, 1865-08-29

built IS Inc pIiYNIe yacht OF m American
gentleman-Mr. Ninans-who, as We have
the ship. The execution was first entrusted
to Mr. Hepworth, and he expended upon it
the most. perfect workmanship Of which
wrought Iron Is capable. The hull, rs The
dinary things IT is possible to imagine. Il Is
Immensely long. perfectly round, Resembling
the shape Of cigar, being, however. finelv
pointed at both ends, instead Of, as in a cirar
only one. The form is SO at variance WITH
all onr generally received notions Of uau.
Ical beauty thnt We can only stare at It
in mute establishment, though there il
something. In lta long, tapering lines
50 suggestive Of immense speed int one Is
| almost ashamed that no one ever Suggested
| such IN idea before. In Justice, however. Ia
our OWL time, II must be said TINT such ves-
eel could only be built Mt period when iron
ships werc In use and iron ship building hnd
Looking Mt her now, she appears to be little
more than gisnntic iron min yard, for some
| vessel Of the Grent Eastern class, having n
| q rather wide diameter in the middle, and Ia
Eered at each end TO point almost as fine as
that Of neeeio: her boilers, like all the
other paris OF the vessel; are on new plan.
! Four Of them are on the locomotive principle,
them drnft, and they are to work at one
hundred and fifty pounds pressure. This is d
great power, but as tie boilers are built far
Stronger than even locolcotive boilers, 1t Is
asserted that they could be worked up to one
thousand pounds, or even one thousand one
hundred pounds per squire incl; with safety.
There are one hundred and thirty:sl1 feet Of
the aid Of the blast fan, each c: c. ..aiG:5 Jue
hundred md th1rty-six feet can be made
to burn fifty pounds of coal per hour. II the
furnaces can accomplish this, then, according
to the rule which gives one nominal horse.
power for every two md half pounds orcoal
be working at nearly two thousand five lun-
dred horse power. In our best mail steam
ships, on their fastest trips, 1t Is found difficult
to burn thirty pounds Of coal per foot Of flre
bnr surface per hour. Il Mr.. Winans', then,
bum fifty pounds, he will be working up to
nearly two Thousand five hundred horse
power, or ut the rutc Of ten indicated horse
power to every ton burden Of his vessel. In
very fast ocean.gotng steamers the ratio Of
horsepower to tonnage Is only about two
and a half tons to one nominal horse
power. The advantage which the ci-
gar ship possesses In tllls respect, together
with those which her slender form, smooth
one hundred feet) will give, should enable her
to 70 ut an extraordinary speed. 1t Is said
that, ns regards motion at sea, rolling md
pitching will be reduced to o minimum, and
certainly Hef f0fm seems TO suggest that such
a result will very probably be ELECTED. With
very small masts, and nil her weights we'll
below the water line, she is not likely to roll.
But II she does NOT pitch, but cuts through
the water, she Will take IN over all," and In
that case, with her upper deck SO ncar the sea,
We should fancy that it would be swept fore
and aft, The extreme length Of the vessel
over all is one hundred and lfty-slx feet, and
her greatest widtl, and depth are, OF course,
a1nidships, where the circle Is sixteen feet d.
amctcr. Thus, then, her length ia no less
than sixteen times that Of her greatest width,
their width is only one seventh Of Their
length.