The Sun.
London, England, 1859-11-10 00:00:00

2 TITRAORDINARY STEAM POTt

•
A .t a time when the performance of the Great
Eas
tern, especially as reards speed and consnl
tion of fuel, is watched with so much interest, the
folk wingi statement, says the Daily News, fur-
nisi' ed by a trustworthy correspondent, of the re-
suit of severial trials of the new screw steamship
Thu ader, cannot fail to command attention. Ap3rt
from the high rate of speed attained (17 statute
y the extraordinary
mile. ; per hour)
marl :s an immense step in the science of steam D3'
vigat ion, and will be hailed with satisfaction 11
all t hose who entertain a conviction that, under
prop( ;r economical conditions, the longest voyagesa
single
may be accomplished by steamers without
saving in coal
stopp age. Upon the importance of this as bearingl3,
upon the development of the trade with Iml
Chine L, and Australia, it is unnecessary to dwell '—‘,
"1\ [essrs. Dudgeon and Langley, of MillwallnUu
Dept! 'ord, have just completed the screw stearas
tail,
bIY
Thum ler, for Messrs. Apcar and Co., and Ca P,
Durht im, of Calcutta, and under the directions of
the la :ter gentleman, for the navigation of the Chnis
seas it ;ainst the north-east monsoons. Her &len:
eed
sions are as follows:—length between perP:,
240 feet ; beam, 30 feet; depth, 22i fee".
Tobuilders's measurement, 1,062 72-94 to ,
tons
igines are of 210 nominal horsepower;
er of cylinders, 55 inches ; stroke, 3 feeii
fitted with all the best improvements, sil:te
ted. cylinders, expansion gear, separate
boilers that consume the fuel and hea",l,l,r
!s and tubes to the point that the remainder
up the chimney and heats the suPe t
to the temperature of 300 degress volll°l3o
ion. A trial trip was made with her °li
inst., when she ran the distance betiv.eest
re and Mouse lights in 30 minutes egg ilex
ling at the rate of at least 17 statute Dll'er
ir, engines making 58 to 60 revolutions li.ch
driving the screw direct. Th 3 screw' I'vhler
ie ordinary iescriptien, is 15 feet diartle`4
1,- feet pitch. Engines during trial evolcuto
1,000 indicated horse power. The nuilic.r:at
rilio were on board, including several erale'ch
iinwtsithantdhe
ots..raStuellset
svceisesielifiaendehnegrinaecehrise'vemweeur
ry handsome vessel, and has not the shgb
srs,
ion even st her immedse speed. The *sigh
oan on the following day had her under woli,
veral hours to test her consumption of calla
. working with steam at 191bs. pressure'
ones
full full expansion and superheaters, the ens
54 revolutions per minute regularly, the 3,op-
.ed over 14 knots per hour, and the eens-r or
)f Dliffryn steam coal was 8201bs. per heuower
ar as possible lib. per indicated horse P, 4.00
our, being the greatest result yet obtained '. ira,
;team-engine. At the time of trial the
ent
ed midship section was 342 feet, &placer('
by lire:,c, 1,000 tons. The vessel was designed ia
tail,
L Dudgeon under the instruction of U•
P a.
AV. Du
Lam The engines made by S. and ii
She
, and the ship built by Mr. Langleykb 0 rod'
T 1 1 with
—eattie's patent screw outside -- she
and Beardmore's superheaters to boilers.
vessel of
the most airy accommodation of ell ~ her
class. Government, we believe, have tai'e" ,
jos
ship for the conveyance of invalids to thre 04
,s in the Chinese expedition, for vinieli he "
.on and airy decks eminently fit her.
____........-
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escapes
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the 3d
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per hol
minute
is of tl
and 29
950 to
party
mercht
please(

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Dudgt
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