The Roanoke daily times. (Roanoke, Va.) 1895-1897, 1896-09-02
TO FLY OVER The Waves.
\ PROPELLER IN n BOATS BOW
TO LIFT HER NOSE Up.
The Resistance Minimized and the Cart
Will skim Along Fast Enough to
Knock aiDay Or the Transatlantic
Record.

NioCh dlDty wa tNG IfdlSttAtAtlC
Record.
Many schemes have been tried 10 force
a ship mt sea to develop II tendency To
raise her prows above the waves and ~
override them rather than pillow through
them. 1t has been conceded by seamen
and naval engineers, says the New York
Herald, that if II ship could he construct
ed which would not poke her nose into
every big wave, but would, on the con-
trary, try to rise over it, one of the great
est obstacles to making mountaineering
time over the ocean would he overcome.
In n majority of previous plans many
an oddly constructed craft was turned
out and some of them actually succeeded
in getting their prows well over the
waves, but what the inventive genius
could not overcome was how to carry the
tendency to rise far enough toward to
the center of the craft to get beyond what
is technically known rs the ''crest of the
transversely disposed wave notion
Robert s Peabody, of Germantown,
has suggested some interesting conceits
in shipbuilding by which he hopes to over
come the drawbacks and make an ocean
steamer slip through the water with so
little resistance that twenty-four hours
will he knocked off the transatlantic
record. r. - IT,
The craft designed by Ah.a Peabody,
while in no way differing as to its inter
Tor construction from the ordinary flyer,
has n hull so constructed as. to take ad-
vantage of the pressure on all sides, and
thus obtain additional speed from the
very source which in ordinary ships re
tarded them.
The idea of Il propeller, or twin screw,
ut the bow as well rs at the stern OF the
boat had already been successfully tried
on ferry boats and light river craft, and
to utilize the same idea on his invention
Mr.. Peabody designed hull of peculiar
construction below the water line. His
idea was to so construct that portion of
the hull forward of amidshp that the ac-
ton of Il twin screw working in the bows
would force the bows upward, and as the
resistance of the waves could be utilized
to still further force the PROV up his OBJ
ject would be accomplished.
In Mr.. Peabody's invention the hull
of the boat is provided with grooves that
start from opposite sides of the Prov and
which are Ion gitudinally convex in re.
spect to the surface of the water. These
grooves converge toward n point exactly
att the keel and little more than half
way between the bow and stern of the
boat. This point is substantially the
location of the crest of that "transversely
disposed wave which has so long been
barrier to speed.
These funnel-shaped grooves are suffi-
GENTLY wide at the Prov to allow pro-
peller, or twin screw, to be worked with
in each. These two spropellers work in
opposite directions in such manner that
their lowest portions turn inward. AS
the grooves are carried onward toward
the center OF the hull they narrow until
they finally disappear in the swell.of the
body of the boat TIE plates of a ship
may completely cover these grooves, if it
Is desired to do so, to protect the propell-
| ers, although in the opinion of the inven-
tor this is unnecessary
Either single propeller or a twin
screw can be placed in the usual position
mt the stern of this record breaking craft
When the vessel is at rest the bow is
slightly lower in the water than the
stern. As she moves through the water
however, the rotation of the propellers
gives energy, motion or force to the
water. This motion or energy is not in
this case lost, however. Being located
atssthe bow of..the boat az the very en-
trance tc the converging grooves, the pro.
pellers not only raise the bows and force
the water against the sides of the narrow
ing grooves, but also force it backward,
thus creating wave over which the ship
is continually trying to ride.
The water rushing through the grooves
gives rise to Il sternwardly wave notion
which as it passes beneath the ship out
of the narrowing grooves, is caught by
the stern propellers, the result being that
so long as the ship is in motion there is
beneath her COT slant wave motion, al
ways travelling in an opposite direction,
and, owing TO the peculiar formation of
the grooved hull, forcing her onward
Mr.. Peabody also thinks that the act
ual displacement of ship constructed on
the lines OF his invention is not nearly so
great rs in an ordinary ship of equal car
rying capacity, as i'll the latter case the
WAGER must be wedged away by the hull
of the craft, whereas his boat glides over
rather than through the water, thus also
reducing ''skin friction.n
SYNDICATE OF COUNTERFEITERS