collective indi-
Gated horse power of propelling, air pump and
circula ting pump engines will be 1000 when
the main engines are making about ll2.5 revo-
luiions per minute.
There will be three dsube-endei main and
two singe-ended auxiliary steel boilers OF the
horizontal return-fre tube tyne al con, .ructed
for working pressure of 100 pounds per square
inch. The boilers will be placed in four wa err
tight CONF artments ms shown on the drawing.
There will be two a.hwartship fire rooms in
each Of the main boiler compartments. Each
of The double-ended boilers wall have eight cor
rugated furnace fues AZ inches internal diam
eter. The total heating surface Of the main
boilers will be abou, 23.95l square feet. meas
ured on the outer 81 face of the tubes. and he
CRATE surface $50. The after main boilers will
be double ended. l6 feet inches out lie diam
eter and 10 feet long The forward boilers will
consist of one double-ended boiler q feet long
by is feet inches in diameter, and two single
ended boiler. 3 feet lo19 inches long and 10 feet
inches IN diameter.
There will be two smoke-pipes. The forced
draught system will consist of one blower for
each ire room. the blowers discharging into an
alright fire room. Air tight bu kheads will be
fitted 80 as TO reduce the space to be maintained
under pressure.
Like other ships, artificial ventilation will
supplement the natural wh"n the matches are
battened down or daring such occasion where
an increased flow of fresh air may be found nee
essarv 70 insure comfort and TO prevent the ac-
camgia'ion OF noxiouS gases.
Each compartment is independent Of the
Others aud may be flooded or drained a: con-
yonienca. either to quench a ire or to neutral
ize The effect of leakage.
Electrical ard mechanical selcgrarhs will put
al portions Of tbs vessel in commu ricatiun
with various established centers where the com
mgnding officer NAV fl his station during nc
tlon or while navigating the ship.
TEE QUARTERS.
In regard to fittings 20 secure comfort for the
officers and crew this ship does not differ mate
rally from the coast-!ne battle ships save in one
| particular. and thl. an important one the ad-
ditional accommodation for the crew AFFORDED
| by the forecastle deck. This is a valuable
feature. particularly in tropical climates o,
/ when the ships company may be increased By
the presence OF prisoners or rescued fellow sea-
men.
As in the other ships the electric search lights
will afford means TO discover the enemy or
guard against the attack of torpedo boats:
! while the small guns in the tops will rrpe such
small fry and at short range comparatively
sweep the enemy from their unprotected sta
tions.
It was in recognition o, the active part that
the people of Iowa taking in the building of
our new navy" that the Secretary named this
most advancedtype of our battle ships after
that state. and il Is hi expressed hope that the
same nled and uninterrupted prosperity
may folio the advent of ihis battle ship in the
service tina. characterized the admi,sion Of Iowa
into the Union.
The contract for the construction Of the Iowa
was last week awarded to C-smp < Sons Of Phil.
ade! hia at their lad Of S3,0l0.010.