Mounting The Horizontal Stabilizer; Hinging The Elevator; Vertical Stabilizer Installation; Aligning The Vertical Stabilizer - Model Tech Extra 300 Instructions For Final Assembly

5) Attach the wing to the fuselage. Align the
centerline mark on top of the stabilizer with the cen-
terline of the fuselage at the rear. When that is aligned
hold the stabilizer in that position using a T-pin and
align the horizontal stabilizer with the wing. When
viewed from the rear, the horizontal stabilizer should
be level with the wing. If it is not level, use sandpa-
per and sand down the high side of the stabilizer
mounting platform until the proper alignment is
achieved. The tips of the stabilizer should also be
equal distance from the tips of the wing. See figures
# 2 and # 3 below.
Figure # 2
A
Figure # 3
A
6) When you are satisfied with the alignment,
hold the stabilizer in place with T- pins or masking
tape, but do not glue at this time.

MOUNTING THE HORIZONTAL STABILIZER

7) With the stabilizer held firmly in place, use a
pen and draw lines where it and the fuselage sides
meet. Do this on both the right and left sides and top
and bottom of the stabilizer.
8) Remove the stabilizer. Using the lines you
just drew as a guide, carefully remove the covering
from between them using a modeling knife. See photo
# 12 below.
Photo # 12
Remove
Covering
A = A1
A1
A =A1
A1
9
When cutting through the covering to remove
it, cut with only enough pressure to only cut
through the covering itself. Cutting into the balsa
structure may weaken it.
9) When you are sure that everything is aligned
correctly, mix up a generous amount of Kwik Bond
30 Minute Epoxy. Apply a thin layer to the top and
bottom of the stabilizer mounting area and to the sta-
bilizer mounting platform on the fuselage. Slide the
stabilizer in place and realign. Double check all of
your measurements once more before the epoxy cures.
Hold the stabilizer in place with T-pins or masking
tape and remove any excess epoxy using a paper towel
and rubbing alcohol.

HINGING THE ELEVATOR

10) The C/A hinges have already been glued into
the elevator. Slide the elevator and it's hinges into
their precut hinge slots in the trailing edge of the hori-
zontal stabilizer. Slide the elevator in until it is tight
against the trailing edge of the stabilizer. The maxi-
mum hinge gap should be no more than 1/32".
11) When satisfied with the fit, remove the el-
evator. Using a modeling knife, carefully remove any
excess covering material that may have overlapped
onto the hinges. Do not cut through the hinges!
12) With the elevator tight against the stabilizer,
rotate the elevator down about 45º. Apply six drops
of Kwik Bond Thin C/A to the exposed area of each
hinge. Allow the glue to cure for about ten minutes.
Once cured, the elevator may be stiff and difficult to
move. This is normal. Gently move the elevator up
and down about five to ten times to free it up.
PARTS REQUIRED
{1} Vertical Stabilizer w/Rudder & Hinges

ALIGNING THE VERTICAL STABILIZER

1) Using a modeling knife, carefully remove the
covering from over the stabilizer slot precut in the
top rear of the fuselage.
2) Remove the rudder from the stabilizer. Slide
the stabilizer into the slot in the top of the fuselage.
The front edge of the stabilizer post should be tight
against the rear edge of the fuselage. The sides of the
post should also be flush with the fuselage sides.