The morning call., 1893-01-06

II
the nrerooms steam aud air pressure gauges
were taken. temperature taken OF the freroom
and feedWater. and the revolutions of blowers
recorded. The turns at the end OF the straight
runs. which were made at full power, were con-
sidered part OF the run, bat no data were taken.
The Monterey got under way early In the morn
Ing and at 9:45. after preliminary run OF abou,
an hour, the official trial began and lasted unit.
ABOUT :65 r. NJ. Six straight runs were made
and eighteen sets Of cards taken. The average
number OF revolutions was 1924 for The star
board and 1907 for the port engine. The
vacuum averaged 20 inches. the air-pumps
working very regularly aud required little at
Iention.
The steam pressure at the boilers for the first
two hours was about L so. During the latter half
OF the run it averaged 40
After the changes in The machinery above re-
ferred to, the engines were fully abs to work off
all the steam the boilers furnished. The actual
power developed cannot yet be determined but
the Indications are that il will be somewhere
between $500 and 54OO.
Everything In the boiler-rooms worked well.
Boilers and piping were as tight as drum,
and the Ward boilers especially gave satisfac-
ton. there being neither sudden fluctuations OF
water level nor of steam press ure and this with
out using the reducing valves with which the
branch pipes from these boilers to the main
steam pipes are supplied.
1ne blowers gave no trouble running at an
average OF $50 turns. The air pressure main
taned rose from 81 Inches at the beginning Of
the trial TO inches at the end, the average being
3.3 inches.
The temperature In The boller.rooms was about
10 deg. ait and 135 deg. forward.
The engines ran smoothly. there was little
vibration. and the bearings showed no ndica-
Iion OF heating. Throughout the run all the
auxiliary machinery required little care.
The speed was about 10 knots. recorded by
patent log. Making allowance for turns this re-
suit would indicate that on a straight course the
ship would not fall far short OF the expected 16
knots
The ship drew about 18 inches more aft than
forward. as II had been found that this was The
best trim. Opinions agree that her steering
qualities are good. AS on former runs the water
rose at the bow aud poured over the deck for
ward. The weight OF water so carried was esti-
mated at forty tons. With her low freeb0ard
this is unavoidable aud it can be prevented only
by building up false bow.
The general appearance and features OF the
Monterey are sufficiently known to THE CALLS
readers. AT the same time brief account will
be OF interest In connection with results of the
official trial.
The Monterey Is monitor OF the most mod
ern type as regards armor, armament and power
OF her propelling machinery. Her principal di-
mansions are: Length on load water line 256
feet. breadth 50 feet, depth OF bold IA fcet7
inches. mean cruising d aft 141a feet, normal
disrlac ement 4030 tons. At this displacement
the fr eboard Is about 80 inches. BY admitting
water into The compartments OF the double bot
tom, which holds about $50 tons, the huh may
be sunk entirely out OF sight, tue only important
parts then Remaining visible being the turrets,
the coming tower the military mast aud The
smokepipe.
The original design Of the ship called for side
armor 16 inches thick at the tbIckest part and
an armament consisting OF one 16-inch 110-ton)
gun, one 12-inch (46-ton) gun anc fifteen rapid
fire guns. This was subsequently changed.
The main battery now consists OF two I2-inch
46 tom guns in The forward turret and two To-
Inch (27-ton) guns In the after turret. The Sec
Dndary battery consists or six 6.pounders
mounted on the superstruciure deck and four
/ -poanders TWO mounted on the bridge ana two
In the military top.
The belt arm0r is now Is inches thick over
Ito feet OF the ships length and and inches
II the ends. From line feet inches above
he armor shelf the 13-inch armor tapers TO D
inches at the armor shelf and the and inch
,rmor TO inches. The side armor is backed by
10 inches II teak secured TO the skln-piating,
consisting OF TWO 12-tneh plates. There are five
1arbette turrets The barbette OF the forward
3 Inches thick; the revolving part Is inches
hick. For the after furret. Ia which are mounted
he 1O-inch guns, the corresponding thicg nesses
II armor are 1112 and 7I5 Inches. The coming
over Is of 10-inch steel, connected with the
lrmored deck by 16.inch tube inches thick.
The sino;epipe and the ventators for supplying
he fUrced-drsIt blowers likewise are armor ed TO
height OF feet above the armored deck By
leel Inches thick.
The arnnred daeIg oanSIetc NJ fSvo ooursas ~
llate OF an aggregate TIL ckness of inches from
he EN- 10 the after side OF the after barbette
nd ait Of that OF inches. The bow Is formed
or rammlng. and has special strengthenings.
The double bottom extends over the full
ength OF the ship and up TO the armOr shelf on
aeh side. IL IL divided by water-tight frames
nd ioaRiudlnals Into numerous water.tight
compartments, divided into separate groups.
The compartments OF each group communicate
Trough fush-cates operated from accessible
,laces above the double bottom. by opening
which they may be filed with water or pumped
)ut. The wateriight subdivision is continued In
he hold ana on the berth deck. In the hold are
ocaed the various storeroOmS and the mag
zines and shelroOms. On the berth deck
Onward are quarters for the crew, the sckbay
md dispensary on the star board slde the
dynamo room on the port side. and the lower
The prison, firemen's washroom and
Dom for the ventilatiug blowers amidships.
All on the berth deck are the CAPTAINS and
Itier officers quarters aud the steering engine
Dom. Communication Is established on the
'erth deck fore and aft By wing passages out.
'oard OF the machinery spaces and fore aud afr
The coal-bunkers holding about |
100 tons, extend fore ana aft the full length OF
he engine and boiler rooms aud thwartships |
onward OF the latter.
In the superstruclure are the various Offices |
he warrant officers quarters. the engineers |
workshop the galley, waterelosets and lava |
cries, and the dlstilleT-r0om. The different |
compartments OF the ship are drained aud |
Jumped out through two pipes located Ia The |
oube bottom. f0ur-inch pipe, known as the |
secondary drain. on the port Side. communicates |
through stopyalves with the mldship compari- |
lents OF the double bottom, into which drain all |
lie others. All waller tight compartments |
boye the double bottom drain into an eleven. |
1ch pipe, the main drainpipe, on the star board |
,iGe. Stop and non-return valves connect this |
Ire With number Of drainage cisierns, aud |
'luice valves, operated from accessible places |
Ire provided In the water-tght bulkheads 10 |
III ect the water to the nearest drainage elstern.
There are number OF connections between |
he two drain pipes so that any compartment |
an be pumped out through either one. -Four |
and pumps, a steam pump in each engIne.room |
nd the centrifugal circulating pumps for the |
main condensers draw from the drainage pipes. |
For yeniilatlng the ship two Sturtevant |
lowers OF 10000 cubic feet capacity per minute
re supplied. They are arranged so that they |
nay operate either to draw foul air from or
orce fresh air 10 the different compartments.
he main ducts lead fore and aft the whole
englh of the ship, one on each side, under the
erth deck. with branches TO all the conpart-
tents and openings controlled by registers.
or the ammunition spaces and the compart-
rents under the wing passages these can be
perated from the berth Geek and the compart-
tents ventilated before being entered.
The ship Is steered by hydraulic power the
ressure 600 pounds per square inch) being
lprlrd by a three-cylinder pump in the port
ugne-room or by the pumping engines for
orking the guns and turrets. There is steer
lg wheel IN The pilot-house, the coming tower
nd the steering engine room. A clutch is ar
anged 10 throw out the hydraulic power IL
esised. and the rudder can then be moved by