The sun. [volume] (New York [N.Y.]) 1833-1916, 1894-01-08
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there arc two water.tiRht compartments Of
aluminium without any opening or commune.
cation. These compartments ate ues,,ned %
in addition. to assure buoyency.
The fastening OF the plates OF the Nendenesse
WAS O n extremely delicate operation, owing to
the difficulty Of working new and com pletely
unk nown metal Several trials were necessary
eIuminium' In tho first place It was necessary
10 accustom the workmen hitherto employed
in T1 os % Dr soPP having Uni physcs
properties absolutely different
Another difficulty for the builder was to rem
parativeiy easy to obtain with plates Of but III.
tie thickness In iron construction: but with
Iecomes far more difficult to solve. In this
case the water-tiRht condition is only obtained
flor the %Gss Pfhrt n snS
ia considerably diminished: Although this
method s good enough r T Ibs ssnas or o
hui ike that Of the Vendenesse., which is
destined to undergo considerable strains In
the Loire made the experiment success
The aluminium entering into the hull OF the
sUcy Of Sss The Ss
N. Charpsnter Page of the foundry q y Val al
the world to lam I'M ate plates Of aluminium al.
ioy OF large dimensions capable OF being bored
Of the Vendenesse. there was employed about
/ 100 Kilograms Of aluminium and 100 kilo-
s1 to o. asSS With 81 I
This Is Tomarkebly small, especially when
hull has to support ten tons OF lead ballast and
a considerable sail area. ,
ain OF moro than 40 per cent. over eimilar
hull made OF wood and the gain Is stu
greater Of Il
il i'm pc sible to diminish beyond measure the
~ VI pnass. rv "a nre.erva Tho alurin
ium from the contact with salt water; be-
cause this metal. Interchangeable IN fresh water
although less than iron. under the influence OF
the salt in the water OF the sea- M. duilioux.
soase IL hf Ss p
m ode Of special application which seems to
unite the desired Gonditi1ns for the preserya:
posed. The irst to obtain adherence 70 The
and the third to hinder marine yegetations and
incrustations from forming on the bottom. by
sHTops whSh s SS0y fs5 the s
analogous results. NJ. GuilIoux has recently
learned that the, paint on the hull OF the Ven
denesse is made on the same principle as
that which few years ago was adopted py the
Japanese Government
OF the Vendenesse simply varnished SO as to
preserve the color OF the metal; but since she
Of Temperature between the air and the water
occasioned on the interior surface condensa-
ton Of st eo 5hfa
this Inconvenience the interior surface re-
oeiyed several coats Of paint.
The fittings OF the yehd enesse are extremely
light their total weightibeing about $50 kilo-
grams. They are made Of yellow pine and are re
screws. This Arrangement which IL rather
costly permits the almost instantaneous tax
ing apart OF all the furniture OF the boat with
out damage and renders possible an inspee;;
without great expense. The interior grange
tain measure. to Increased rigidity OF the hull
All the principal pieces are connected by last
enings In aluminium and in this way serve to
strengthen the boat
The deck OF the vendenesss 10 formed Of
aluminium plates three millimetres in thick.
ness and is covered by one single piece
OF llpoleum. The frames are formed OF
steel and are stronger than those employed
ordinarily in racing yachts OF ten tons on ac-
count OF the unus ual weigh q lead on the keel.
TO test the strength OF the vessel she was
thrown upon her beam ends By cable fast,
ened to her masts and worked on shore. She
was left In that condit ion for two hours. and II
was ascertained that her righting. power was
very much greater than that OF any other
vessel OF the same size. II was also found
after a thorough Inspection that tho strain did
not cause tho slightest damage to the hull