The Sun.
London, England, 1852-12-11 00:00:00

NAVAL INTELLIGENCE.

PORTSMOUTH, FRIDAY.
The Fearless screw-steamer, belonging to the Russian Go-
vernment, having had her machinery thoroughly repaired and
and modified by Messrs. Tennant and Dykes, of Deptford,
went out of this harbour to Spithead, yesterday noon, under
steam, to try the working of her engines. This vessel is 200
tons register, and although she has only a single engine, with
a cylinder 22 diameter and 20 stroke, she accomplished a
speed of 7} knots per hour, which will be materially increased
after adjusting her machinery, proving that, owing to the
alterations made, her speed has been much increased, while
the consumption of fuel has been by the same means reduced
one half. The Fearless sails next week as a tender to the
Russian 50-gun frigate Pallas, for Ka.mtschatka.
The Avon, steam tender, Master-Commauder Veitch, ar-
rived this afternoon with supernumeraries from Plymouth.
The l ...ions, 16, paddle frigate, Captain Loring, hauled out
of dock to the fitting basin to-day, having had her bottom
cleaned ; and the Sidon, 22, paddle frigate, Captain Gold-
smith, has been placed in the vacant dock for the like pur-
pose.

Captain Martin, C. 8., of the Victory, returned from leave
,o-day.

SHEERNESS. 10.
Her Majesty's ship London, 90, Captain G. ,R.z Mundy,
sent up her top-gallant masts yesterday, and will proceed to
the Nore this claY. After having taken in her powder and
being inspected, she will be towed to Spithead. To assist in
navigating her to that anchorage, one boatswain and 30 men
from the Boscawen, guard ship of ordinary at Chatham, 20
blue jackets from the Monareh and Waterloo respectively,
and a party of seamen riggers from the dockyard, have been
placed on board. Mr. Taylor, the Admiralty pilot at this
port, is to proceed in her as far as the Downs.
Her Majesty's paddlewheel steam-vessel Adder arrived from
Chatham yesterday with supernumeraries for the London.
At a late hour yesterday afternoon orders were received
from the Admiralty to liberate from arrest, on board the Wa-
terloo, flag-ship, Mr. John Forbes, late surgeon of the Rosa-
mond, under orders to be tried, by a court-martial, on charges
preferred against him by his late commanding officer, Lieu-
tenant Cranford, and to discharge the witnesses summoned to
give evidence on the part of the prosecution. It is stated
that owing to some irregularity in the proceedings of the
courts-martial holden on Lieutenant Godfrey Taylor, and Mr.
GeorgeD. Gordon, clerk, both of the Rosamond, the sentences
on those officers have been annulled.

WOOLWICH, DEC. 10.
APPOINTMENTS.

Midshipman Robert Pitman, to' the Cruiser, 17, steam
sloop, at Woolwich ; Philip J. Hawkins, to the Sidon steam
frigate, at Portsmouth.

Naval Cadets—C. B. Powell, to the Sidon ;R. A. Herbert,
to the Britannia, 120, flag-ship on the Mediterranean station.
The Cruizer, 17, steam-sloop, Commander Hyde Parker,
was taken out of the basin to-day, at 11.30 a.m., and imme-
diately went down the river to try her engines, having on
board Commander Cracroft, formerly commander of the
Reynard steam-sloop, Commander Hornby, Commander
Kerr, Commander Stewart, and Lieutenants Wodehouso
and Hodgkinson, five of the officers studying steam ; and
Lieutenant Robertson, of the steam department, afloat at this
port ; Lieutenant Pym, appointed to the Cruiser ; Mr.
Atherton, chief engineer at the factory at Woolwich dock-
yard ; Mr. Roughton, instructor of the officers studying
steam ; and Mr. George Rennie, and Mr. Rennie, jun., of
the firm that constructed the engines of the vessel. On
reaching the measured mile in Long Reach, the time was
taken, and on the average of four runs, two down and two
up, the speed of the Cruiser, with steam only, was ascer-
tained to be 6.54 knots per hour, the engines making 53
revolutions, or 106 turns of the screw propeller, per minute,
on the average of the four runs at the measured mile. The
engines are only two, of 30-horse power each, making col-
lectively 60-horse-power, and their working gave great satis-
faction, as they were only fitted as auxiliaries to a vessel
adapted and rigged for sailing, and of 800 tons, giving a pro-
portion of 13 tons to each nominal horse power of the engines.
The cylinders are 28 inches in diameter, with a two-feet
stroke, and the engines worked so smoothly that there was
not a hot bearing in any part. The engines, although nomi-
nally of 60-horse power, indicated while working to-day that,
with a pressure of 14 lbs. to the square inch, they could exert
a power equal to 170-horse power, or very nearly three times
the amount of nominal horse power they were constructed
or. Tho Cruizer, iu charge of her gallant commander, re-
turned to Woolwich at half-past four p.m., and was hrought
up at moorings in the stream.
The Pacha of Egypt has ordered a small yacht to be built,
of 55 feet in length, and only to have a draught of 18 inches
when afloat. In order to construct a vessel of that length to
have so little draught of water, she is to have two screw
propellers on Captain Carpenter's principle, and the motion
will be given to them by two small disc engines. Mr. Rennie
has had a boat constructed, 36 feet long and 5 feet broad,
with a draught of two feet, to which he has fitted a disc en-
gine 10 inches in diameter and five inches thick, and on try-
ing her during the present week, he made the run from Black-
friars-bridge to Woolwich, about 10 miles by water, in one
hour with the tide.

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