Los Angeles herald., 1910-01-16

through a square port in the cylinder
casting No manifold is used.
Gasoline is vaporized through Sheb-
Ter carburetor set above the engine and
drawn down through a tube which
runs parallel to the crank SHAFT ana
distributed by straight manifold tubes
to the intake.
Have Similar Troubles
In the. big tentsI also saw Strom-
berg pot" and on one of the smaller
motors a Breeze earburetor. Judging
from this, mixing devices are as much
of bugaboo to the aeronaut as they
are to the automobile driver
There is only one system of ignition
used, a jump spark from the Bosch
high tension magnetic having eight dis
tributing points.
fabrication is by forced feed from a
gear-driven plunger pump, Curtiss' pat
ent, and also has a hand pump to re-
plenish the crank case from the reserve
oil tank slung. under the engine. Ihe
main oil duct is carried through slght
feed near the operator
Two gallons of water fill the cooling
system, and this is kept in circulation
by gear pump through square ra-
diator of the true honeycomb type,
1873 inches.
Torpedo Gas Tank
The gasoline tank is torpedo-shaped
and carried overhead and partitioned
at one end for water. 1t has capacity
of twelve gallons. The estimated con-
sumption of fuel is two gallons an
hour at full speed.
The propeller is a two-bladed affair
of highly polished laminated wood,
seven feet in diameter and having a
| b-foot pitch. At 1900 revolutions a
minute, the thrust of this propeller, or
scale pull, is 22S pounds.
The engine and propeller weigh 175
pounds, and the entire machine weighs
| $50 pounds. This power plant lifts
eighteen and three-fourths pounds per
horse power and has a speed of nearly
sixty miles an hour.
The other Curtiss biplanes are smaller
and the power plants are reduced ac-
cordingly.
The machine flown by Mr.. Willard
| has motor of 25-horse power, four
| cylinder vertical; bore, 3%x4-inch stroke
and develops this power at 1900 revo-
lutions a minute; weight, 80 pounds
| At 1900 revolutions a minute, 30-horse
power is developed. The crank shaft is
of chrome nickel steel / Is inches in
diameter, rests in solid bearings of
Parsons white brass, but has a ball
thrust bearing.
Propeller of Wood
The valve mechanism is the same as
used in the eight-cylinder motor, like
wise the lubricating devices. The pro-
peller Is of laminated wood highly
polished, six feet in diameter and has
! five feet pitch and at 1900 revolutions a
minute exerts a pull of 175 pounds.
The entire weight Of the biplane is
about $40 pounds. About TWENTY-FIVE
pounds are lifted per horse power and
two and a half pounds per square foot
of surface. 1t has a speed of forty
seven miles an hour
MIR. CurtisS at present Is experiment.
ing with a fourbladed propeller which
on trial attached to the 25-horse power
motor developed push of 200 pounds.
The main planes of the Curtiss ma
chine are constructed Of ash and spruce
and the outriggerS carrying the ele-
waiting rudders in front and rear are
of bamboo.
The "Gnome" motor of the Farman
/ biplane usel by Aviator Paulhan is a
| delight to the eye. Seven cylinders
air-cooled and developing 5O-horse
power at 1900 revolutions a minute and
\ each cylinder turned up from solid
blocks of chrome-nickel steel are the
main parts, and the pistons are of the
same metal and construction.
Paulhan's Machine Described
The two main bearings are annulal
| ball, also a ball thrust collar. Con.
Meeting rods are drop-forged, witt
bronze bearings of generous dimen.
sions on the crank shaft. The cranl
! shaft is one and one-half inches il
Of pI, 1f,,1-1
and the crank shaft case of the same
material. The bore is four and one.
| half inch stroke, inlet valve two anC
| three-eighths inches in diameter, ta-
| pered seats and sets in with the pis-
| ton head. Its automatic gas is taker
| into the crank case through the crank
shaft, as is the lubricating oil.
The exhaust, set square in the cyl
| inder head, is the same size, and is
actuated by slender push rod ant
rocker jumped by a cam wheel in
| closed in the crank case.
Ignition is by jump spark from high
| tension Bosch magnetic. Castor oil is
used entirely in the fabrication of this
| motor, forced through a sight glass
in easy view of the operator. The
propeller is a Chauviere pattern, two.
bladed, eight and one-half feet in di,
ameter, and having a n foot pitch
| The motor and propeller weigh 16(
pounds. The entire weight of the ma.
chine, with aviator aboard, is in the
neiglrborhood of 1850 pounds. The
weight per horse power lifted varies
| but is approximately twenty-foul
pounds. The weight per square foo
| lifted is two and eight-tenths pounds
At 1900 revolutions q minute the pul
exerted by this motor and propeller
is 240 pounds. 1t has a speed of thir
| tV-eight miles an hour.
The Bleriot Monoplane
The Bleriot monoplane in the Paul
han camp is driven by a three-cyl
inder Auzani motor of twenty-five
horse power at 1850 revolutions min
ute. The cylinders are mounted on {
circular crank case, the middle cyl
inder perpendicular to the plane ant
the other two inclined at an angle o
forty-five degrees.
This motor drives a two-blade(
Chauviere propeller six and three
fourths feet in diameter, with pitcf
of two and three-fourths feet. Th'
entire weight of this monoplane is 67
pounds, and it has a speed of thirty
five miles an hour. It's power plan
| lifts about twenty-eight pounds PEI
horse power and supports two anC
one-half pounds per square foot O
surface.
TEMPLE BAPTIST PASTOR
COMES EARLY NEXT MONTH