New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1893-08-13

LONGITUDINAL SECTION OF
The claims Of the inventors TO conflict on sew
eral points, and the Commodore Is OF the OPINION
that the inventors should appear before the boao
and reconcile the discrepancies In their calms oeSrc
tary Herbert said recently that Mr. Holland ara
Mr. Baker would be invited TO again come before the
board and make such statements seemed ncccs-
sary TO put their inventions upon an equal fooun9
R1th respect to strength, endurance ana Internal
arrangements. Both Of these vessels are OF novel
design and description OF them Is highly inter
estlng
THE HOLLAND VESSEL.
Mr. Holland claims for his invention great simplicity
NJ design strength OF hull and certainty of action OF
the working parts the vessel In the argument sub
mitted with his proposal 10 meet the Navy Depart
ment's requirements for a submarine boat, he says
he has prepared plans OF vessel which can run
awash at high speed with fair amount OF armor pro
lection: approach an enemy unobserved. and dive
and attack rapidly and effectively. scarcely secondary
10 these qualities he Is the power no rise TO the
surface and return safe depth quickly and without
danger. The boat is designed to work on the surface
while partly submerged when at depth Of seventy
feet below the surface. Its motive power Is III duph
cate engines and tOiers, fed by coal or crude pc
troieum for surface partly submerged operations
and an electrical plant for service under water In
general appearance the boat Is not unlike some OF 'h'
small torpedo boats now used by England France ana
Spain The notable difference In appearance j. mat
on the Holland boat there is placed an clohgaeo o'"
steel supersructure. fftyseven feet long, hVe lee'
wide at the and four feet at the top Ihs super
structure Is intended 10 reduce the resistance OF '
water when the boat IS running awash or submerged
and also 20 afford air. light and storag' space. 1h'
general dimensions of the boat to be: Length
eighty feet: diameter eleven feet displacemel@tlgh
1855 tons; at load line. 1874 tons Inc mes
are Of the twin quadrupe expansion type CIVIC OIL
making 500 revolutions per minute, ana Prco"'i"S
eighteen pounds Of steam per horse power Al msh
kpeed only two and a half. and at low speed TWO
pounds OF fuel per horse power are required. Inc
electric plant consists OF General Electric Com
pany's seventy horse power dynamo ana 31o -"ihe
storage batteries. The speed of the vossei OH inc
surface will be sixteen knots. with the supersr"c'r
awash, fifteen knots, and when running supm'reu'
eight knots Her endurance will be, on the surface
fifteen hours when submerged. six hours
The boat's weapons OF offence and defence are 10
no automobile torpcdoes, which will be discharged
from two expulsion tubes one placed III inc 10" anu
the other In the stern. She viii iah'hah! carry
Eve torpedos. although provision is made ior TWO
more. Her chief means OF protection Will be inc
xater above which will vary in depth with the VIII
Of the commander: II BE- as much as seventy
feet as the vessel Is designed 10 20 that much below
the waters surface. depth Of twenty feet can be
reached in that number of seconds after the oraer
to dive Is given, the boat running light and at iu
speed ahead at the time. When partly submerged
and when the order 10 dive is Anticipated, the opera
ton OF sinking TO depth OF twenty feet VIII only
occupy ten seconds when nearing the enemy the
boat can he submerged three feet, ana by means Of
camera lucida the commander can oban a eool
view OF his surroundings the water above being
safe protection against shot and she'll. As a pro
lection when running the surface OF the wafer
the boat has an armored turrct. eight inches thick
rising four and onehalf feet above the bull. The
principal part of the hull Is Of oneinch steel plates
The shell double for about three fours OF the boats
length aft Of the STEM The internal distribution OF
SPACE Is arranged with view to strength and safety.
The forward open space within the inner shell *
designed to afford TO operate the torpedo cNpul
sion tubes. The boiler Is incascd in asbestos OF a
double thickness and intermediate air space on top
The engines, condensers, pumps, blower dynamo ana
connected apparatus are placed In the engine ROOM
Every possible provision for light and ventilation
seems to have icen made. Each side Of the vessel
has eight dead lights four OF which placed over
the torpedo two the boiler space SIX over
The engine room. and four the space AFT OF IT..
Over the torpedo IS placed companionway, four
feet long and two feet wide. similar passage IS
plaeed over the engine The rapdlty with which
fbe vessel rise enables her TO TO the surface
AZ short notice for both air and light. An ingenious
device consisting of noat tubes and valves. which
will work at depth OF forty feet, does away with
the necessity Of coming 10 the surface when the boat
is not deeper than that number OF feet The device
can be connected with the electric motor and. by
.a.v manipulation fresh air may be sucked down into
the boat for an indefinite period Air reservoirs are
nrovided for use at greater depths From them air Is
constantly allowed 10 escape. Initiated air Is forced
ont by means Of pump driven by an electric motor.
The air reservoirs contain thirty cubic feet OF air at
a pressure of 1000 pounds to the square inch The
.mount ,s more than sufficient for the crew for six
hours.
The method OF operating the Holland boat Is In
eenous and efficient. IT, when running on The sur
face of the water, II IS desired to dive while the
smokestack end air shaft are erected ana the Nessei
Is going ahead at full speed Kingston valves piaceo
on the bottom in the lower water spaces are opened
and the air contained In the spaces allowed TO escape
The blower is stopped the furnace and ash pit doors
are closed alright being provided with freprooi
hacking The smokcstacks lowered. and the cover
of the apertures through which they pass Is swung
around dropped irtO place and tightly clamped 10y
this time the vessel will be nearly awash. WINE
reaching that position she Is run In the drecuoh III
which 1t Is necessary to steer, steam power Deihe
employed until the pressure In the boilers Is run ."
The simple adjustment OF lever connected with TWO
large rudders placed the OF the boat causes
the forward end OF the rudders TO tip upward ana
the vessel 10 descend. The angle OF descent Is about
ten degrees. When the boat has nearly reached the
eeptn NJ which II Is Intended 10 rum the lever is
moved slightly In the opposite direction causing the
vessel to remain at the required depth. As soon
taincd. an automatic apparatus will prevent further
considerable movement In vertical direction. II by
should run TO greater depth than Is desired given
number OF pounds OF water can immediately he ex.
much and communicating strong upward tendency.
The first part OF the submerged run Is made with
minute the pressure OF The boiler is exhausted and the
temperature greatly reduced. steam Is then TO be
viii proceed on the submerged run with the power de-
lived from the storage batteries shonld Il be De.
Softom two small auxiliary water ballast spaces, or