Sacramento daily record-union. [volume] (Sacramento [Calif.]) 1875-1891, 1882-08-15
POWERS OF a anEAr 1RoNcIap.

4
| The new twin-sarew double turret vessel
Dandolo, belonging to the Royal italian
Navy, has just completed the trials Of the
machinery previous to joining the squadron
IN the Mediterranean. Excepting the omis.
sion OF she internal torpedo deck, she re.
sembles the sister ship Duillo in her general
arrangement, but she has considerably sur
passed her in speed. The DandoIo was
Quilt at the Royal Navy Arsenal at Spec.
zia, uneer the supervision of Director Boz
| gni, at whose suggestion the whole of the
DOW plating is worked flush, instead of the
plates overlapping. as usual The length
OF the vessel is 1877 feet inches; the
mean draught at the trials with armament
on board was IS feet 9 inches, giving to-
tai displacement of II, 235 tons. The bat
terry Is heavily armored, and is placed In
the middle OF the vessel; the two turrets
rise above the weather deck, and are placed
diagonally in their battery, SO as to enable
ali four guns to be fired fore and aft. Tha
armor OF the turrets is impenetrable to ali
except the heaviest modern artillery. Each
turret contains two l00-ton Armstrong
guns, made at Elswick, having a bore
seventeen seventy two one.hundredth inch
es, throwing a shot 2,0lS pounds, with
maximum OF 5ll pounds OF powder, the
ordinary charge being 335 pounds The
turrets and guns are moved and worked by
complete system of hydraulic gear made
at Eiswick. The loading ia also done by
the same means, the hammers being below
the weather deck and arranged 10 enter
the gun e'hen the isuzzles are depressed
for-thas parPcse. Between the turrets is
situated the mast, which really assumes
the function Of a look. out tower, as there
are no sails.
The Dandolo carries four large steam
launches and eight other boats, all hung
upon hinged davits, which are worked from
the steam capstan, and will hoist them
right on board. She is propelled by twin
screws, worked by two independent pairs
OF engines, which were contracted to midi
cate maximum power of 800 horses.
These engines, together with the pumping
and blowing engines, were constructed by
Mandsley, Sons & Field, of London. They
are the first compound engines which were
ordered for the royal italian marine,
though they have been waiting the compile
ton OF the ship at Spezzia since 1876, when
they were brought out in the royal trans
port Europe. Each set of engines is placed
In separate water-tight compartment, one
at each side Of the vessel Instead of being
side by side, they are situated one in ad.
vance of the other, the alternate spaces be-
ing occupied by the magazines, which ara
placed Immediately below the turrets.
Each pair of engines has one hish.pressure
cylinder, GA inches in diameter, and one
low pressure l20 irches In diameter, with
stroke of four feet. Steam Of sixty-fve
pounds pressure is supplied by eight large
oval and double-ended boilers, having
thirty-two furnaces in ALL Four boilers
are placed forward of the engines, and the
other four aft (; but each pair of boilers is
contained In separate water-tight COM
partment. The chimneys, which are
ample il size and hight, are built of one
inch plate from the main deck to tine flying
deck above the turrets, SO as to enable
them to withstand the great shock pro.
ducsd by the discharge OF the guns. On
the 25th of May the Dandolo proceeded to
sea for her first official trial, under the
command of Commandante E. Acton, who
was accompanied by Admirals Martin
Franklin and Caimi. The run to Genoa
and back was accomplished, without stop
ping, in six hours and twenty-eight minutes,
with mean indicated horse-p power of
nearly 1900, and maximum of 7,4l5
horses, aud the speed obtained was Isl
knots, with a consumption of 5l4 tons OF
COAL London Times.