The Hawaiian star. [volume] (Honolulu [Oahu]) 1893-1912, 1903-01-21

THE PENALTY FOR SPEED
Harbors Must Expect Vessels Feet Long and OF Feet
comparison between the two largest vessels building
the Cedric and the Kaiser Wilhelm H. made in the of
paper the economy large ships read before the Canadian
Society Of Civil Engineers by A. W. Robinson The Cedric
cordng Mr. Robinson type of vessel having large
capacity combined with moderate speed while the Kaiser Viii
helm H. of type in which everything sacrificed speed
This is shown in the following tabular statement:
men k SBSa w Ra R Reom T s 6 S2Sl
S EsS wilhelm H. 1850 sSSS S SS i n0 SSo 1900 5sC
Says Mr. Robinson
Il" apparent from the foregoing figures that the
knots speed Tin the Kaiser Wilhelm l obtained at the cost
of additional coal consumption Of nearly of coal
day. and that the passenger accommodation much less and the
cargo capacity entirely lost This will give idea of the
enormous cost of high speed
1t will be that Mr. Robinson believes in large vessels but
not in attempt to drive them too fast through the water OF
the advantages OF great SIZE provided moderation in speed be
regarded as suhclen ne says 1--WE quote IN part an abstract
made for The Engineering Magazine December
1T has been found that the propelng required for
vessel Tor given speed increases IN slower ratio than the IN
of its displacement and in this fact found the main secret
OF the superior of large vessels good deal has been
done during the the Improvement and
boilers OF ships and in the reduction OF weight and
pied by Them but this improvement small compared with the
increased produced by increasing the size alone Dur
the past the paying load carried by representative
steamer has about doubled while the in
fuel has reduced from coal
horsepower hour to I8 pounds ccmISratvey small
saving.
Consrcivev the limitations as to size in shpbulfng have
by been attained The Celtic is about 700 feet long,
Is feet BEAM and 80 feet draft with displacement of $4,000
and gross tonnage 2OSOO and this about the
present limit of shpyads and marine engineering, but of
harbor draft and port facilities This fact realized partially
least and habo all the world being redged and docks
and channels extensively improved enable larger vessels
1T unnecessary rism say that large ships will not be
economical unless they be filled but this aspect OF the
ton than passing notice The difficulty OF providing
cargo for these large vessels great and their advantages
will be realized unless there corresponding growth all
along the line facilities for receiving warehousng and rapid
handling of the different kinds of freight i'll large quantities
In the keennes of competition OF the day is the
large economic cargo which will aid the most in the deve
opment trade and ships of great speed only
required for the purpose carrying mails and for carrying the
comparatively small number of passengers who willing to pay
the extra price for the saving OF time.
THE subject of fast ships always interesting to engi
neers as the highest skill in design and construction
The well be realized later that those ports
which expect retain their must provide safe chan
nes of ample depth and proper harbor handling and warehouse
facilities the large Vessels OF feet length
draft will have to be reckoned with before
very long only those seapo which have prepared them
selves visitors will be able reap the advantages OF the
commerce which such ships will bring -Literary Digest