New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1895-06-16
AOF MARVELLOUS SWIFTNESS
.rupEr sEAGOING TORPEDO-BOATS TO BE
ADDED TO THE NAVY.
THE SPECIFICATIONS CALL FOR SPEED OF
rvENTY-sIx KNOTS AN HoUR-THE YES
Sells TO BE READY FOR USE BY THE
END OF ls9G-TIEIR ENGINES


Sells TO BE READY FOR USE BY THE
END OF ls9C-TIIEIR ENGINES
AND ARMAMENT
1vosbi,rton June 15-The Navy is to have three
eearonc torpedoboats with the almost incredible
sneed O. twenty-sx nautical miles an hour. BY an
ar, OF Congress approved March ?. 1925. provision
s made for the construction OF these vessels OF
"a exceed In Individual cost the sum Of NIoOO AS
coyornmental superintendent. preparation OF
,ars and the providing and installing OF ordnance
outfit must be compassed by That appropriation
tAe bidding basis will be assumed no doubt TO iaii
somewhere near $3.50 co., and the present cheapness
q, material makes It possible 10 get them con-
s,ructed within that margin. The boats Will have
.rin screws each actuated by Its own triple-ex-
mansion engine working in separate water-ught
compartment. These engines Will be OF the vertical
inver,ed-cyinder, direct-acting. triple-eXpansion
tvpe each with a high pressure cylinder fourteen
and onc-half inches in diameter, an intermediate
,ressure cylinder o. twenty-three inches diameter.
and two low pressure cylinders each twenty-five
and threc-quar,er inches diameter. the stroke or
nil pisons being eighteen inches. The Indicated
horsepower OF propelling engines Will De ABOUT
400 when the engines making Ss5 revolutions
a minute which 1t Is estimated Will give a speed
q, abou, twentv-six knots. The high-prcssure CYL
Under will be aft IN the starboard engine ana Tor
ward in the port engine and the low-pressure GYM
ders will be forward in the starboard engine ana
n
worked by means OF Cranks on a shaft parallel TO
the main engine shaft and geared TO that shaft.
All The main valves Will be piston VaIVes'
there being one for each highpressure. two for
each acknowledgements and two for each low
pressure cylinder. Each main piston will have one
nis,on-rod with n crosshead working In a slipper
gui5e The framing OF the engine will consist OF
vertical forged steel columns we'll stayed by daeo-
nal braces The engine bedplates Will be Of plate
steel supported on wrought steel keelson Plates
built in the vessel The crank shafts Will be made
IN one section and Will be hollow.
There will be two condensers, made entirely OF
composition and sheet brass. Each will have cool
ing surface Of about 1850 square feet Each man
engine Will have two-cylinder, doubIe-acthg ar
pump of the Bailey pattern driven directly from mo
main shaft The circulating pumps Will be or the
centrifugal type. one for each condenser Ihe pro-
nellers will be right and left. of manganese bronze
They will have diameter Of about SIX ieet' anu
pitch Of about seven and a hair rect lhcro viii
b. three water-tube boilers constructed lot a WORK
ing pressure of go pounds per square inch Two
boilers will be placed in water-tight cofnpar'-
men;. forward of the engine. with hreroom De-
tween them and the other Will be placed IN
separate tight compartment sha't OF the en-
ginos The total crate surface VIII pc ABOUT 10
square feet and the total heating surface about
7S5 SQUARE feet There will be three smoke
pipes one large blower for the after boiler. and one
large and two smaller ones for the forward boilers
The weight OF all the machinery and boilers IN
Guiding auxiliaries and heaters and water III me
golfers condensers and pipes and such stores ana
snare parts as may be carried board when fully
equipped will not exceed n!nety-two tons. Inc
normal coal supply will be twelve tons. with
bunker capacity however, for sixty tons Inc poa's
will have no searchghts. but Will De HSh.eu
throughout by electricity. and forced draught lor
the boilers will be induced by blowers. The living
spaces will be we'll ventilated without resorunS 10
artificial methods. The principal dimensions are;
Length on load-waterline 40 feet; beam. extreme
on load-water-lne, II feet; draught, mean normal
s IT, in; displacement, normal, loo tohs' ''u'-
Gated horsepower 300; speed in KNOTS an hoH''
twenty-siX.
All PARTS must be of domestic manufacture, and
bids are asked for under classes. Glass en-
braces bids the plans and specihsations preparea
boats to be constructed In accordance with the de,
signs Of the bidder-the essential requirement. 81
will be made Of steel other metal, or OF aloy,
whichever the contractor, with the Department
approval may deem best fitted to this END IN an
economical distribution Of strength and weight;
The armament will consist OF three ;oS
automobile torpedoes. 600 rounds OF onepouhuer am
Charges viii be arranged on the main deck the for
ward broaiside tubes being placed on ecnelon' an1
besides the extended OF fire OF each on rs own
side will be capable of considerable range aihwart-
ships The after discharge VII bs on me S SEM do
grees This disposition admits OF VIDE heid OF
anv emergcncy The iorpeIoes win be of the IS
inch Whitehead type, having motive force OF coii-
pressed air. ..,
There will be two coming towers one forward ana
one aft each thirty-iv feet from It's respective
end. with steering gear In each admitting Of con
troll from either station. The forward tower VIA DE
surrnounied by OF the one-pounder raId-'!.
guns the three others being arranged where most
advantageous along the sides In line with the TOT.
pedo discharges Forward. the frceboard Is carried
up 10 Y feet inches. and icrecastle deck runs
from the stem aftwarl 10 the forward tower. The
ARRANGEMENT adds materially to the seagoing guam
ties o! the craft, while afording increased berthlng
facilities for the crew and a housing for the wind
lass and other gear forward.
10 Premiums viii be offered for increased speed.
but should the speed fail below the required twenty
six knots and yet be above twenty-five Knots. the
penalty will be the rate OF $1,000 knot below
twenty-sx knots Should the speed fall be low TWEEN
ty-fve knots hour, the boats may be rejected or
a, the discretion Of the Secretary, accepted at re-
ducei price. to be agreed on by the Secretary ana
contractors. ,.
The providing for the building OF these boats
makes them subject 10 the bids OF contractors on
the Pacific slope. Mississippi River and the Cur OF
Mexico only unless the bids show that they can
not be built at these places at fair cost IN Which
case the Secretary Is liberty either TO bud them
az any Of the yards or ask for bids rom any
OF the weu-known building firms. The time limit
for construction being fifteen months from the date
OF signing the contract the vessels will be ready
for use By the end OF next year. Accommodations
vii, be provided for four commissioned officers four
machinsts and sixteen seamen.