The Indianapolis times. [volume] (Indianapolis [Ind.]) 1922-1965, 1935-11-09
the start of the cool fall

WITH the start of the cool fall
W weather and its strong winds,
Junior AviatorS are turning their
attentions from the large and heav-
Ter outdoor crafts to the more deli
cate indoor models.
While no definite national pro-
gram will be followed by the score
of Junior Aviator cities through
out the nation during the winter
months, present plans in a great
many of the cities call for large
city-Wide indoor races. 1t is with
this thought in mind that Scripps-
Howard Model Engineers have de-
signed a series of indoor crafts of
both stick and fuselage types.
The endurance R. o. G. model
described in today's story has been
thoroughly tested and flights of over
five minutes with this ship are not
unusual. But the builder must re-
member that indoor models are far
more delicate than outdoor models,
and for that reason far greater care
must be eXerted in their conStruc-
ton.
Wherever possible the size of the
materials must be cut to a mini
mum in order to decrease the
weight. If the builder is expe-
rienced with the handling of micro
film, it is recommended that it be
used as covering. Later in this
series we will give a detail lesson in
use of this new covering and how it
is made.
MATERIALS
One piece of balSa wood, 1-8X1-
16Xl0 inches for motor stick
Six pieces Of balsa wood, 1872
square 10 inches, for wing, tail
units and landing gear.
One piece of balsa wood 1-64X2X8
inches for propeller and wheels.
One piece of balsa wood, 1-32X2x18
inches, for propeller Nominations.
One piece of Music Wire OLA for
fittings.
One bottle cement.
One sheet of japanese tissue.
One piece of 1872 square rubber,
40 inches long, for motor.
One small brass washer for pro-
peller shaft.
MOTOR STICK
Cut the motor stick to size from
1-8X1-l6inch balSa and taper nose.
Bend the thrust bearing from OLA
music wire and cement in position
on the nose of the stick and lash
with silk thread. Bend the rear
rubber hook and cement in place.
LANDING GEAR
Cut the two landing gear struts
from 1872 square inch balsa wood.
Cut the wheels from 1-64-inch flat
balSa and bend the wire axleS. Ce-
ment the aXleS in place and then ce-
ment the struts to the motor stick
about l IL inches from the nose.
TAIL UNIT
The rudder and both sides of the
Stabilizer are identical. On an
ordinary bread board draw the rud-
DER design to exact size and shape.
Outline the form with brads or pins.
Soak the piece of 1-32 square inch
balsa wood in warm water that is
to be used for several minutes then
bend 1t to form by placing it
around the pins or bradS and allow
to dry before removing. After it
is dry. it will attain the desired
shape. Repeat this operation for
both rudder and stabilizer pieces
and cement to the motor stick.
Cover with japanese tissue. If the
builder is experienced with micro
fllm. it is recommended as a cover
ing for this model.
WING
Bend the wing frame. using the
same method as in shaping the tail
frames. After the frame is dry. ce-
ment the ribs in place. Before plac-
ing the tip rib in place, crack each
section for the tip dihedral; then
place the tip in position. The
main dihedral angle of one inch is
obtained when the two wings sec
tons are cemented together. Bend
the wire wing clips and cement in
position. Microflm covering is pre-
80 THRIFTY-