.
88. Cut out the sheeting from the center
section for the aileron servo. The exact
size of the opening will depend on the
particular brand of servo and the method
of mounting.
INSTALLING EASY HINGES
Using a No.11 X-Acto blade (or
similar) cut a slot approximately 1/2"
in depth and slightly wider than the
hinge. After all slots have been cut,
insert an Easy Hinge halfway into
each slot in one of the pieces to be
hinged. Then carefully slide the
matching model part onto the other
half of the hinges. You'll find it
easiest to slide the part onto the
hinges at an angle, one hinge at a time.
At this point the surface to be hinged
is attached but not glued. Align the
two surfaces and adjust the gap
between them as required. For best
control response, the gap should be
as small as possible but big enough
to allow the control surface to move
to the maximum deflection that you
will require.
Place three or four drops of any
brand of cyanoacrylate adhesive
(thinnest variety) directly onto the
Easy Hinge in the gap. You will
notice that the glue is quickly wicked
into the slot as it penetrates both the
wood and the hinge. Continue this
process, gluing the same side of all
of the hinges. Then turn the surfaces
over and repeat the gluing process
on the other side of each hinge.
After the glue has cured, approximately three minutes, the joint can be flexed.
You may notice a slight stiffness in the joint. This can be eliminated by flexing
the surface to full deflection each direction a couple of dozen times. Don't
worry about shortening the life of the hinge as they are almost indestructible.
89.
Place the wing into the fuselage wing
saddle and check the fit. Use Sig wing
cushion tape SIGSH545 to seal the
interior from oil and dirt. The wing, tail
and engine are at 0 degrees incidence.
COVERING AND FINISHING
It is important to put some type of fuel-proof finish on your airplane. With an
airplane of this size it is very important to keep the weight down. The plastic iron-
on coverings are a good material for this model because of their light weight and
no-warp. The manufacturer's directions for applying iron-on coverings are packed
with the material. Follow these closely, for different types of covering have
different iron temperatures and techniques of application.
Attaching The Canopy
Trim around the canopy, leaving a 1/16" flange.
Position the canopy on the fuselage and cut away the covering material which will be in contact with the canopy
flange.
Glue the canopy on to the fuselage, using either Sig-Ment or "Super" cyanoacrylate glue. The joint may be covered
with a piece of striping tape.
Page 12 of 14
Sig Hummer SIGRC50 Instruction Manual
