The daily union., 1852-05-09

which the British paying padde-whee steamers l2s
3D. or about 50 per mile, 10 perform was c5ered ~ BE-
performed BY screw steamers al 2s Cd mile that
The dinerencc between The cost OF employing screw steam
eIs and paddle.wheel steamers was lhe difference be-
tween paying rs. 0d IS. Id "A mile. and l2s. Cd.
mile ind, TOO, that IN the examination in England,
in 1913, Lord Auckland says the English usBg the
screw propeller. 10 large extent, as % an auxiliary power
IN the merchant service and Mr. Ward said that they
had answered perfectly in the Holland trade when they
had been tried He asked in is4s "Are you
aware whether il has become common In the merchant
service TO the screw propeller !" He answered
"I is extending ia the merchant service. and has pro-
dueed some very curious results The experiments had
been particularly successful IN the case OF those small
schooners which built for The trade with Holland and
then they 10 have succeeded completely They have
The engines of the Benhea occupy nearly third And
they attain very considerable sPeedegh knots, eight and
The apeures all immersed and the voyage of
dred and sixty niles upon long series o experiments
averages about hirty-six hours
was shown this morning a letter just received from
Boston, from gentleman OF high authority and great
penence In such matters, who says
my opinion !: so strongly IL favor Of pIopeiog with
to be sent on survey, or naval cruise of any kind the
paddle starting today and The propeller being laid down
be ahead in her work. cost Of my per lessi In
short the paddle be constantly the courtyard and
Of both"
Indeed. he says much TO justify the opinion that the
screw-propeer, an auxiliary, is destined TO make
revolution in the merchant service Il fact of which
have sort of doubt was told on Monday, at The
Navy Department that they had made comparison of the
log Of the San Jaeinto,' before her machinery broke
down, with the log OF the the Ism Jacin0
being propeller and the "Saransc side wheel steam
er. The "Saraaae' beat the "San Jaeino" less than
three per cent IN point OF speed while the sapero%riy %
tain Halstead says, at pp so and 90: d
"of armed vessels the Terrible has been selected for
paison because she is the most powerfully equipped
sails and aer carefully rejecting all performed
when towing, when cruising when disabled ia machine
sS G S and s Distance Of
miles, and shows for this period mean rate or duty of
and 300 horse power or with proportion of one horse
power every 81 tons But it must be observed, with
gard the armed steamer that unlike the sister ship in
mail employ he is required for the sake Of economy TO
M s IL the d1S ass
Of il, was performed under sail alone.
Now we have seen that the Two auxiliary vessels which
have been quoted standards performed eighty nine
ages in the year lSi7 making good distance Of 49, 5is
miles, and showing mean rate, or duty OF ship OF S2o
knots per hour"
Again, he says it has been found inasmuch as the
screw and sails auxiliary each other, that instead
OF having to build them OF clumsy mouds, as heretofore
these steamers be built OF the very finest forms If
were to hazard conjecture. would say that have no
doubt the day will come when the propeller,
auxiliary. will be used with our fast clippers, and make
the finest merchant ships in the world. say, therefore,
that the Collins steamers are not suitable for war pur
poses not only upon this testimony in relation them
hut upon other considerations
English navy, in l64S. He asked whether the
American steamers could carry guns He said better
than their own, and not quite well their own mer
chant say that these facts prove undoubtedly
that, according to the opinions Of all almost all. the
professional men OF eminence both in the British navy
and in ours-and my friend IRON Florida Mr.. MALLORY
tells that such also is the practice and opinion in the
French navy 1t is considered that other steamer is fit
Tor purposes OF war except the screwpropeler So that
if we are 10 expend the money which ought to be ex
pended in the gradual increase OF the navy in thus keep
ing up side wheel merchant steamers, will not only
expend il in a service 10 which it will not be ultimately
Incp I'm ttIt uuou iund in
order TO increase The navy in mode which will be useful
10 il, and which will enable 10 exercise officers
Why what Is our policy in relation to the navy We
seek 10 maintain Just such navy. aud more, as will
preserve the police OF the far is incumbent
on US to maintain that police. We also keep up skele.
ton arrangement capable OF extension and expansion in
time OF war, 10 make that skeleton arrangement ett-
cient, II Indispensable that should have all possible
means OF exercising and training our young officers How
can we do II ii we expend the money steamers 10 be
commanded by merchant captains And that Is the case,
understand, with these Collins steamers Ought not
10 expend the money which we can devote TO such ser
vices upon ar-steamers OF proper models and with
proper machinery, that officers may command them,
and be exercised in steamer with all her appointments,
and complete as 10 machinery, sails, and battery
go further. have rather striking view OF this
question suggested by Commander Dupont, in very
interesting essay which he has written national
defences; and find that, to extent the view
presented examination before the committee OF par
lament Of which spoke by the manager OF Of the
steam packet companies Com Dupont says that in time
OF war we should injure our commerce by Withdrawing
commercial steamers and, after all, have ships
well suited for such service, and that the alterations
necessary 10 be made 10 HI them for would greatly
impair their commercial capacities.
The manager Of the British steam packet company 10
whom | REFER when questioned by the committee of the
British House oil Commons the ability OF his COM
pany furnish their steamers, if there should be in
vason for war purposes says, could furnish part
of hem but il would be very serious disadvantage TO
commerce if you 10 take them all away. Why, in
time OF war; the ships that should want than all
others Tor commercial purposes would be these steamers,
which are fleet enough 10 run away from prvaees, and
might carry guns enough to project themselves against
them SO that, II you were 10 attempt 10 unite naval
and commercial marine in relation TO steamand you do
not attempt il by vessels moved by SAILS land the same
reason, At seems to me, should apply TO both)you will
hue both because II you attempt 10 make the vessels
somewhat stronger and heavier for purposes in lime
OF peace they will not be well fitted for carrying
freghis and passengers and IT, time OF war, you take
these steamers Tor military purposes you would not have
steamers well fitted for that service II they had
been originally constructed for war alone.
say then, that so far the clause requiring these
steamers TO be hed Tor purposes concerned IL is
humbug say that these ships of Collins not suit
able Tor war purposes unless you discred the testimony
OF all these ofces Ii is TO be remembered that Captain
Halslead the officer appointed by the British admi-
rally to try experiments between the relative powers of
the screw and side wheel paddle steamers. say you
must discred all this testimony, you maintain that he
Collins ships any ships built upon that PLAN are suit
able for purposes They may be suitable for carry
ing supplies, and for despatch vessels but there
cesSy for government bounes TO them shall
be always able TO command enough OF them from our
commercial steam marine. 4.s
Then, upon what other preence these grants the
these grants for carrying the mail crave your attention
"A n nnt IA "A mr. in rpIafion