Manual
V22.
Remove a small section of rib
S2v
between the
LE
brace and the sub spar. Now you
should have a slot in rib
S2V
like the one in the
photo below.
DO
NOT
cut the slot shown in rib S1
V
until instructed to do
so
later.
I
V23.
Cut six
2-118"
long hinge blocks from
the
1/4"
x
3/8"
x
36
"
balsa stick. Glue the hinge
blocks evenly spaced to the stab TE spar and the
ruddervator
LE
spar where shown on the plan.
Glue the die
-
cut 1/8" balsa stab gusset to the
hinge block and rib
S7V
as shown on the plan.
Position the gusset
so
it is not on the centerline of
the hinge
so
you do not break it when you cut the
hinge slot. Align the grain as shown on the plan.
V24.
Trim the ruddervator torque rod block
and any protruding hinge blocks
so
they are even
with the bottoms
of
the ribs.
V25.
Reinforce glue joints that don't look
strong.
V26.
Glue the bottom stab and ruddervator
skins to the bottom of the stab and ruddervator.
Work over a flat surface and be careful not to add
any twist into the stab as you press the skins onto
the stab frame. Make sure the
TE
of the
ruddervator skins align. Optional: Use the die
-
cut
1/8" balsa V
-
tail stab cradles S2V and S7V to
hold the stab flat on your workbench while you glue
the bottom skins on. Use the stab saddles the
same as the wing saddles shown in stepsl
-
5on
pages
30.
V27.
Use a bar sander with 80
-
grit sandpaper
to sand the sheeting even with rib
S7V.
V28.
Cut the ribs and separate the
ruddervator from the stab. Sand the excess
sheeting and rib
stubs
from the
TE
of the stab and
the
LE
of the ruddervator. Sand the root of the
ruddervator sheeting flush with rib SIAV.
V29.
Cut
4-3/8"
off the
small
end
of
the die-
cut
1/8"
balsa stab
TE
(S10).
Glue the stab
TE
to
the stab
so
the root end aligns with the inner edge
of rib
S3V
as shown on the plan.
V30.
Shape the stab
TE
so
it blends with the
stab and tip.
-19-
V31.
Glue a ruddervator
LE
(also
S10)
to the
LE of the ruddervator and sand it
so
it blends with
the skins and tips.
V32.
Use
two large
T
-
pins,
placed in the
center of the leading edge of the ruddervator near
the ends, to align a straightedge and draw a
centerline with a ballpoint pen.
V33.
Mark the trailing edge of the stab the
same way.
V34.
Cut the hinge slots on the centerline
of
the ruddervator and the stab where shown on the
plan.
Do
not cut the hinge slot in the stab nearest
the root until instructed to do
so.
V35.
Cut three hinges as shown in the sketch
from the
2
"
x
9
"
CA
hinge
strip.
Snip the corners
off the hinges
so
they go into the slots easier.
V36.
Temporarily join the ruddervator to the
stab with
two
hinges.
If
necessary, adjust the hinge
slots
so
the ruddervator and stab align.