January, 1918 
FOREST AND STREAM 
39 
hand pressure will be found sufficient in 
all cases of “emergency braking.” 
In speeding up or slowing down the 
motor a hand control, or throttle as 
shown will be found to give most efficient 
gently, but firmly on brake lever (which 
throws the brakeshoes into contact with 
the ice) and the machine comes to a 
standstill. Use alcohol and glycerine 
and Yz water in the radiator to prevent 
T HE above instructions are not in¬ 
tended for persons totally unfamiliar 
with the workings of a gasoline mo¬ 
tor ; such will do well to seek the aid of 
some friend who drives his own car. Any¬ 
one who has sufficient familiarity with an 
automobile engine to find the “trouble” in 
case of a breakdown, will be able to com¬ 
prehend my instructions and specifications 
and decipher my plans. If they seem ob¬ 
scure on any point I shall be only too 
glad to receive inquiries and will clear up 
any difficulty which may arise on any 
point. This is not a hypothetical aero- 
power sled. It exists, and some day this 
winter you may see it gliding past your 
ice-boat which lies helpless far from home 
when the wind falls to a calm. Those 
of you who have spent a day on the ice 
of the North or South Shrewsbury river 
know with what marrow-chilling power 
the winds sweep across the ice. It seems 
almost impossible to wear enough clothing 
to keep out the cold, and the bundled-up 
feeling which results spoils part of the 
day’s pleasure. 
You will note that my sled is equipped 
service. Connect this to carburetor 
throttle by a YY' diameter steel cable 
wire, arid Yi" wire spring to close it. 
This throttle valve may be operated by 
a foot pedal or “accelerator” and if this 
is desired, the hand operating levers are 
but slightly changed; the throttle to be 
closed by a light spiral screen door 
spring, fastened with one end to carbu¬ 
retor throttle arm, and the other end to 
side of main frame or to other conven¬ 
ient place, so that it will pull the throttle 
closed unless it is held open mechan¬ 
ically by either the foot or hand throt¬ 
tle. The hand throttle is to be spring 
locked in its sector so that it may be held 
open in any position. Provide a friction 
adjustment on spark advance lever so 
that this may be “fixed” to its best op¬ 
erating position after starting the engine, 
thus eliminating the spark advance lever 
at the driver’s seat. Provide an electric 
“cut-out” wire on steering handle so 
that by pressing the button the electric 
circuit is opened and the motor may be 
so stopped, when the sled will continue 
its flight, the air causing the propellor 
to revolve. Before slowing down to 30 
miles per hour release the switch and the 
motor again resumes its labor. When it 
is required to stop, press the button, or 
switch, on steering Lever, and pull up 
freezing. Use a very light and “high 
test” cylinder oil in the crank case al¬ 
lowing the motor to “smoke” occasion¬ 
ally, which means that the oil is so plen¬ 
tiful that it has reached the top of the 
pistons. Open up slowly at first until 
you know you are in control and your 
time and expense of construction will be 
found to be well spent in every way. 
I am sure you will not regret either. 
with a wind-shield which gives ample pro¬ 
tection to the occupants, a device which is 
impossible on an ice-boat. Riding in the 
aero-power sled is comfortable, and it is 
extraordinarily safe, compared to ice-boat¬ 
ing. One must beware of short turns; 
otherwise, there is danger of tipping 
over. The sensation of riding in the 
aero-power sled can be surpassed only by 
Hying, which it approximates. 
I" 1 yon cross i^ojo 
/t\* iron .(hinge.)_ 
WOOD. 
i54" a IS” 
1 R.0N /z' x 1 V'z:' 
0 screws, 
vr 
