The evening telegraph. [volume] (Philadelphia [Pa.]) 1864-1918, 1866-09-06
TRg "puNoERRERc.u -

W. ~ ~ ~ v y " u 4 NSs
The Marine Monster Ready for Use-The Trial
Trip Soon to Occur--A Dock Test of the En-
gines-Lheir Capacity, Conduct, Specialties,
Etc,-Ihe Kew Pumps, COndensers, Etc,
The great mailed steam ram, the Dunderberg,
is finally ready lor sea. Launched July III
1866, little over th rteen months have been
marVellouslJ busly occupied IN interiorily fur
nishing the marine Ttan, in nXIng the Immense
machinery, painting, decorating, ana transact
ing all the geuelal ana, III this case, eXtraoTdi-
nary effects that ateno the time between the
launching and the tr al trip OF "A vessel. Every
thing ls complete except The putting in OF the
armament That Is indefinitely dc erred. The
Government has resolved not 10 arm the marine
monster until An emergency arises for her use,
or, at least, not tor some time. The snip, or
rather ram, IS to lay IDLY by till such time rs the
naval authorities see bt to Waken her dormant
thunders into lrTes istlbie activity.
In ABOUT a week perhaps in little longer
time, the official trIal trip Is 10 be made, under
the observation OF RearAdmnal Gregory, who
has been ordered by be Govern ment to attend
upon her construction, and also OF several other
eminent naval officers, as well as oi Mr. William
H. Webb contractor ana builder, invited guests
and the members OF the press. Public notice
will be given antlcipatory OF the event During
the last two days, the gigantic anomaly IN
naval economy has been undergoing dock
test alter the manner OF tine W1nOOSkl and
AtgOnQI3n OF verboeraphic belligerent memory.
For the purpose, DoJ OF testr z either her po yer
or her machinery, which VIII be the problem
friclonal experience to her engines, ana a
familiarity with their working 10 the engineers,
the DdndeT6erg has been running during the
last forty eight hours under ten-pou ds' pr
sure OF steam TO the square inch and has, at
that MINIMUM rate, ach eyed thirty y-nve reyolu-
tions OF the tremendous screW wheel per minute,
or one i'll every one aud fve-tweltths seconds,
which would assure an easy sOeed OF nine knots
per hour. The average intention is to operate
under TWENTY-FIVE pounds OF steam, which will
secure sixty revolutions per minute The maxi
n ~ n hn soft
maintained - forty pounds, including seventy
seven revolutions every minute, which stan Is
1or an hourly speed OF betw cen sixteen and haf
ana eighteen knots.
MIR. Webb and Admiral Gregory. with only
the men regularly employed in the running of
the vessel, started Ia her at hve O'Clock this
morning Tor little steamng around the har-
Dor. No outsiders WeIe admltted all we're
rgidly forbidden passage, as the excursion is
purely for the purpose OF seeing how the ram
can be best worked tor her decisive tip, soon,
as stated, TO occur, when liberal acilitlcs will
be given for scientific and reportoTial investiga-
ton into the behavior OF this annlhilator of all
old time nautical ideas
VISIT TO 1.-THE THUNDERNG MOUNTAIN"
Yesterday afternoon our reporter was con-
Quoted through the magnificent Monarch OF the
Waters, by the courtesy OF the chlef engineer
AS the vesseI has been before most carefully
and elaborately engraved, and descr bed in these
columns, as to mos OF her characteristics, when
launched, description only OF her engines,
which OF course were not in at that period, will
be of fresh interest 10 the public.
These engines are two IN number. They are
of the horizontal, back acting condensed kind,
of GO00 horsepower. The cylinders, TOO, are of
a several internal diameter of q feet, with
piston stroke of 81 feet. By an immense eXer-
ton OF skill ana power they were interiorly
horizontally bored out. Springing or giving
is thus made next TO impossible. The superficial
condenser is arranged so as to operate for each
of the engines, and developes the following eX
tent:-Depth, 60 inches; length, 26 feet; width,
10 ieet.
MINOR ENGINES, TIE PUMPS, ETC.
In addition to the two main engines, the air
driving ana CiTCuating pumps are worked by
indepcn6eut ones, which were not in operation
Yesterday They are merely of ordinary extent
and features, but wien worked IN conjunction
with the motive engines viii give an unpre.
cedented velocity to the immense ram, one of
whose principal designs, the running down and
sinking of all opposing crafts, VIII thus be
LARGELY utilized The two steam cylinders work
ing the alr-pump are 36X36 inches, which also is
the exact measurement of the pump itself.
The circulating pumps are two in number,
and the condenslng pumos include an extent of
33x36 inches. Each enoine Las bge-pump of
nipe-inCh cylindrical reach, and a twelveInCh
piston-stock. The total capacity OF the coal
bunkers which are porlioGed out OF the interior
hull of the vessel, is the enormous number OF
2,224, 600 pounds OF coal, which carried to the
furnaces by little cars, propelled by an appllca-
ton of the very steam whose power they are
continually feeding. At pressure of ten
pounds the enpines consume two tons per hour
The ordinary burning will be 81 tons hourly
The extraordinary, or maximum, As tons.
DIMENSIONS OF ENGINES, BOILERS, ETC.
I Cylinders ttwo) each .....,.,... 100 inches,
Piston stroke. 40 inches.
Main BOlloIs.'.'' y ihcnes
Donkey b0lleIs...... lnches'
Heighth Of loilers.,.,,..,,..'. 10 ieet
npDth of bOlerE. 10 tCets